International Journal of Adhesion and Adhesives最新文献_第5页

Evaluation of bondability of different wood species using adhesives for wood-based panels 用胶粘剂评价不同树种木材的粘接性

IF 3.5 3区材料科学 Q2 ENGINEERING, CHEMICAL

International Journal of Adhesion and Adhesives

Pub Date : 2025-11-25 DOI: 10.1016/j.ijadhadh.2025.104230

Andrej Fašalek , Lukas Malzl , Johannes Konnerth , Hendrikus W.G. van Herwijnen , Jan Stroobants , Johann Moser , Wolfgang Kantner , Christoph Gabler , Maximilian Pramreiter

Due to climate change, European forests are expected to shift towards mixed stands, reducing softwood availability. As the wood-based panel industry relies heavily on softwoods, changes in raw material supply may affect adhesive bonding—an essential factor in panel production. This study investigates the bondability of eight wood species (beech, birch, oak, poplar, Douglas fir, larch, pine and spruce) using four adhesives commonly applied in panel manufacturing: polymeric methylene diphenyl diisocyanate (pMDI), modified MDI and two melamine-urea-formaldehyde (MUF) adhesives. Bond strength development was evaluated using the Automated Bonding Evaluation System (ABES). Results were modelled with the Hill function to extract kinetic parameters, and microscopy was used to assess adhesive distribution and bond line failure. Among the adhesives, pMDI showed the highest sensitivity to species variation, while modified MDI was less species dependent. MUF1 showed the most consistent performance and outperformed MUF2 in bond strength development and final strength, likely due to its higher formaldehyde-to-amino group ratio. Beech bonded with pMDI required increased pressing pressure, while larch exhibited the slowest strength development with all adhesives except MUF1. pMDI achieved the highest final strengths, especially with diffuse-porous species. Good compatibility was observed between pine and pMDI, while oak heartwood bonded nearly twice as fast as sapwood when using pMDI. Kinetic modelling revealed distinct curing profiles: MUF adhesives followed a sigmoidal trend, whereas isocyanates showed a hyperbolic pattern. ABES proved effective for evaluating bonding behaviour, though limitations such as adhesive squeeze-out and moisture variation must be considered when translating results to industrial applications.

由于气候变化，预计欧洲森林将转向混交林，减少软木的可用性。由于人造板行业严重依赖软木，原材料供应的变化可能会影响粘合剂粘合，而粘合剂粘合是人造板生产的重要因素。本研究研究了八种木材（山毛榉、桦树、橡树、杨树、花旗松、落叶松、松树和云杉）使用四种板材制造中常用的粘合剂：聚亚甲基二苯基二异氰酸酯（pMDI）、改性MDI和两种三聚氰胺脲醛（MUF）粘合剂的粘合性。使用自动粘结评价系统（ABES）对粘结强度发展进行评价。结果用Hill函数建模以提取动力学参数，并使用显微镜评估粘合剂分布和粘合线失效。胶粘剂中，pMDI对物种变异的敏感性最高，而改性MDI对物种的依赖性较小。MUF1表现出最稳定的性能，并且在键强度发展和最终强度方面优于MUF2，这可能是由于其较高的甲醛与氨基比。与pMDI结合的山毛榉需要增加压力，而落叶松在除MUF1以外的所有胶粘剂上的强度发展最慢。pMDI达到了最高的最终强度，特别是扩散多孔材料。松木与pMDI之间具有良好的相容性，而使用pMDI时，橡木心材的粘合速度几乎是边材的两倍。动力学模型揭示了不同的固化特征：MUF胶粘剂遵循s型趋势，而异氰酸酯则呈现双曲线模式。尽管在将结果转化为工业应用时必须考虑粘合剂挤出和水分变化等限制，但ABES被证明是评估粘合行为的有效方法。

{"title":"Evaluation of bondability of different wood species using adhesives for wood-based panels","authors":"Andrej Fašalek , Lukas Malzl , Johannes Konnerth , Hendrikus W.G. van Herwijnen , Jan Stroobants , Johann Moser , Wolfgang Kantner , Christoph Gabler , Maximilian Pramreiter","doi":"10.1016/j.ijadhadh.2025.104230","DOIUrl":"10.1016/j.ijadhadh.2025.104230","url":null,"abstract":"<div><div>Due to climate change, European forests are expected to shift towards mixed stands, reducing softwood availability. As the wood-based panel industry relies heavily on softwoods, changes in raw material supply may affect adhesive bonding—an essential factor in panel production. This study investigates the bondability of eight wood species (beech, birch, oak, poplar, Douglas fir, larch, pine and spruce) using four adhesives commonly applied in panel manufacturing: polymeric methylene diphenyl diisocyanate (pMDI), modified MDI and two melamine-urea-formaldehyde (MUF) adhesives. Bond strength development was evaluated using the Automated Bonding Evaluation System (ABES). Results were modelled with the Hill function to extract kinetic parameters, and microscopy was used to assess adhesive distribution and bond line failure. Among the adhesives, pMDI showed the highest sensitivity to species variation, while modified MDI was less species dependent. MUF1 showed the most consistent performance and outperformed MUF2 in bond strength development and final strength, likely due to its higher formaldehyde-to-amino group ratio. Beech bonded with pMDI required increased pressing pressure, while larch exhibited the slowest strength development with all adhesives except MUF1. pMDI achieved the highest final strengths, especially with diffuse-porous species. Good compatibility was observed between pine and pMDI, while oak heartwood bonded nearly twice as fast as sapwood when using pMDI. Kinetic modelling revealed distinct curing profiles: MUF adhesives followed a sigmoidal trend, whereas isocyanates showed a hyperbolic pattern. ABES proved effective for evaluating bonding behaviour, though limitations such as adhesive squeeze-out and moisture variation must be considered when translating results to industrial applications.</div></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"146 ","pages":"Article 104230"},"PeriodicalIF":3.5,"publicationDate":"2025-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145787914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comprehensive experimental and molecular-dynamics studies of a secondary bonded epoxy–epoxy joint: Towards dominant adhesion mechanism ensuring integrity of structural composite joints 环氧-环氧二次粘结接头的综合实验和分子动力学研究：探讨保证复合材料结构接头完整性的主要粘结机制

IF 3.5 3区材料科学 Q2 ENGINEERING, CHEMICAL

International Journal of Adhesion and Adhesives

Pub Date : 2025-11-25 DOI: 10.1016/j.ijadhadh.2025.104229

Koichi Hasegawa , Noriko Yamazaki , Toshiaki Miura , Yukihiro Shimoi , Takashi Nagoshi , Go Fujii , Kiyoka Takagi

The physical and chemical structures and fracture behaviour of a secondary bonded interface between epoxy/amine resin systems representative of aerospace composite matrices and structural adhesives are investigated to explore the dominant adhesion mechanism. The comprehensive investigation includes near infrared (NIR) and transmission electron microscopy energy-dispersive X-ray (TEM-EDX) spectroscopies, mechanical testing, and molecular dynamics (MD) simulations. Chemical analysis via TEM-EDX spectroscopy showed that the interdiffusion thickness between the adhesive molecules and the cured substrate resin was less than 30 nm, indicating its minor contribution to the adhesion. The formation of covalent bonds at the interface was reasonably assumed based on NIR measurement results which revealed at least 10 % of epoxides/amines in the cured substrate remained unreacted. Incorporation of the experimental findings into MD models of the bond interface enabled fair comparison of the mechanical testing and simulations, allowing discussion on the translation of MD-predicted properties into those measurable in macroscales. This led to an argument that the absorbed energy in a tensile-loaded MD model can be used to qualitatively assess the macroscale fracture energy of the corresponding bonded joint. The absence of interfacial covalent bonds combined with moisture absorption caused more than 90 % decrease in the MD-computed energy absorption, implying significant reduction in the fracture energy of the corresponding macroscale joint. Despite the potential effects of additives or fillers in practical resin formulations, the present work suggests that interfacial covalent bonds can play a critical role in ensuring the integrity of composite bonded joints.

研究了以航空航天复合材料为代表的环氧/胺树脂体系与结构胶粘剂之间的二次键合界面的物理化学结构和断裂行为，探讨了其主要的键合机制。全面的研究包括近红外（NIR）和透射电子显微镜能量色散x射线（TEM-EDX）光谱，力学测试和分子动力学（MD）模拟。TEM-EDX光谱化学分析表明，胶粘剂分子与固化基体树脂之间的互扩散厚度小于30 nm，表明其对胶粘剂的粘附作用较小。根据近红外测量结果，至少有10%的环氧化物/胺在固化的基体中未反应，可以合理地假设在界面处形成共价键。将实验结果结合到键界面的MD模型中，可以对力学测试和模拟进行公平的比较，从而可以讨论将MD预测的性质转化为宏观尺度上可测量的性质。这导致了一种观点，即在拉伸加载的MD模型中吸收的能量可以用来定性地评估相应连接节点的宏观断裂能。界面共价键的缺失加上吸湿导致md计算的吸能降低90%以上，这意味着相应宏观尺度节理的断裂能显著降低。尽管添加剂或填料在实际树脂配方中有潜在的影响，但目前的工作表明，界面共价键可以在确保复合材料粘合接头的完整性方面发挥关键作用。

{"title":"Comprehensive experimental and molecular-dynamics studies of a secondary bonded epoxy–epoxy joint: Towards dominant adhesion mechanism ensuring integrity of structural composite joints","authors":"Koichi Hasegawa , Noriko Yamazaki , Toshiaki Miura , Yukihiro Shimoi , Takashi Nagoshi , Go Fujii , Kiyoka Takagi","doi":"10.1016/j.ijadhadh.2025.104229","DOIUrl":"10.1016/j.ijadhadh.2025.104229","url":null,"abstract":"<div><div>The physical and chemical structures and fracture behaviour of a secondary bonded interface between epoxy/amine resin systems representative of aerospace composite matrices and structural adhesives are investigated to explore the dominant adhesion mechanism. The comprehensive investigation includes near infrared (NIR) and transmission electron microscopy energy-dispersive X-ray (TEM-EDX) spectroscopies, mechanical testing, and molecular dynamics (MD) simulations. Chemical analysis via TEM-EDX spectroscopy showed that the interdiffusion thickness between the adhesive molecules and the cured substrate resin was less than 30 nm, indicating its minor contribution to the adhesion. The formation of covalent bonds at the interface was reasonably assumed based on NIR measurement results which revealed at least 10 % of epoxides/amines in the cured substrate remained unreacted. Incorporation of the experimental findings into MD models of the bond interface enabled fair comparison of the mechanical testing and simulations, allowing discussion on the translation of MD-predicted properties into those measurable in macroscales. This led to an argument that the absorbed energy in a tensile-loaded MD model can be used to qualitatively assess the macroscale fracture energy of the corresponding bonded joint. The absence of interfacial covalent bonds combined with moisture absorption caused more than 90 % decrease in the MD-computed energy absorption, implying significant reduction in the fracture energy of the corresponding macroscale joint. Despite the potential effects of additives or fillers in practical resin formulations, the present work suggests that interfacial covalent bonds can play a critical role in ensuring the integrity of composite bonded joints.</div></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"145 ","pages":"Article 104229"},"PeriodicalIF":3.5,"publicationDate":"2025-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145680850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Adhesive performance for joining additively manufactured acrylonitrile butadiene styrene 加入助剂丙烯腈-丁二烯-苯乙烯的粘合性能

IF 3.5 3区材料科学 Q2 ENGINEERING, CHEMICAL

International Journal of Adhesion and Adhesives

Pub Date : 2025-11-24 DOI: 10.1016/j.ijadhadh.2025.104226

Emir Avcioglu, Mehmet Selim Demirtas

Building large components with Fused Filament Fabrication remains challenging due to limited build plate dimensions; segmentation and adhesive bonding is common, yet optimal adhesives and printing parameters require study. This work evaluates joining strategies for acrylonitrile butadiene styrene (ABS) using commercial epoxy and cyanoacrylate, pure acetone welding, and ABS-acetone blends at 5, 10, and 15 g per 50 mL. Single lap joints conforming to ASTM D3163 were prepared with line and concentric infill. Tensile tests measured tensile strength, elongation, and energy per bonded area, while microscopy and Fourier transform infrared spectroscopy assessed interfacial morphology and chemical change. Tensile tests revealed that all solvent-based joining strategies significantly outperformed commercial epoxy and cyanoacrylate adhesives, with the ABS-acetone blends even surpassing the strength of the monolithic specimens. The optimal formulation of 10 g ABS per 50 mL acetone maximized joint strength at 14.7 MPa, a 75 % improvement over the 8.4 MPa achieved by cyanoacrylate. Line infill patterns consistently delivered higher strength, attributed to raster alignment with shear and increased contact, while concentric infill provided greater elongation through greater local compliance and shear yielding. Microscopy and spectroscopy confirmed the mechanism as solvent-driven chain interdiffusion, which created a graded, conformal interphase, in contrast to the sharp boundaries and voids observed with traditional adhesives. These results demonstrate that the proposed up-cycled adhesive blend enables the fabrication of large-scale ABS components with joint strength exceeding that of the base material.

由于构建板尺寸有限，使用熔丝制造构建大型组件仍然具有挑战性；分割和胶粘剂粘合是常见的，但最佳的胶粘剂和印刷参数需要研究。本研究评估了丙烯腈-丁二烯-苯乙烯（ABS）的连接策略，分别使用商用环氧树脂和氰基丙烯酸酯、纯丙酮焊接和ABS-丙酮混合物，分别为5、10和15 g / 50 mL。采用线填充和同轴填充制备符合ASTM D3163的单搭接接头。拉伸测试测量拉伸强度、伸长率和每个键合区域的能量，而显微镜和傅立叶变换红外光谱评估界面形态和化学变化。拉伸试验表明，所有溶剂型连接策略都明显优于商用环氧树脂和氰基丙烯酸酯粘合剂，abs -丙酮混合物的强度甚至超过了整体试件的强度。每50 mL丙酮10 g ABS的最佳配方使接头强度达到14.7 MPa，比氰基丙烯酸酯的8.4 MPa提高了75%。线形填充模式始终提供更高的强度，这归功于光栅对齐与剪切和增加的接触，而同心填充通过更大的局部顺应性和剪切屈服提供了更大的伸长率。显微镜和光谱学证实了其机制是溶剂驱动的链相互扩散，形成了渐变的保形界面，与传统粘合剂观察到的尖锐边界和空洞形成了对比。这些结果表明，所提出的上循环共混胶能够制造出连接强度超过基材的大型ABS部件。

{"title":"Adhesive performance for joining additively manufactured acrylonitrile butadiene styrene","authors":"Emir Avcioglu, Mehmet Selim Demirtas","doi":"10.1016/j.ijadhadh.2025.104226","DOIUrl":"10.1016/j.ijadhadh.2025.104226","url":null,"abstract":"<div><div>Building large components with Fused Filament Fabrication remains challenging due to limited build plate dimensions; segmentation and adhesive bonding is common, yet optimal adhesives and printing parameters require study. This work evaluates joining strategies for acrylonitrile butadiene styrene (ABS) using commercial epoxy and cyanoacrylate, pure acetone welding, and ABS-acetone blends at 5, 10, and 15 g per 50 mL. Single lap joints conforming to ASTM D3163 were prepared with line and concentric infill. Tensile tests measured tensile strength, elongation, and energy per bonded area, while microscopy and Fourier transform infrared spectroscopy assessed interfacial morphology and chemical change. Tensile tests revealed that all solvent-based joining strategies significantly outperformed commercial epoxy and cyanoacrylate adhesives, with the ABS-acetone blends even surpassing the strength of the monolithic specimens. The optimal formulation of 10 g ABS per 50 mL acetone maximized joint strength at 14.7 MPa, a 75 % improvement over the 8.4 MPa achieved by cyanoacrylate. Line infill patterns consistently delivered higher strength, attributed to raster alignment with shear and increased contact, while concentric infill provided greater elongation through greater local compliance and shear yielding. Microscopy and spectroscopy confirmed the mechanism as solvent-driven chain interdiffusion, which created a graded, conformal interphase, in contrast to the sharp boundaries and voids observed with traditional adhesives. These results demonstrate that the proposed up-cycled adhesive blend enables the fabrication of large-scale ABS components with joint strength exceeding that of the base material.</div></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"145 ","pages":"Article 104226"},"PeriodicalIF":3.5,"publicationDate":"2025-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145615422","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The effect of the corrosive environment on bonded joints of the load-bearing frame prototype of a sports electric vehicle with a surface cleaned by a laser beam 研究了腐蚀环境对某运动型电动汽车承重架原型机表面激光清洗后粘结接头的影响

IF 3.5 3区材料科学 Q2 ENGINEERING, CHEMICAL

International Journal of Adhesion and Adhesives

Pub Date : 2025-11-23 DOI: 10.1016/j.ijadhadh.2025.104227

Pavel Klaus, Marek Beseda, Michal Weisz, Tomáš Pawlenka, Martin Juránek, Jan Rygel

This publication investigates the influence of corrosive environments on the mechanical properties and microstructure of bonded joints made from aluminum alloy EN AW 2017A, intended for the load-bearing frame of a prototype sports electric vehicle constructed from aluminum alloy. The surface of the specimens was pre-treated using laser cleaning prior to bonding. Four specimen sets were prepared: a reference set without corrosion exposure, unprotected specimens exposed to salt spray, and two sets with protective coatings (100 μm and 200 μm thick) exposed to salt spray. The specimens underwent shear tensile strength testing and metallographic analysis to assess corrosion damage and joint integrity. The results demonstrated a significant reduction in strength for unprotected specimens exposed to the corrosive environment. The application of protective coatings markedly improved corrosion resistance and preserved higher joint strength. Microstructural analysis confirmed the extent of corrosion deterioration depending on the type of protection applied. The study emphasizes the necessity of appropriate surface treatment and protective measures for bonded joints in automotive structures to ensure long-term reliability and structural integrity.

本文研究了腐蚀环境对EN AW 2017A铝合金焊接接头的力学性能和微观结构的影响，EN AW 2017A铝合金用于一款由铝合金制成的运动型电动汽车原型承重架。在粘接前，用激光清洗对试样表面进行预处理。制备了4组样品：无腐蚀暴露的参考样品组、无保护的盐雾暴露样品组和有保护涂层（厚度分别为100 μm和200 μm）盐雾暴露样品组。试样进行了剪切拉伸强度测试和金相分析，以评估腐蚀损伤和接头完整性。结果表明，暴露在腐蚀环境中的无保护试样的强度显著降低。保护涂层的应用显著提高了接头的耐蚀性，并保持了较高的接头强度。显微结构分析证实了腐蚀恶化的程度取决于所应用的保护类型。研究强调了对汽车结构粘结接头进行适当的表面处理和防护措施的必要性，以保证结构的长期可靠性和完整性。

{"title":"The effect of the corrosive environment on bonded joints of the load-bearing frame prototype of a sports electric vehicle with a surface cleaned by a laser beam","authors":"Pavel Klaus, Marek Beseda, Michal Weisz, Tomáš Pawlenka, Martin Juránek, Jan Rygel","doi":"10.1016/j.ijadhadh.2025.104227","DOIUrl":"10.1016/j.ijadhadh.2025.104227","url":null,"abstract":"<div><div>This publication investigates the influence of corrosive environments on the mechanical properties and microstructure of bonded joints made from aluminum alloy EN AW 2017A, intended for the load-bearing frame of a prototype sports electric vehicle constructed from aluminum alloy. The surface of the specimens was pre-treated using laser cleaning prior to bonding. Four specimen sets were prepared: a reference set without corrosion exposure, unprotected specimens exposed to salt spray, and two sets with protective coatings (100 μm and 200 μm thick) exposed to salt spray. The specimens underwent shear tensile strength testing and metallographic analysis to assess corrosion damage and joint integrity. The results demonstrated a significant reduction in strength for unprotected specimens exposed to the corrosive environment. The application of protective coatings markedly improved corrosion resistance and preserved higher joint strength. Microstructural analysis confirmed the extent of corrosion deterioration depending on the type of protection applied. The study emphasizes the necessity of appropriate surface treatment and protective measures for bonded joints in automotive structures to ensure long-term reliability and structural integrity.</div></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"145 ","pages":"Article 104227"},"PeriodicalIF":3.5,"publicationDate":"2025-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145615421","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluation of the bond strength of preheated resin composite and resin cement to lithium disilicate and translucent zirconia before and after aging 预加热树脂复合材料和树脂水泥对二硅酸锂和半透明氧化锆老化前后粘结强度的评价

IF 3.5 3区材料科学 Q2 ENGINEERING, CHEMICAL

International Journal of Adhesion and Adhesives

Pub Date : 2025-11-22 DOI: 10.1016/j.ijadhadh.2025.104221

Julia Saccol Freitas , Gabriela Carrão Aragonez , Fernando Zurlo Dellazzana , Emanuela Pessota Hanauer , Luiz Felipe Valandro , Marília Pivetta Rippe , Natália de Freitas Daudt , Liliana Gressler May

The microshear bond strength (μSBS) was evaluated with and without aging to compare preheated resin composite (PRC) and resin cement (RC) for bonding lithium disilicate (LD) and translucent zirconia (Zr). LD and Zr samples were divided into two groups (PRC and RC) and further subdivided into ‘baseline’ and ‘aging’ conditions. After ceramic surface treatment, cylinders of PRC and RC were applied using starch matrices (height = 1 mm; internal diameter = 1.2 mm; n = 11 cylinders per group). The μSBS test was performed using a universal testing machine with the wire-loop method at a speed of 1 mm/min. Statistical analysis included only adhesive failures. The results indicated that ceramic material, cementing agent and aging condition significantly influenced bond strength (p < 0.05). Baseline bond strength varied across groups, with RC yielding the highest values for both Zr and LD ceramics. Aging reduced bond strength in almost all groups, except for the Zr-RC group, with the greatest reduction observed in the LD-PRC group. In conclusion, RC demonstrated better μSBS when compared to PRC, regardless of the ceramic type, and aging condition. This suggests that RC offer more durability and reliability for long-term adhesion than PRC.

采用微剪切强度（μSBS）评价了经过和未经过时效处理的树脂复合材料（PRC）和树脂水泥（RC）对二硅酸锂（LD）和半透明氧化锆（Zr）的粘接性能。LD和Zr样品分为两组（PRC和RC），并进一步细分为“基线”和“老化”条件。陶瓷表面处理后，将PRC和RC的圆柱体应用淀粉基质（高度= 1mm，内径= 1.2 mm, n = 11个圆柱体/组）。μSBS试验采用万能试验机，采用线环法，速度为1 mm/min。统计分析只包括粘接失效。结果表明，陶瓷材料、胶结剂和老化条件对粘结强度有显著影响（p < 0.05）。基线结合强度在不同组之间变化，RC在Zr和LD陶瓷中均产生最大值。除Zr-RC组外，老化几乎降低了所有组的粘结强度，其中LD-PRC组的粘结强度降低幅度最大。综上所述，无论陶瓷类型和时效条件如何，RC都比PRC表现出更好的μSBS。这表明RC比PRC具有更强的耐久性和可靠性。

{"title":"Evaluation of the bond strength of preheated resin composite and resin cement to lithium disilicate and translucent zirconia before and after aging","authors":"Julia Saccol Freitas , Gabriela Carrão Aragonez , Fernando Zurlo Dellazzana , Emanuela Pessota Hanauer , Luiz Felipe Valandro , Marília Pivetta Rippe , Natália de Freitas Daudt , Liliana Gressler May","doi":"10.1016/j.ijadhadh.2025.104221","DOIUrl":"10.1016/j.ijadhadh.2025.104221","url":null,"abstract":"<div><div>The microshear bond strength (μSBS) was evaluated with and without aging to compare preheated resin composite (PRC) and resin cement (RC) for bonding lithium disilicate (LD) and translucent zirconia (Zr). LD and Zr samples were divided into two groups (PRC and RC) and further subdivided into ‘baseline’ and ‘aging’ conditions. After ceramic surface treatment, cylinders of PRC and RC were applied using starch matrices (height = 1 mm; internal diameter = 1.2 mm; n = 11 cylinders per group). The μSBS test was performed using a universal testing machine with the wire-loop method at a speed of 1 mm/min. Statistical analysis included only adhesive failures. The results indicated that ceramic material, cementing agent and aging condition significantly influenced bond strength (p < 0.05). Baseline bond strength varied across groups, with RC yielding the highest values for both Zr and LD ceramics. Aging reduced bond strength in almost all groups, except for the Zr-RC group, with the greatest reduction observed in the LD-PRC group. In conclusion, RC demonstrated better μSBS when compared to PRC, regardless of the ceramic type, and aging condition. This suggests that RC offer more durability and reliability for long-term adhesion than PRC.</div></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"145 ","pages":"Article 104221"},"PeriodicalIF":3.5,"publicationDate":"2025-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145577280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Corrigendum to “Investigation of the microstructure, chemical structure, and bonding interfacial properties of thermal-treated bamboo” [Int. J. Adhesion Adhes. 125 (2023) 103400] “热处理竹的微观结构、化学结构和结合界面性能的研究”的勘误[Int.]。J.胶粘剂与胶粘剂。[j]

IF 3.5 3区材料科学 Q2 ENGINEERING, CHEMICAL

International Journal of Adhesion and Adhesives

Pub Date : 2025-11-22 DOI: 10.1016/j.ijadhadh.2025.104223

Xinzhou Wang , Yan Yao , Xuqin Xie , Zhurun Yuan , Wanzhao Li , Tiancheng Yuan , Yaqian Huang , Yanjun Li

引用次数: 0

Durability of biomineral-reinforced biopolymer adhesives following humidity and temperature exposures 湿度和温度暴露下生物矿物增强生物聚合物粘合剂的耐久性

IF 3.5 3区材料科学 Q2 ENGINEERING, CHEMICAL

International Journal of Adhesion and Adhesives

Pub Date : 2025-11-21 DOI: 10.1016/j.ijadhadh.2025.104225

Sobia Anjum , Kaylin Clark , Ethan Viles , Chelsea M. Heveran , Robin Gerlach

Conventional adhesives often use fossil fuel-based raw materials and release volatile organic compounds harmful to human health. Biobased adhesives may be eco-friendly and non-toxic alternatives, but their use has been limited in part because of poor mechanical performance and water resistance. Recent work demonstrates that precipitation of calcium carbonate in association with ureolytic bacteria or plant-based ureases increases the adhesive strength of biopolymer adhesives. However, the water resistance and thermal stability characteristics of these biomineral-reinforced biopolymer adhesives have not yet been evaluated. In this work, we tested the performance of biomineral-reinforced adhesives after moisture and a range of temperature exposures. We found that the adhesives retain their adhesive strength from below freezing to room temperatures and after prolonged exposure to moderate (50 % relative) humidity. The structural integrity of the adhesives is compromised at high humidity or temperature exposures due to solubility and limited thermal stability of the organic biopolymers. These findings open opportunities for future improvements in the design of biomineral-reinforced adhesives.

传统的胶粘剂通常使用化石燃料原料，并释放出对人体健康有害的挥发性有机化合物。生物基粘合剂可能是环保和无毒的替代品，但其使用受到限制，部分原因是机械性能差和耐水性差。最近的研究表明，碳酸钙的沉淀与溶尿细菌或植物性脲有关，可增加生物聚合物粘合剂的粘附强度。然而，这些生物矿物增强生物聚合物胶粘剂的耐水性和热稳定性尚未得到评价。在这项工作中，我们测试了生物矿物增强胶粘剂在潮湿和一系列温度暴露后的性能。我们发现，从冰点以下到室温，在长时间暴露于中等（50%相对）湿度后，粘合剂保持其粘合强度。由于有机生物聚合物的溶解度和有限的热稳定性，粘合剂的结构完整性在高湿度或高温度暴露下受到损害。这些发现为未来改进生物矿物增强胶粘剂的设计提供了机会。

{"title":"Durability of biomineral-reinforced biopolymer adhesives following humidity and temperature exposures","authors":"Sobia Anjum , Kaylin Clark , Ethan Viles , Chelsea M. Heveran , Robin Gerlach","doi":"10.1016/j.ijadhadh.2025.104225","DOIUrl":"10.1016/j.ijadhadh.2025.104225","url":null,"abstract":"<div><div>Conventional adhesives often use fossil fuel-based raw materials and release volatile organic compounds harmful to human health. Biobased adhesives may be eco-friendly and non-toxic alternatives, but their use has been limited in part because of poor mechanical performance and water resistance. Recent work demonstrates that precipitation of calcium carbonate in association with ureolytic bacteria or plant-based ureases increases the adhesive strength of biopolymer adhesives. However, the water resistance and thermal stability characteristics of these biomineral-reinforced biopolymer adhesives have not yet been evaluated. In this work, we tested the performance of biomineral-reinforced adhesives after moisture and a range of temperature exposures. We found that the adhesives retain their adhesive strength from below freezing to room temperatures and after prolonged exposure to moderate (50 % relative) humidity. The structural integrity of the adhesives is compromised at high humidity or temperature exposures due to solubility and limited thermal stability of the organic biopolymers. These findings open opportunities for future improvements in the design of biomineral-reinforced adhesives.</div></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"145 ","pages":"Article 104225"},"PeriodicalIF":3.5,"publicationDate":"2025-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145680851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of thin silicone film contamination and laser treatment on adhesive bonds 薄硅膜污染和激光处理对粘接的影响

IF 3.5 3区材料科学 Q2 ENGINEERING, CHEMICAL

International Journal of Adhesion and Adhesives

Pub Date : 2025-11-21 DOI: 10.1016/j.ijadhadh.2025.104228

Julian Naser , George Sarau , Benedikt C. Wolz , Jan Wrege , Silke Christiansen , Michael Schmidt

Almost all industries depend on reliable adhesive bonds. Adhesive bonding is a “special process”, where non-destructive in-line inspections of the sample are not practicable. To ensure reliability, profound knowledge of the mechanisms of the adhesion and a proper understanding of the adhesive process is crucial. In this paper the impact of different thin silicone films and laser cleaning processes on the bond quality is assessed. Therefore, aluminum samples are contaminated with various thin silicone films and the laser cleaning process is applied. Afterwards the adhesive is dispensed, cured and the shear strength is measured. The results are interpreted based on five hypotheses that set the laser effect on the morphology change in relation to the laser cleaning effect. The transition zone between adhesive and samples is investigated using cross sections and the non-destructive imaging technique 3D-X-ray microscopy (XRM) scans. Furthermore, the surface free energy (SFE) and the surface roughness of the samples are measured and correlated with the shear strength. Our data show that the quality of adhesive bonding can be significantly improved through the interplay between various surface parameters and treatments.

几乎所有的工业都依赖于可靠的粘合剂。粘接是一种“特殊工艺”，对样品进行无损在线检测是不可行的。为了确保可靠性，对粘合机理的深刻了解和对粘合过程的正确理解至关重要。本文研究了不同的有机硅薄膜和激光清洗工艺对粘接质量的影响。因此，铝样品被各种薄硅膜污染，采用激光清洗工艺。然后涂胶、固化并测定抗剪强度。结果基于五个假设，将激光效应对形貌变化的影响与激光清洗效果的关系进行了解释。使用截面和非破坏性成像技术3d - x射线显微镜（XRM）扫描研究了粘合剂和样品之间的过渡区。测定了试样的表面自由能（SFE）和表面粗糙度与抗剪强度的关系。我们的数据表明，通过各种表面参数和处理之间的相互作用，可以显著提高胶粘剂的粘合质量。

{"title":"Impact of thin silicone film contamination and laser treatment on adhesive bonds","authors":"Julian Naser , George Sarau , Benedikt C. Wolz , Jan Wrege , Silke Christiansen , Michael Schmidt","doi":"10.1016/j.ijadhadh.2025.104228","DOIUrl":"10.1016/j.ijadhadh.2025.104228","url":null,"abstract":"<div><div>Almost all industries depend on reliable adhesive bonds. Adhesive bonding is a “special process”, where non-destructive in-line inspections of the sample are not practicable. To ensure reliability, profound knowledge of the mechanisms of the adhesion and a proper understanding of the adhesive process is crucial. In this paper the impact of different thin silicone films and laser cleaning processes on the bond quality is assessed. Therefore, aluminum samples are contaminated with various thin silicone films and the laser cleaning process is applied. Afterwards the adhesive is dispensed, cured and the shear strength is measured. The results are interpreted based on five hypotheses that set the laser effect on the morphology change in relation to the laser cleaning effect. The transition zone between adhesive and samples is investigated using cross sections and the non-destructive imaging technique 3D-X-ray microscopy (XRM) scans. Furthermore, the surface free energy (SFE) and the surface roughness of the samples are measured and correlated with the shear strength. Our data show that the quality of adhesive bonding can be significantly improved through the interplay between various surface parameters and treatments.</div></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"145 ","pages":"Article 104228"},"PeriodicalIF":3.5,"publicationDate":"2025-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145615425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of montmorillonite on the structure and mechanical properties of epoxy coatings 蒙脱土对环氧涂料结构和力学性能的影响

IF 3.5 3区材料科学 Q2 ENGINEERING, CHEMICAL

International Journal of Adhesion and Adhesives

Pub Date : 2025-11-20 DOI: 10.1016/j.ijadhadh.2025.104210

Izabela Miturska-Barańska, Anna Rudawska

Epoxy coatings are widely used due to their strong adhesion and mechanical performance, yet they often suffer from brittleness and limited durability. The effect of montmorillonite (MMT, NanoBent ZR2) on the mechanical and adhesion performance of epoxy coatings cured with polyamide (PAC) and amine (IDA) agents was systematically investigated. Unlike previous studies focusing solely on filler addition, this work examines the combined influence of curing agent chemistry and thermal conditioning. The incorporation of 3 wt% MMT increased tensile strength and bending strength of PAC-based coatings by up to 15 % and 20 %, respectively, after conditioning at 50 °C. In contrast, IDA-based systems showed limited improvement and higher brittleness. Conditioning temperature strongly affected performance: specimens cured at 50 °C exhibited more than 40 % higher tensile strength compared with those conditioned at 0 °C. PAC-based coatings also demonstrated superior adhesion (ASTM 5B rating) and cohesive failure modes, while IDA-based coatings frequently failed adhesively. These results highlight that optimizing both curing chemistry and nanofiller content yields epoxy coatings with enhanced mechanical strength and interfacial durability.

环氧涂料因其良好的附着力和机械性能而得到广泛应用，但其易碎性和耐久性有限。系统研究了蒙脱土（MMT, NanoBent ZR2）对聚酰胺（PAC）和胺（IDA）固化环氧涂料的力学性能和粘附性能的影响。不像以前的研究只关注填料的添加，这项工作考察了固化剂化学和热调节的综合影响。在50°C条件下，加入3wt %的MMT可使pac基涂层的拉伸强度和弯曲强度分别提高15%和20%。相比之下，基于ida的系统表现出有限的改进和更高的脆性。调节温度对性能影响很大：在50°C下固化的试件，其抗拉强度比在0°C下固化的试件高出40%以上。pac基涂料也表现出优异的附着力（ASTM 5B等级）和粘接失效模式，而ida基涂料则经常出现粘接失效。这些结果表明，优化固化化学和纳米填料含量可以提高环氧涂层的机械强度和界面耐久性。

{"title":"Influence of montmorillonite on the structure and mechanical properties of epoxy coatings","authors":"Izabela Miturska-Barańska, Anna Rudawska","doi":"10.1016/j.ijadhadh.2025.104210","DOIUrl":"10.1016/j.ijadhadh.2025.104210","url":null,"abstract":"<div><div>Epoxy coatings are widely used due to their strong adhesion and mechanical performance, yet they often suffer from brittleness and limited durability. The effect of montmorillonite (MMT, NanoBent ZR2) on the mechanical and adhesion performance of epoxy coatings cured with polyamide (PAC) and amine (IDA) agents was systematically investigated. Unlike previous studies focusing solely on filler addition, this work examines the combined influence of curing agent chemistry and thermal conditioning. The incorporation of 3 wt% MMT increased tensile strength and bending strength of PAC-based coatings by up to 15 % and 20 %, respectively, after conditioning at 50 °C. In contrast, IDA-based systems showed limited improvement and higher brittleness. Conditioning temperature strongly affected performance: specimens cured at 50 °C exhibited more than 40 % higher tensile strength compared with those conditioned at 0 °C. PAC-based coatings also demonstrated superior adhesion (ASTM <span><span>5B</span><svg><path></path></svg></span> rating) and cohesive failure modes, while IDA-based coatings frequently failed adhesively. These results highlight that optimizing both curing chemistry and nanofiller content yields epoxy coatings with enhanced mechanical strength and interfacial durability.</div></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"145 ","pages":"Article 104210"},"PeriodicalIF":3.5,"publicationDate":"2025-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145615424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of different cementation protocols on the bond strength of glass fiber posts to root dentin: An in vitro study with quantitative and qualitative analyses 不同固接方式对玻璃纤维桩与牙根质结合强度影响的体外定量和定性研究

IF 3.5 3区材料科学 Q2 ENGINEERING, CHEMICAL

International Journal of Adhesion and Adhesives

Pub Date : 2025-11-19 DOI: 10.1016/j.ijadhadh.2025.104205

Suellen Tayenne Pedrosa Pinto , Helena de Paiva Memento Machado , Marcela de Come Ramos , Mariana Bena Gelio , Carlos Rangel de Moura Oliveira , Milton Carlos Kuga , Mário Tanomaru-Filho , José Maurício dos Santos Nunes Reis

This in vitro study evaluated the bond strength and adhesive interface of glass fiber posts luted to root dentin using different luting materials, adhesive systems and acid etching protocols. Sixty bovine incisors were endodontically treated and randomly divided into six groups (n = 10) according to the glass fiber posts cementation protocol and materials: RDC (Rebilda DC, Voco), RDC-AC (Rebilda DC with phosphoric acid etching), ACC (Allcem Core, FGM), ACC-AC (Allcem Core with phosphoric acid etching), RU (RelyX Ultimate, 3M ESPE), and RU-AC (RelyX Ultimate with phosphoric acid etching). After cementation of the posts (Whitepost DC1), the specimens were thermocycled (10,000 cycles; 5–55 °C; 30 s dwell time) and sectioned into cervical, middle, and apical thirds. Push-out bond strength tests were performed (EMIC DL2000; 2.0 kN load cell; 0.5 mm/min), along with confocal laser scanning microscopy to assess the adhesive interface. Failure modes were classified under stereomicroscopy (20 × ), and representative images were obtained via scanning electron microscopy (SEM). Data were analyzed by 3-way ANOVA and Tukey's HSD post-hoc test (α = 0.05). The cervical third exhibited the highest bond strength values (p < 0.05), irrespective of the luting material or dentin adhesive protocol. The RDC-AC group presented significantly higher values than RDC, ACC, and ACC-AC, while being statistically similar (p > 0.05) to RU and RU-AC. Adhesive failure between the cement and dentin was the most prevalent, regardless of the root third or cementation protocol. Overall, acid etching of intraradicular dentin positively influenced the adhesion of glass fiber posts.

Clinical significance

Acid etching of root dentin may enhance the bonding performance of glass fiber posts, contributing to the long-term success of adhesive restorations in severely compromised teeth.

采用不同的粘接材料、粘接体系和酸蚀方案，对玻璃纤维桩与牙根的粘接强度和粘接界面进行了体外研究。对60只牛门牙进行根管治疗，根据玻璃纤维桩的固定方案和材料随机分为6组（n = 10）： RDC （Rebilda DC, Voco）、RDC- ac （Rebilda DC，磷酸刻蚀）、ACC （Allcem Core， FGM）、ACC- ac （Allcem Core，磷酸刻蚀）、RU （RelyX Ultimate, 3M ESPE）和RU- ac （RelyX Ultimate，磷酸刻蚀）。骨柱（Whitepost DC1）胶结后，对标本进行热循环（10,000次，5-55°C， 30 s停留时间），并切片为颈椎，中部和根尖三分之一。进行了推出粘结强度测试（EMIC DL2000； 2.0 kN称重传感器；0.5 mm/min），并使用共聚焦激光扫描显微镜来评估粘合剂界面。在体视显微镜（20 ×）下对失效模式进行分类，并通过扫描电子显微镜（SEM）获得代表性图像。数据采用3-way方差分析和Tukey’s HSD事后检验（α = 0.05）。无论使用何种材料或牙本质粘接剂，颈椎第三节的粘接剂强度值最高（p < 0.05）。RDC- ac组显著高于RDC、ACC、ACC- ac，与RU、RU- ac差异有统计学意义（p > 0.05）。无论采用何种固接方式，固接剂与牙本质之间的粘接失败最为普遍。总的来说，根状牙本质的酸蚀对玻璃纤维桩的粘附有积极的影响。临床意义根牙本质酸蚀可提高玻璃纤维桩的粘接性能，有助于重度牙体粘接修复的长期成功。

{"title":"Influence of different cementation protocols on the bond strength of glass fiber posts to root dentin: An in vitro study with quantitative and qualitative analyses","authors":"Suellen Tayenne Pedrosa Pinto , Helena de Paiva Memento Machado , Marcela de Come Ramos , Mariana Bena Gelio , Carlos Rangel de Moura Oliveira , Milton Carlos Kuga , Mário Tanomaru-Filho , José Maurício dos Santos Nunes Reis","doi":"10.1016/j.ijadhadh.2025.104205","DOIUrl":"10.1016/j.ijadhadh.2025.104205","url":null,"abstract":"<div><div>This in vitro study evaluated the bond strength and adhesive interface of glass fiber posts luted to root dentin using different luting materials, adhesive systems and acid etching protocols. Sixty bovine incisors were endodontically treated and randomly divided into six groups (n = 10) according to the glass fiber posts cementation protocol and materials: <em>RDC</em> (Rebilda DC, Voco), <em>RDC-AC</em> (Rebilda DC with phosphoric acid etching), <em>ACC</em> (Allcem Core, FGM), <em>ACC-AC</em> (Allcem Core with phosphoric acid etching), <em>RU</em> (RelyX Ultimate, 3M ESPE), and <em>RU-AC</em> (RelyX Ultimate with phosphoric acid etching). After cementation of the posts (Whitepost DC1), the specimens were thermocycled (10,000 cycles; 5–55 °C; 30 s dwell time) and sectioned into cervical, middle, and apical thirds. Push-out bond strength tests were performed (EMIC DL2000; 2.0 kN load cell; 0.5 mm/min), along with confocal laser scanning microscopy to assess the adhesive interface. Failure modes were classified under stereomicroscopy (20 × ), and representative images were obtained via scanning electron microscopy (SEM). Data were analyzed by 3-way ANOVA and Tukey's HSD post-hoc test (α = 0.05). The cervical third exhibited the highest bond strength values (p < 0.05), irrespective of the luting material or dentin adhesive protocol. The <em>RDC-AC</em> group presented significantly higher values than <em>RDC</em>, <em>ACC</em>, and <em>ACC-AC</em>, while being statistically similar (p > 0.05) to <em>RU</em> and <em>RU-AC</em>. Adhesive failure between the cement and dentin was the most prevalent, regardless of the root third or cementation protocol. Overall, acid etching of intraradicular dentin positively influenced the adhesion of glass fiber posts.</div></div><div><h3>Clinical significance</h3><div>Acid etching of root dentin may enhance the bonding performance of glass fiber posts, contributing to the long-term success of adhesive restorations in severely compromised teeth.</div></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"145 ","pages":"Article 104205"},"PeriodicalIF":3.5,"publicationDate":"2025-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145577278","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0