Composites Part A: Applied Science and Manufacturing最新文献_第10页

Energy-based modeling and experimental study on the characteristics of CFRP hole-making by the hybrid of laser and gas-waterjet with different scanning modes 基于能量的激光-气-水混合扫描模式下CFRP制孔特性建模与实验研究

IF 8.1 2区材料科学 Q1 ENGINEERING, MANUFACTURING

Composites Part A: Applied Science and Manufacturing

Pub Date : 2025-12-11 DOI: 10.1016/j.compositesa.2025.109498

Boshen Yu , Xu Zhang , Jingrun Cai , Di Wu , Yanzhao Ma , Deng Li

The hybrid of laser and gas-waterjet (HLGW) is an efficient method for processing microchannels and holes in CFRP laminates, but most existing studies have primarily focused on process parameter optimization. To improve the hole quality, this study investigated the effects of different scanning strategies, scanning speeds, and waterjet impact angles. Hole quality was evaluated by heat affected zone (HAZ) area, taper, micromorphology, and surface roughness. Furthermore, a predictive model for CFRP removal based on laser energy and waterjet kinetic energy was developed to provide a theoretical basis for understanding the HLGW mechanism. The results show that increasing the waterjet impact angle reduces the HAZ area at the hole entrance for both Concentric Scanning Mode (CSM) and Spiral Scanning Mode (SSM). The SSM-1 strategy results in the smallest HAZ area at both the hole entrance and exit. The surface roughness achieved with SSM is superior to that obtained with CSM, with R_q and R_z reduced by 10.69 % and 19.95 %, respectively. The SSM has a larger taper than the CSM, with a maximum increase of 22.16%. An inside-to-outside movement sequence effectively mitigates waterjet erosion on the hole sidewall. The surface produced by CSM contains significantly more micro-defects than that generated by the SSM. The SSM-1 scanning strategy provides the optimal hole sidewall quality.

激光与气体水射流混合（HLGW）是一种加工CFRP复合材料微通道和微孔的有效方法，但现有的研究大多集中在工艺参数的优化上。为了提高井眼质量，研究了不同扫描策略、扫描速度和水射流冲击角度对井眼质量的影响。通过热影响区（HAZ）面积、锥度、微观形貌和表面粗糙度来评价孔质量。此外，建立了基于激光能量和水射流动能的CFRP去除预测模型，为理解HLGW机理提供了理论基础。结果表明：增大水射流冲击角，无论对同心扫描模式还是螺旋扫描模式，都能减小孔入口处的热影响区面积；SSM-1策略在洞口和洞口的HAZ面积最小。SSM的表面粗糙度优于CSM， Rq和Rz分别降低了10.69%和19.95%。SSM比CSM有更大的锥度，最大增加22.16%。从内到外的运动序列有效地减轻了水射流对井侧壁的侵蚀。CSM产生的表面微缺陷明显多于SSM产生的表面微缺陷。SSM-1扫描策略提供了最佳的井侧壁质量。

{"title":"Energy-based modeling and experimental study on the characteristics of CFRP hole-making by the hybrid of laser and gas-waterjet with different scanning modes","authors":"Boshen Yu , Xu Zhang , Jingrun Cai , Di Wu , Yanzhao Ma , Deng Li","doi":"10.1016/j.compositesa.2025.109498","DOIUrl":"10.1016/j.compositesa.2025.109498","url":null,"abstract":"<div><div>The hybrid of laser and gas-waterjet (HLGW) is an efficient method for processing microchannels and holes in CFRP laminates, but most existing studies have primarily focused on process parameter optimization. To improve the hole quality, this study investigated the effects of different scanning strategies, scanning speeds, and waterjet impact angles. Hole quality was evaluated by heat affected zone (HAZ) area, taper, micromorphology, and surface roughness. Furthermore, a predictive model for CFRP removal based on laser energy and waterjet kinetic energy was developed to provide a theoretical basis for understanding the HLGW mechanism. The results show that increasing the waterjet impact angle reduces the HAZ area at the hole entrance for both Concentric Scanning Mode (CSM) and Spiral Scanning Mode (SSM). The SSM-1 strategy results in the smallest HAZ area at both the hole entrance and exit. The surface roughness achieved with SSM is superior to that obtained with CSM, with R<sub>q</sub> and R<sub>z</sub> reduced by 10.69 % and 19.95 %, respectively. The SSM has a larger taper than the CSM, with a maximum increase of 22.16%. An inside-to-outside movement sequence effectively mitigates waterjet erosion on the hole sidewall. The surface produced by CSM contains significantly more micro-defects than that generated by the SSM. The SSM-1 scanning strategy provides the optimal hole sidewall quality.</div></div>","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"202 ","pages":"Article 109498"},"PeriodicalIF":8.1,"publicationDate":"2025-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145797318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Photocatalytic synergistic enhancement of PE antibacterial microfiber fabrics via Schottky junction engineering 利用肖特基结工程光催化增强PE抗菌超细纤维织物

IF 8.1 2区材料科学 Q1 ENGINEERING, MANUFACTURING

Composites Part A: Applied Science and Manufacturing

Pub Date : 2025-12-11 DOI: 10.1016/j.compositesa.2025.109509

Xin Dai , Senlong Yu , Man Liu , Jinqi Wang , Tianqi Jiang , Hengxue Xiang , Zhe Zhou , Meifang Zhu

To overcome the time-lag effect of metal ion release-based antibacterial systems and enhance antimicrobial response rates, a photocatalytic synergistic strategy was developed by synthesizing anatase/rutile heterojunction TiO₂ nanosheets with high activity and thermodynamic stability via hydrothermal synthesis. The TiO₂ nanosheets activate glycolate ligands on their surfaces under light irradiation to generate radicals for capturing Pd²⁺, thereby constructing PE-TiO₂/Pd composites. The interfacial Schottky effect between TiO₂ and Pd significantly improves charge carrier separation efficiency, achieving 95 %∼98 % bactericidal rates against E. coli and B. subtilis within 1 h of simulated solar irradiation, with dramatically shortened response time and enhanced antibacterial efficacy. Mechanistic studies reveal that the Pd-TiO₂ electronic coupling intensifies ROS generation capacity, enabling rapid ROS burst (<30 min) for strong oxidative attack on bacterial membranes. Notably, the material maintains intrinsic hydrophobicity (water contact angle > 104°) without compromising physical barrier properties. This work demonstrates a multi-level interface engineering approach combining photocatalytic-metal synergy, providing an innovative solution for developing active sterilization materials to address drug-resistant infections and public health crises.

为了克服金属离子释放型抗菌体系的时滞效应，提高抗菌反应率，研究了一种光催化协同策略，通过水热合成具有高活性和热力学稳定性的锐钛矿/金红石异质结TiO2纳米片。TiO2纳米片在光照射下激活其表面的乙醇酸配体，产生自由基捕获Pd2+，从而构建PE-TiO2/Pd复合材料。TiO2和Pd之间的界面Schottky效应显著提高了电荷载流子的分离效率，在模拟太阳照射1 h内对大肠杆菌和枯草芽孢杆菌的杀菌率达到95% ~ 98%，反应时间大大缩短，抗菌效果增强。机制研究表明，Pd-TiO2电子偶联增强了ROS的生成能力，使ROS快速爆发（30分钟），对细菌膜进行强氧化攻击。值得注意的是，该材料保持了固有的疏水性（水接触角>； 104°），而不影响物理屏障性能。这项工作展示了一种结合光催化-金属协同作用的多层次界面工程方法，为开发活性灭菌材料提供了一种创新的解决方案，以应对耐药感染和公共卫生危机。

{"title":"Photocatalytic synergistic enhancement of PE antibacterial microfiber fabrics via Schottky junction engineering","authors":"Xin Dai , Senlong Yu , Man Liu , Jinqi Wang , Tianqi Jiang , Hengxue Xiang , Zhe Zhou , Meifang Zhu","doi":"10.1016/j.compositesa.2025.109509","DOIUrl":"10.1016/j.compositesa.2025.109509","url":null,"abstract":"<div><div>To overcome the time-lag effect of metal ion release-based antibacterial systems and enhance antimicrobial response rates, a photocatalytic synergistic strategy was developed by synthesizing anatase/rutile heterojunction TiO<sub>2</sub> nanosheets with high activity and thermodynamic stability via hydrothermal synthesis. The TiO<sub>2</sub> nanosheets activate glycolate ligands on their surfaces under light irradiation to generate radicals for capturing Pd<sup>2+</sup>, thereby constructing PE-TiO<sub>2</sub>/Pd composites. The interfacial Schottky effect between TiO<sub>2</sub> and Pd significantly improves charge carrier separation efficiency, achieving 95 %∼98 % bactericidal rates against <em>E. coli</em> and <em>B. subtilis</em> within 1 h of simulated solar irradiation, with dramatically shortened response time and enhanced antibacterial efficacy. Mechanistic studies reveal that the Pd-TiO<sub>2</sub> electronic coupling intensifies ROS generation capacity, enabling rapid ROS burst (<30 min) for strong oxidative attack on bacterial membranes. Notably, the material maintains intrinsic hydrophobicity (water contact angle > 104°) without compromising physical barrier properties. This work demonstrates a multi-level interface engineering approach combining photocatalytic-metal synergy, providing an innovative solution for developing active sterilization materials to address drug-resistant infections and public health crises.</div></div>","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"202 ","pages":"Article 109509"},"PeriodicalIF":8.1,"publicationDate":"2025-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145797316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Enhanced mechanical performance of epoxy composites and bonded joints doped with intercalated and silane-modified micro/nano kaolin clay 掺杂硅烷改性微纳高岭土增强环氧复合材料和粘结接头的力学性能

IF 8.1 2区材料科学 Q1 ENGINEERING, MANUFACTURING

Composites Part A: Applied Science and Manufacturing

Pub Date : 2025-12-11 DOI: 10.1016/j.compositesa.2025.109501

Kürşat Gültekin , Batuhan Özakın

In this study, kaolin clay was ground to micro and nano sizes using a high-energy mill, was intercalated with dimethyl sulfoxide (DMSO) and subsequently modified with 3-aminopropyltriethoxysilane (AMEO) silane compound. Both bulk and joint samples were prepared by doping the surface-modified kaolin particles into epoxy resin at 1.0%, 2.0%, 3.0%, 4.0%, and 5.0% by weight. While the mechanical properties of the bulk epoxy composites were determined by both static tensile testing and dynamic mechanical analysis (DMA) in single cantilever mode, the mechanical properties of the joint samples were determined by static tensile testing. The success of intercalation and surface modification was verified by X-ray diffraction (XRD) and Fourier transform infrared (FT-IR) spectroscopy analyses, and the interactions between kaolin and epoxy were further examined using FT-IR. The results revealed that the mechanical properties of both bulk composite and single lap joint samples improved with increasing kaolin particle content and varying particle size in the epoxy matrix. Specifically, composites reinforced with 2 wt% nano-kaolin exhibited a 30% increase in tensile strength and a 28.8% increase in storage modulus, while the failure load of the joints increased by 36%.

在这项研究中，高岭土粘土被磨成微纳米级，用二甲亚砜（DMSO）插入，随后用3-氨基丙基三乙氧基硅烷（AMEO）硅烷化合物改性。将表面改性的高岭土颗粒分别以1.0%、2.0%、3.0%、4.0%和5.0%的质量掺入环氧树脂中，制备了本体和节理样品。在单悬臂模式下，本体环氧复合材料的力学性能采用静态拉伸试验和动态力学分析（DMA）两种方法来确定，而接头样品的力学性能采用静态拉伸试验来确定。通过x射线衍射（XRD）和傅里叶红外（FT-IR）光谱分析验证了插层和表面改性的成功，并利用FT-IR进一步研究了高岭土与环氧树脂之间的相互作用。结果表明：随着高岭土颗粒含量的增加和环氧基体中高岭土粒径的变化，整体复合材料和单搭接材料的力学性能均有所改善；其中，添加2 wt%纳米高岭土的复合材料抗拉强度提高了30%，存储模量提高了28.8%，而接缝的破坏载荷增加了36%。

{"title":"Enhanced mechanical performance of epoxy composites and bonded joints doped with intercalated and silane-modified micro/nano kaolin clay","authors":"Kürşat Gültekin , Batuhan Özakın","doi":"10.1016/j.compositesa.2025.109501","DOIUrl":"10.1016/j.compositesa.2025.109501","url":null,"abstract":"<div><div>In this study, kaolin clay was ground to micro and nano sizes using a high-energy mill, was intercalated with dimethyl sulfoxide (DMSO) and subsequently modified with 3-aminopropyltriethoxysilane (AMEO) silane compound. Both bulk and joint samples were prepared by doping the surface-modified kaolin particles into epoxy resin at 1.0%, 2.0%, 3.0%, 4.0%, and 5.0% by weight. While the mechanical properties of the bulk epoxy composites were determined by both static tensile testing and dynamic mechanical analysis (DMA) in single cantilever mode, the mechanical properties of the joint samples were determined by static tensile testing. The success of intercalation and surface modification was verified by X-ray diffraction (XRD) and Fourier transform infrared (FT-IR) spectroscopy analyses, and the interactions between kaolin and epoxy were further examined using FT-IR. The results revealed that the mechanical properties of both bulk composite and single lap joint samples improved with increasing kaolin particle content and varying particle size in the epoxy matrix. Specifically, composites reinforced with 2 wt% nano-kaolin exhibited a 30% increase in tensile strength and a 28.8% increase in storage modulus, while the failure load of the joints increased by 36%.</div></div>","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"202 ","pages":"Article 109501"},"PeriodicalIF":8.1,"publicationDate":"2025-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145748317","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

An efficient equivalent mechanical model for composite panel assembly and its application in assembly process optimization 复合材料板装配的有效等效力学模型及其在装配工艺优化中的应用

IF 8.1 2区材料科学 Q1 ENGINEERING, MANUFACTURING

Composites Part A: Applied Science and Manufacturing

Pub Date : 2025-12-11 DOI: 10.1016/j.compositesa.2025.109506

Zhengtao Qu, Cong Zhao, Yuetao Wu, Luling An

The assembly of large-sized composite panels faces a significant challenge in balancing computational accuracy with efficiency for process control and optimization. This study presents an efficient equivalent mechanical model that integrates a multi-scale modeling approach and a matrix-based solving strategy to enable rapid prediction of key assembly states, including deformation, stress, and residual gap distribution. Combined with the NSGA-II algorithm, the model establishes an optimization framework for determining optimal temporary fastener layouts during the pre-connection stage. Validation through both planar and complex curved panel assembly cases demonstrates that the proposed model achieves high accuracy along with a remarkable computational efficiency improvement compared to conventional FE analysis. This significant acceleration makes computationally intensive, iterative process optimization truly feasible. The proposed methodology thus enhances the analysis capability for large-sized composite structures and provides a theoretical foundation for developing advanced aircraft assembly process control strategies.

大尺寸复合材料板的装配在平衡计算精度与过程控制和优化效率方面面临着重大挑战。本研究提出了一种高效的等效力学模型，该模型集成了多尺度建模方法和基于矩阵的求解策略，能够快速预测关键装配状态，包括变形、应力和残余间隙分布。结合NSGA-II算法，建立了确定预连接阶段临时紧固件最优布局的优化框架。通过平面和复杂曲面面板装配实例的验证表明，与传统有限元分析相比，该模型具有较高的精度，计算效率显著提高。这种显著的加速使得计算密集型的迭代过程优化真正可行。该方法提高了大型复合材料结构的分析能力，为开发先进的飞机装配过程控制策略提供了理论基础。

{"title":"An efficient equivalent mechanical model for composite panel assembly and its application in assembly process optimization","authors":"Zhengtao Qu, Cong Zhao, Yuetao Wu, Luling An","doi":"10.1016/j.compositesa.2025.109506","DOIUrl":"10.1016/j.compositesa.2025.109506","url":null,"abstract":"<div><div>The assembly of large-sized composite panels faces a significant challenge in balancing computational accuracy with efficiency for process control and optimization. This study presents an efficient equivalent mechanical model that integrates a multi-scale modeling approach and a matrix-based solving strategy to enable rapid prediction of key assembly states, including deformation, stress, and residual gap distribution. Combined with the NSGA-II algorithm, the model establishes an optimization framework for determining optimal temporary fastener layouts during the pre-connection stage. Validation through both planar and complex curved panel assembly cases demonstrates that the proposed model achieves high accuracy along with a remarkable computational efficiency improvement compared to conventional FE analysis. This significant acceleration makes computationally intensive, iterative process optimization truly feasible. The proposed methodology thus enhances the analysis capability for large-sized composite structures and provides a theoretical foundation for developing advanced aircraft assembly process control strategies.</div></div>","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"202 ","pages":"Article 109506"},"PeriodicalIF":8.1,"publicationDate":"2025-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145797319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

High-thermal-conductivity submicron pores graphene phase change composites for rapid solar energy harvesting in Antarctic 高导热亚微米孔石墨烯相变复合材料在南极的快速太阳能收集

IF 8.1 2区材料科学 Q1 ENGINEERING, MANUFACTURING

Composites Part A: Applied Science and Manufacturing

Pub Date : 2025-12-10 DOI: 10.1016/j.compositesa.2025.109480

Rui Zhang , Xianxian Sun , Shasha Wang , Peijia Bai , Ruichuan Li , Yu Ma , Yibin Li

Solar energy has emerged as nearly the sole viable renewable energy source for Antarctic expeditions, yet its application is constrained by limited daylight hours. Thus, leveraging phase change materials (PCMs) to rapidly convert and store solar energy as heat is pivotal to addressing the energy challenge. However, traditional PCMs, suffer from low thermal conductivity and sluggish heat storage, restricting heat accumulation within the available light period. In this study, PCM performance was improved via the incorporation of sub-micron high-thermal-conductivity graphene foam. Highly aligned graphene foam (GAGF) was fabricated using high-velocity radial gas jets combined with axial compression from Polymethyl methacrylate (PMMA)-expanded microspheres. It exhibits an exceptional orientation degree (0.32) and a thermal conductivity of 25.29 W/(m·K) a 93 % enhancement over non-airflow-oriented graphitized graphene foam (GGF). Post-PCM infiltration, this value further rises to 43.91 W/(m·K). Benefiting from high orientation and submicron pores (0.03–100.44 μm), GAGF phase change composites (PCCs) shorten heat transfer paths, accelerating phase transition and reducing response time. Under 1000 W/m² solar irradiation, the 4 × 3 × 0.5 cm³ GAGF PCCs achieved a volumetric thermal energy storage rate of 12.99 J/(min·cm³), a 126 % increase versus pure PCM. This research provides significant implications for efficient solar energy storage in Antarctica.

太阳能几乎已经成为南极探险唯一可行的可再生能源，但它的应用受到日照时间有限的限制。因此，利用相变材料（PCMs）快速转换和储存太阳能作为热量是解决能源挑战的关键。然而，传统的pcm存在导热系数低和蓄热缓慢的问题，限制了在有效光周期内的热积累。在这项研究中，通过加入亚微米高导热石墨烯泡沫，PCM的性能得到了改善。利用聚甲基丙烯酸甲酯（PMMA）膨胀微球的高速径向气体喷射结合轴向压缩制备了高度排列的石墨烯泡沫（GAGF）。它具有优异的取向度（0.32）和25.29 W/（m·K）的导热系数，比非气流取向石墨化石墨烯泡沫（GGF）提高了93%。pcm入渗后，该值进一步上升至43.91 W/（m·K）。GAGF相变复合材料（PCCs）得益于高取向和亚微米孔径（0.03-100.44 μm），缩短了传热路径，加速了相变，缩短了响应时间。在1000 W/m2的太阳辐照下，4 × 3 × 0.5 cm3的GAGF PCCs的体积蓄热率为12.99 J/(min·cm3)，比纯PCM提高了126%。这项研究为南极洲的高效太阳能储存提供了重要的意义。

{"title":"High-thermal-conductivity submicron pores graphene phase change composites for rapid solar energy harvesting in Antarctic","authors":"Rui Zhang , Xianxian Sun , Shasha Wang , Peijia Bai , Ruichuan Li , Yu Ma , Yibin Li","doi":"10.1016/j.compositesa.2025.109480","DOIUrl":"10.1016/j.compositesa.2025.109480","url":null,"abstract":"<div><div>Solar energy has emerged as nearly the sole viable renewable energy source for Antarctic expeditions, yet its application is constrained by limited daylight hours. Thus, leveraging phase change materials (PCMs) to rapidly convert and store solar energy as heat is pivotal to addressing the energy challenge. However, traditional PCMs, suffer from low thermal conductivity and sluggish heat storage, restricting heat accumulation within the available light period. In this study, PCM performance was improved via the incorporation of sub-micron high-thermal-conductivity graphene foam. Highly aligned graphene foam (GAGF) was fabricated using high-velocity radial gas jets combined with axial compression from Polymethyl methacrylate (PMMA)-expanded microspheres. It exhibits an exceptional orientation degree (0.32) and a thermal conductivity of 25.29 W/(m·K) a 93 % enhancement over non-airflow-oriented graphitized graphene foam (GGF). Post-PCM infiltration, this value further rises to 43.91 W/(m·K). Benefiting from high orientation and submicron pores (0.03–100.44 μm), GAGF phase change composites (PCCs) shorten heat transfer paths, accelerating phase transition and reducing response time. Under 1000 W/m<sup>2</sup> solar irradiation, the 4 × 3 × 0.5 cm<sup>3</sup> GAGF PCCs achieved a volumetric thermal energy storage rate of 12.99 J/(min·cm<sup>3</sup>), a 126 % increase versus pure PCM. This research provides significant implications for efficient solar energy storage in Antarctica.</div></div>","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"202 ","pages":"Article 109480"},"PeriodicalIF":8.1,"publicationDate":"2025-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145797399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

A review on the potential application of graphene- and MXene-Based nanosheets in Self-Healing Composites: Experimental and theoretical studies 石墨烯和mxene基纳米片在自修复复合材料中的潜在应用：实验和理论研究

IF 8.1 2区材料科学 Q1 ENGINEERING, MANUFACTURING

Composites Part A: Applied Science and Manufacturing

Pub Date : 2025-12-10 DOI: 10.1016/j.compositesa.2025.109503

Xiaohong Ji , Sepideh Pourhashem , Mohammad Hassan Hadizadeh , Jizhou Duan , Baorong Hou

In this paper, polymer nanocomposite coatings containing graphene- and MXene-based self-healing corrosion-resistant nanofillers are reviewed, and their properties, self-healing mechanisms, and theoretical computational studies are discussed. These nanosheets possess inherent characteristics, including tunable chemistry, a high specific surface area, superior barrier performance, and thermal/photothermal properties, making them an ideal candidate for developing next-generation coatings with remarkable corrosion protection and self-healing efficiency. The graphene- and MXene-based nanofillers (i.e., neat nanosheets, functionalized nanosheets, hybrids, and functionalized hybrid materials) with tunable surface terminations and photothermal properties have demonstrated remarkable barrier resistance, active–passive corrosion protection, and self-healing performance in polymer coatings (such as epoxy and polyurethane) when functionalized with corrosion inhibitors or healing agents. Furthermore, the integration of computational approaches, including Molecular Dynamics simulations and Density Functional Theory, has significantly advanced the understanding of nanosheet-polymer interactions, functionalization strategies, and healing mechanisms at the atomic and molecular scales. This review highlights recent advancements in the experimental and computational design of nanocomposite polymer coatings with self-healing properties, presenting a comprehensive analysis of graphene- and MXene-based nanocontainers and their synergistic integration into the polymer matrix to achieve superior corrosion resistance, self-repair capabilities, and enhanced mechanical strength.

本文综述了含石墨烯基和mxeni基自修复耐腐蚀纳米填料的聚合物纳米复合涂层，并对其性能、自修复机制和理论计算研究进行了讨论。这些纳米片具有固有的特性，包括可调的化学性质、高比表面积、优越的屏障性能和热/光热性能，使其成为开发下一代涂层的理想候选者，具有卓越的防腐和自愈效率。石墨烯和m氙基纳米填料（即整齐纳米片、功能化纳米片、杂化材料和功能化杂化材料）具有可调的表面末端和光热性能，在聚合物涂层（如环氧树脂和聚氨酯）中，当与腐蚀抑制剂或愈合剂功能化时，表现出显著的阻隔性、主动被动腐蚀保护和自修复性能。此外，包括分子动力学模拟和密度泛函理论在内的计算方法的整合，极大地促进了对纳米片-聚合物相互作用、功能化策略以及原子和分子尺度上的愈合机制的理解。本文重点介绍了具有自修复性能的纳米复合聚合物涂层的实验和计算设计方面的最新进展，全面分析了石墨烯和mxene纳米容器及其与聚合物基体的协同集成，以实现卓越的耐腐蚀性、自修复能力和增强的机械强度。

{"title":"A review on the potential application of graphene- and MXene-Based nanosheets in Self-Healing Composites: Experimental and theoretical studies","authors":"Xiaohong Ji , Sepideh Pourhashem , Mohammad Hassan Hadizadeh , Jizhou Duan , Baorong Hou","doi":"10.1016/j.compositesa.2025.109503","DOIUrl":"10.1016/j.compositesa.2025.109503","url":null,"abstract":"<div><div>In this paper, polymer nanocomposite coatings containing graphene- and MXene-based self-healing corrosion-resistant nanofillers are reviewed, and their properties, self-healing mechanisms, and theoretical computational studies are discussed. These nanosheets possess inherent characteristics, including tunable chemistry, a high specific surface area, superior barrier performance, and thermal/photothermal properties, making them an ideal candidate for developing next-generation coatings with remarkable corrosion protection and self-healing efficiency. The graphene- and MXene-based nanofillers (i.e., neat nanosheets, functionalized nanosheets, hybrids, and functionalized hybrid materials) with tunable surface terminations and photothermal properties have demonstrated remarkable barrier resistance, active–passive corrosion protection, and self-healing performance in polymer coatings (such as epoxy and polyurethane) when functionalized with corrosion inhibitors or healing agents. Furthermore, the integration of computational approaches, including Molecular Dynamics simulations and Density Functional Theory, has significantly advanced the understanding of nanosheet-polymer interactions, functionalization strategies, and healing mechanisms at the atomic and molecular scales. This review highlights recent advancements in the experimental and computational design of nanocomposite polymer coatings with self-healing properties, presenting a comprehensive analysis of graphene- and MXene-based nanocontainers and their synergistic integration into the polymer matrix to achieve superior corrosion resistance, self-repair capabilities, and enhanced mechanical strength.</div></div>","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"202 ","pages":"Article 109503"},"PeriodicalIF":8.1,"publicationDate":"2025-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145797390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Integrating additively manufactured continuous glass fibre inserts in compression moulding: A novel approach to mitigating fibre–matrix separation effect 在压缩成型中集成增材制造的连续玻璃纤维嵌套：一种减轻纤维基质分离效应的新方法

IF 8.1 2区材料科学 Q1 ENGINEERING, MANUFACTURING

Composites Part A: Applied Science and Manufacturing

Pub Date : 2025-12-08 DOI: 10.1016/j.compositesa.2025.109497

Udane Olaziregi, Aritz Esnaola, Maider Baskaran, Jon Aurrekoetxea

This study presents a novel approach to mitigate fibre–matrix separation defects in compression-moulded thermoplastic composite components by integrating additively manufactured (3D-printed) continuous fibre-reinforced inserts into the stiffener ribs. The design of these inserts was guided by topology optimisation and refined to align with additive manufacturing principles. The feasibility of embedding 3D-printed inserts was demonstrated, yielding hybrid parts with consistent quality, accurate positioning, and a defect-free insert/moulded part interface. Mechanical testing under three-point bending revealed substantial performance gains: stiffness, strength, deflection, and energy absorption improved by factors of up to 1.5, 3.5, 1.4, and 12, respectively. A 45 % reduction in insert thickness further enhanced manufacturability and interfacial bonding, shifting the failure mode from interfacial delamination at the rib base to fibre rupture at the rib tip. Despite the reduced material volume, stiffness decreased by only ∼17 %, while strength remained stable and toughness improved significantly.

本研究提出了一种新方法，通过将增材制造（3d打印）连续纤维增强插入件集成到加强筋中，来减轻压缩成型热塑性复合材料部件中纤维基质分离缺陷。这些刀片的设计以拓扑优化为指导，并根据增材制造原理进行了改进。验证了嵌入3d打印刀片的可行性，从而获得了质量一致、定位准确、无缺陷的刀片/成型部件界面的混合部件。三点弯曲下的力学测试显示了显著的性能提升：刚度、强度、挠度和能量吸收分别提高了1.5、3.5、1.4和12倍。插入件厚度减少了45%，进一步增强了可制造性和界面粘合性，将失效模式从罗纹底部的界面分层转变为罗纹尖端的纤维断裂。尽管减少了材料体积，但刚度仅下降了约17%，而强度保持稳定，韧性显著提高。

{"title":"Integrating additively manufactured continuous glass fibre inserts in compression moulding: A novel approach to mitigating fibre–matrix separation effect","authors":"Udane Olaziregi, Aritz Esnaola, Maider Baskaran, Jon Aurrekoetxea","doi":"10.1016/j.compositesa.2025.109497","DOIUrl":"10.1016/j.compositesa.2025.109497","url":null,"abstract":"<div><div>This study presents a novel approach to mitigate fibre–matrix separation defects in compression-moulded thermoplastic composite components by integrating additively manufactured (3D-printed) continuous fibre-reinforced inserts into the stiffener ribs. The design of these inserts was guided by topology optimisation and refined to align with additive manufacturing principles. The feasibility of embedding 3D-printed inserts was demonstrated, yielding hybrid parts with consistent quality, accurate positioning, and a defect-free insert/moulded part interface. Mechanical testing under three-point bending revealed substantial performance gains: stiffness, strength, deflection, and energy absorption improved by factors of up to 1.5, 3.5, 1.4, and 12, respectively. A 45 % reduction in insert thickness further enhanced manufacturability and interfacial bonding, shifting the failure mode from interfacial delamination at the rib base to fibre rupture at the rib tip. Despite the reduced material volume, stiffness decreased by only ∼17 %, while strength remained stable and toughness improved significantly.</div></div>","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"202 ","pages":"Article 109497"},"PeriodicalIF":8.1,"publicationDate":"2025-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145748321","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Application of vitrimer-based sizing agent onto carbon fibres through thiol-ene photo-polymerisation 巯基光聚合树脂基施胶剂在碳纤维上的应用

IF 8.1 2区材料科学 Q1 ENGINEERING, MANUFACTURING

Composites Part A: Applied Science and Manufacturing

Pub Date : 2025-12-08 DOI: 10.1016/j.compositesa.2025.109495

Yi Wang , Qixing Jiang , Dominik Vorlaufer , Alexander Bismarck , Jonny Blaker , Matthieu Gresil

This work introduces photocuring as a method to apply a vitrimer-based sizing agent onto carbon fibres (CFs) via a thiol–ene reaction. The vitrimer molecule, bisphenol A glycerolate di(norbornenyl ester) (BPAGDN), was synthesised as the sizing agent. Surface treatments including oxidation and silanisation were performed on unsized AS4 CFs to graft thiol groups onto the surface. Upon UV irradiation, norbornene groups on BPAGDN reacted with surface thiol groups through a photo-initiated thiol–ene reaction, coating the CFs with BPAGDN. IR spectroscopy confirmed the epoxy–acid reaction mechanism, with full conversion achieved after 14 h. The molecular structure of BPAGDN was verified by NMR. Surface treatments led to an oxygen content increase of 5.09 %, the appearance of sulphur (1.83 %), and an increase in O’-C=O bonding by 21.42 %, as determined by XPS. The vitrimer coating increased fibre diameter from 7.04 ± 0.06 µm to 7.72 ± 0.15 µm. Mechanical properties of sized CFs remained similar to unsized CFs, though with a 26.35 % decrease in Weibull modulus. The interfacial shear strength (IFSS) of 5-min vitrimer-sized CFs increased by 24.37 % (from 66.75 MPa to 83.01 MPa), due to enhanced fibre–matrix bonding. This work demonstrates a non-destructive vitrimer sizing method using BPAGDN and UV irradiation, yielding stronger fibre–matrix interfaces.

这项工作介绍了光固化作为一种方法，将基于玻璃体的施胶剂通过巯基反应应用到碳纤维（CFs）上。合成了双酚A甘油二降冰片烯酯（BPAGDN）作为施胶剂。表面处理包括氧化和硅烷化，在未尺寸的AS4 cf上进行接枝硫醇基团到表面。在紫外线照射下，BPAGDN上的降冰片烯基团通过光引发的硫醇烯反应与表面的硫醇基团反应，将BPAGDN包覆在cf上。红外光谱证实了环氧酸反应机理，14 h后反应完全转化。核磁共振证实了BPAGDN的分子结构。表面处理使氧含量增加5.09%，硫的出现增加1.83%,O ' -C=O键的形成增加21.42%。玻璃体涂层使纤维直径从7.04±0.06µm增加到7.72±0.15µm。加浆碳纤维的力学性能与未加浆碳纤维相似，但威布尔模量降低了26.35%。由于增强了纤维与基体的结合，5 min后玻璃体尺寸碳纤维的界面剪切强度（IFSS）增加了24.37%（从66.75 MPa增加到83.01 MPa）。这项工作展示了一种使用BPAGDN和紫外线照射的非破坏性玻璃体上浆方法，产生更强的纤维基质界面。

{"title":"Application of vitrimer-based sizing agent onto carbon fibres through thiol-ene photo-polymerisation","authors":"Yi Wang , Qixing Jiang , Dominik Vorlaufer , Alexander Bismarck , Jonny Blaker , Matthieu Gresil","doi":"10.1016/j.compositesa.2025.109495","DOIUrl":"10.1016/j.compositesa.2025.109495","url":null,"abstract":"<div><div>This work introduces photocuring as a method to apply a vitrimer-based sizing agent onto carbon fibres (CFs) via a thiol–ene reaction. The vitrimer molecule, bisphenol A glycerolate di(norbornenyl ester) (BPAGDN), was synthesised as the sizing agent. Surface treatments including oxidation and silanisation were performed on unsized AS4 CFs to graft thiol groups onto the surface. Upon UV irradiation, norbornene groups on BPAGDN reacted with surface thiol groups through a photo-initiated thiol–ene reaction, coating the CFs with BPAGDN. IR spectroscopy confirmed the epoxy–acid reaction mechanism, with full conversion achieved after 14 h. The molecular structure of BPAGDN was verified by NMR. Surface treatments led to an oxygen content increase of 5.09 %, the appearance of sulphur (1.83 %), and an increase in O’-C=O bonding by 21.42 %, as determined by XPS. The vitrimer coating increased fibre diameter from 7.04 ± 0.06 µm to 7.72 ± 0.15 µm. Mechanical properties of sized CFs remained similar to unsized CFs, though with a 26.35 % decrease in Weibull modulus. The interfacial shear strength (IFSS) of 5-min vitrimer-sized CFs increased by 24.37 % (from 66.75 MPa to 83.01 MPa), due to enhanced fibre–matrix bonding. This work demonstrates a non-destructive vitrimer sizing method using BPAGDN and UV irradiation, yielding stronger fibre–matrix interfaces.</div></div>","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"202 ","pages":"Article 109495"},"PeriodicalIF":8.1,"publicationDate":"2025-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145748323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Urchin-like CoNi-LDH-decorated MXene@PANI with strong polarization capability for enhanced electromagnetic wave absorption 海胆状coni - ldh装饰MXene@PANI具有强极化能力，增强电磁波吸收

IF 8.1 2区材料科学 Q1 ENGINEERING, MANUFACTURING

Composites Part A: Applied Science and Manufacturing

Pub Date : 2025-12-08 DOI: 10.1016/j.compositesa.2025.109496

Jinghe Guo , Yanxiang Wang , Bohan Ding , Yue Sun , Shichao Dai , Dongming Liu

Magneto-dielectric synergistic engineering, offering tunable electromagnetic parameters and microstructural versatility, has emerged as a powerful strategy for optimizing electromagnetic-wave (EMW) attenuation; drawing on bio-inspired design cues to tailor functional structures plays a pivotal role in countering current electromagnetic pollution. However, fabricating heterointerface-engineered architectures with strong polarization capability to optimize impedance matching and elucidate loss mechanisms remains challenging. In this study, a multilayered heterostructured MXene@PANI@CoNi-LDH composite was fabricated via electrostatic self-assembly followed by hydrothermal secondary growth; PANI serves as a bridging moiety that tunes the dielectric constant, while the introduction of urchin-like CoNi-LDH not only captures more EMW but also intensifies the synergistic polarization relaxation within the system. Experimental results demonstrate that the MPCN-2 sample achieves a minimum RL of −68.27 dB at 1.8 mm and a maximum bandwidth of 4.24 GHz at 1.1 mm, accomplishing highly efficient EMW absorption. Moreover, the radar cross-section (RCS = −38.18 dB m²) fully confirms its substantial potential for practical applications. This work offers guidance for achieving strong absorption and tailoring functional architectures in MXene-based composite devices.

磁介电协同工程，提供可调谐的电磁参数和微结构的通用性，已经成为优化电磁波（EMW）衰减的有力策略；利用生物启发的设计线索来定制功能结构在对抗当前的电磁污染方面起着关键作用。然而，制造具有强极化能力的异构接口工程架构来优化阻抗匹配和阐明损耗机制仍然是一个挑战。本研究通过静电自组装和水热二次生长制备了多层异质结构MXene@PANI@CoNi-LDH复合材料；PANI作为桥接部分调节介电常数，而引入海胆状CoNi-LDH不仅捕获更多的EMW，而且增强了系统内的协同极化弛豫。实验结果表明，MPCN-2样品在1.8 mm处的最小RL为−68.27 dB，在1.1 mm处的最大带宽为4.24 GHz，实现了高效的EMW吸收。此外，雷达截面（RCS = - 38.18 dB m2）充分证实了其实际应用的巨大潜力。这项工作为在基于mxene的复合器件中实现强吸收和定制功能架构提供了指导。

{"title":"Urchin-like CoNi-LDH-decorated MXene@PANI with strong polarization capability for enhanced electromagnetic wave absorption","authors":"Jinghe Guo , Yanxiang Wang , Bohan Ding , Yue Sun , Shichao Dai , Dongming Liu","doi":"10.1016/j.compositesa.2025.109496","DOIUrl":"10.1016/j.compositesa.2025.109496","url":null,"abstract":"<div><div>Magneto-dielectric synergistic engineering, offering tunable electromagnetic parameters and microstructural versatility, has emerged as a powerful strategy for optimizing electromagnetic-wave (EMW) attenuation; drawing on bio-inspired design cues to tailor functional structures plays a pivotal role in countering current electromagnetic pollution. However, fabricating heterointerface-engineered architectures with strong polarization capability to optimize impedance matching and elucidate loss mechanisms remains challenging. In this study, a multilayered heterostructured MXene@PANI@CoNi-LDH composite was fabricated via electrostatic self-assembly followed by hydrothermal secondary growth; PANI serves as a bridging moiety that tunes the dielectric constant, while the introduction of urchin-like CoNi-LDH not only captures more EMW but also intensifies the synergistic polarization relaxation within the system. Experimental results demonstrate that the MPCN-2 sample achieves a minimum RL of −68.27 dB at 1.8 mm and a maximum bandwidth of 4.24 GHz at 1.1 mm, accomplishing highly efficient EMW absorption. Moreover, the radar cross-section (RCS = −38.18 dB m<sup>2</sup>) fully confirms its substantial potential for practical applications. This work offers guidance for achieving strong absorption and tailoring functional architectures in MXene-based composite devices.</div></div>","PeriodicalId":282,"journal":{"name":"Composites Part A: Applied Science and Manufacturing","volume":"202 ","pages":"Article 109496"},"PeriodicalIF":8.1,"publicationDate":"2025-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145748326","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Prediction of the evolution of entrapped air in Liquid Composite Molding by three-dimensional compressible two-phase flow model 三维可压缩两相流模型预测液态复合材料成型中夹持空气的演化

IF 8.1 2区材料科学 Q1 ENGINEERING, MANUFACTURING

Composites Part A: Applied Science and Manufacturing

Pub Date : 2025-12-08 DOI: 10.1016/j.compositesa.2025.109499

Junchun Ding , Yibo Wu , Xin Lu , Hui Chen , Cheng Zhang , Rongshan Zhou , Helezi Zhou , Huamin Zhou

Dry spots are the most concerned molding defects in Liquid Composite Molding (LCM). Their final size and position are affected by the evolution of entrapped air in the flow field, thus predicting this evolution via simulation is crucial. However, existing macroscale entrapped air prediction models cannot effectively predict both the migration and size evolution of entrapped air simultaneously when the injection pressure is reduced or the vent ports are opened. We developed a macroscale three-dimensional compressible two-phase flow model to predict the evolution of entrapped air and the subsequent formation of dry spots during the LCM filling process. Thereafter, sandwich-panel and flat-panel vacuum infusion experiments were conducted to verify the proposed model. Simulation results indicate that the proposed model can accurately predict evolution of entrapped air regions’ size and position in the experiments.

干斑是液体复合材料成型中最受关注的成型缺陷。它们的最终尺寸和位置受到流场中夹持空气演变的影响，因此通过模拟来预测这种演变是至关重要的。然而，现有的宏观圈闭空气预测模型不能有效地同时预测在降低喷射压力或打开排气口时圈闭空气的迁移和尺寸演变。我们开发了一个宏观三维可压缩两相流模型来预测在LCM填充过程中夹持空气的演变和随后形成的干点。然后，通过夹层板和平面板真空灌注实验对模型进行验证。仿真结果表明，该模型能准确预测实验中困气区大小和位置的演变。

引用次数: 0