Pub Date : 2025-12-02DOI: 10.1016/j.ijadhadh.2025.104244
Nandkishore Thombare , A. Mohanasundaram , Kewal Krishan Sharma
This study reports the development of eco-friendly, non-drying adhesives for sticky insect traps from natural lac resin. The lac was chemically modified to bleached hydrolyzed lac (HL), which served as the adhesive base, and this synthesis was optimized through alkaline hydrolysis and in situ bleaching. The HL was blended with co-formulants, including dewaxed-decolorized lac (DDL), castor oil, essential oils (basil and mustard), and diluents, to enhance tackiness and insect attraction. The formulations were evaluated for viscosity, acid value, FTIR, and adhesive strength, and compared with the commercial glue, Chipku. Field trials in mustard and okra using yellow cylindrical traps showed that HL-DDL formulations captured 254–263 sucking pests per trap (aphids, thrips, whiteflies) with 84.6–86.2 % efficacy compared to Chipku. The resin-based glues were odorless, safe, and suitable for organic farming. This is the first report on hydrolyzed lac adhesives for agricultural pest control, offering a green alternative to synthetic glues.
{"title":"Natural resin-derived adhesives for sticky insect traps: Development and field evaluation in mustard and okra","authors":"Nandkishore Thombare , A. Mohanasundaram , Kewal Krishan Sharma","doi":"10.1016/j.ijadhadh.2025.104244","DOIUrl":"10.1016/j.ijadhadh.2025.104244","url":null,"abstract":"<div><div>This study reports the development of eco-friendly, non-drying adhesives for sticky insect traps from natural lac resin. The lac was chemically modified to bleached hydrolyzed lac (HL), which served as the adhesive base, and this synthesis was optimized through alkaline hydrolysis and <em>in situ</em> bleaching. The HL was blended with co-formulants, including dewaxed-decolorized lac (DDL), castor oil, essential oils (basil and mustard), and diluents, to enhance tackiness and insect attraction. The formulations were evaluated for viscosity, acid value, FTIR, and adhesive strength, and compared with the commercial glue, <em>Chipku</em>. Field trials in mustard and okra using yellow cylindrical traps showed that HL-DDL formulations captured 254–263 sucking pests per trap (aphids, thrips, whiteflies) with 84.6–86.2 % efficacy compared to <em>Chipku</em>. The resin-based glues were odorless, safe, and suitable for organic farming. This is the first report on hydrolyzed lac adhesives for agricultural pest control, offering a green alternative to synthetic glues.</div></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"146 ","pages":"Article 104244"},"PeriodicalIF":3.5,"publicationDate":"2025-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145693184","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}
Pub Date : 2025-11-29DOI: 10.1016/j.ijadhadh.2025.104231
Matheus Orlandi Pessoa , Jorgimara de Oliveira Braga , Sérgio Leonardo Butski Soares Santos , Brunela Pereira da Silva , Vera Rosa Capelossi , Fernando Cotting
The aim of this study is to evaluate the performance of an organic coating based on epoxy resin applied to the surface of galvanized steel that was pre-treated with the hybrid silane film (TEOS + GPTMS) incorporated with garlic peel powder (Allium sativum L.). Corrosion resistance was evaluated using electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization in NaCl 3.5 wt %. The cross-section SEM images revealed the adhesion of the substrate/coating and silane/epoxy interfaces. Test results indicated that the film modified with the natural inhibitor improved anticorrosive properties compared to the film without silane or natural green inhibitors. It can be concluded in EIS measurements that the complete pretrearment applied to grinded exhibits after 90 days of immersion the highest impedance modulus in the low-frequency region (|Z|0.01Hz = 4.18 × 109 Ω cm2). Similarly, the results after the immersion of pull-off adhesion tests was impaired when complete pretreatment was not used (0.15 MPa), which is a positive result for the future application of coatings with complete pretreatment based on this silane + natural corrosion inhibitor approach (0.60 MPa).
{"title":"Evaluation of the anticorrosive effectiveness of an epoxy coating applied to galvanized steel treated with a silane hybrid film incorporating a natural corrosion inhibitor","authors":"Matheus Orlandi Pessoa , Jorgimara de Oliveira Braga , Sérgio Leonardo Butski Soares Santos , Brunela Pereira da Silva , Vera Rosa Capelossi , Fernando Cotting","doi":"10.1016/j.ijadhadh.2025.104231","DOIUrl":"10.1016/j.ijadhadh.2025.104231","url":null,"abstract":"<div><div>The aim of this study is to evaluate the performance of an organic coating based on epoxy resin applied to the surface of galvanized steel that was pre-treated with the hybrid silane film (TEOS + GPTMS) incorporated with garlic peel powder (<em>Allium sativum</em> L.). Corrosion resistance was evaluated using electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization in NaCl 3.5 wt %. The cross-section SEM images revealed the adhesion of the substrate/coating and silane/epoxy interfaces. Test results indicated that the film modified with the natural inhibitor improved anticorrosive properties compared to the film without silane or natural green inhibitors. It can be concluded in EIS measurements that the complete pretrearment applied to grinded exhibits after 90 days of immersion the highest impedance modulus in the low-frequency region (|Z|<sub>0.01</sub>Hz = 4.18 × 10<sup>9</sup> Ω cm<sup>2</sup>). Similarly, the results after the immersion of pull-off adhesion tests was impaired when complete pretreatment was not used (0.15 MPa), which is a positive result for the future application of coatings with complete pretreatment based on this silane + natural corrosion inhibitor approach (0.60 MPa).</div></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"146 ","pages":"Article 104231"},"PeriodicalIF":3.5,"publicationDate":"2025-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145693185","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}
Pub Date : 2025-11-25DOI: 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.
{"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}
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.
{"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}
Pub Date : 2025-11-24DOI: 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}
Pub Date : 2025-11-23DOI: 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}
Pub Date : 2025-11-22DOI: 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}
Pub Date : 2025-11-22DOI: 10.1016/j.ijadhadh.2025.104223
Xinzhou Wang , Yan Yao , Xuqin Xie , Zhurun Yuan , Wanzhao Li , Tiancheng Yuan , Yaqian Huang , Yanjun Li
{"title":"Corrigendum to “Investigation of the microstructure, chemical structure, and bonding interfacial properties of thermal-treated bamboo” [Int. J. Adhesion Adhes. 125 (2023) 103400]","authors":"Xinzhou Wang , Yan Yao , Xuqin Xie , Zhurun Yuan , Wanzhao Li , Tiancheng Yuan , Yaqian Huang , Yanjun Li","doi":"10.1016/j.ijadhadh.2025.104223","DOIUrl":"10.1016/j.ijadhadh.2025.104223","url":null,"abstract":"","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"145 ","pages":"Article 104223"},"PeriodicalIF":3.5,"publicationDate":"2025-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145680849","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}
Pub Date : 2025-11-21DOI: 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.
{"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}
Pub Date : 2025-11-21DOI: 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.
{"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}
扫码关注我们
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号