【新文速递】2025年2月20日复合材料SCI期刊最新文章_ACT_Mechanical_Additive_System_MAGNET_断裂_复合材料_化学_电路_航空_航天_冶金_电力_电子_裂纹_电场_材料

【新文速递】2025年2月22日复合材料SCI期刊最新文章

今日更新：Composite Structures 3 篇，Composites Part A: Applied Science and Manufacturing 2 篇，Composites Part B: Engineering 4 篇，Composites Science and Technology 1 篇Composite StructuresData-Driven Mean-Field Homogenization: Enhancing the accuracy of the Mori-Tanaka methodWitold Ogiermandoi:10.1016/j.compstruct.2025.118985数据驱动的平均场均匀化：提高Mori-Tanaka方法的准确性The Mori-Tanaka method is well-known for its good predictive capabilities and excellent time efficiency. However, a significant weakness of the Mori-Tanaka method is its decreasing accuracy as the volume fraction of particles increases. Therefore, this paper focuses on developing a new approach to improve stiffness predictions for particle-reinforced composites across a wide range of particle volume fractions by using a mixed data-driven and mean-field homogenization modelling strategy. The basic idea is to modify the strain concentration tensor by fitting the results of Mori-Tanaka homogenization to data generated using numerical full-field homogenization based on the representative volume element (RVE). The modified tensor can then replace the original strain concentration tensor within the established framework of Mori-Tanaka homogenization to predict the effective stiffness. The results obtained using the proposed approach are in good agreement with those provided by full-field finite element-based homogenization. Moreover, the results obtained through Mori-Tanaka and double inclusion methods have been added for reference. The presented results demonstrate the potential of the proposed data-driven mean-field model as an efficient approach for addressing the micromechanics of particle-reinforced composites.Mori-Tanaka方法以其良好的预测能力和出色的时间效率而闻名。然而，Mori-Tanaka方法的一个显著缺点是其精度随着颗粒体积分数的增加而降低。因此，本文的重点是开发一种新的方法，通过使用混合数据驱动和平均场均匀化建模策略，提高颗粒增强复合材料在大范围颗粒体积分数下的刚度预测。其基本思想是将Mori-Tanaka均质化结果拟合到基于代表性体积元（RVE）的数值全场均质化生成的数据中，从而修正应变浓度张量。修正后的张量可以在Mori-Tanaka均质化框架内代替原有的应变浓度张量来预测有效刚度。采用该方法得到的结果与基于全场有限元的均匀化方法得到的结果吻合较好。并补充了Mori-Tanaka法和双包合法所得结果，供参考。研究结果表明，数据驱动的平均场模型是解决颗粒增强复合材料微观力学问题的有效方法。Blast resistance of sandwich structure consisting of re-entrant honeycomb reinforced by catenaryZhen Zou, Fengxiang Xu, Xiaoqiang Niu, Yifan Zhu, Zhoushun Jiangdoi:10.1016/j.compstruct.2025.118995接触网增强可入式蜂窝夹层结构的抗爆破性能In order to further improve the blast resistance of re-entrant honeycomb (RH) cored sandwich panels while ensuring manufacturability, a sandwich panel consisting of RH reinforced by catenary is proposed, and its blast resistance is evaluated through the finite element method validated by the explosion experiments of reinforced RH (RRH) cored sandwich panels. The numerical results show that the RRH core can achieve an 18.7% decline in the maximum deflection of back facesheets, and a 25.7% increase in energy absorption, compared to the classic RH core with the same relative density. When RRH and RH cores share the same thickness, the former can achieve a 76.1% decrease in the maximum deflection of back facesheets and a 10.4% improvement in energy absorption. Furthermore, the deformation behavior of sandwich panels and core units is analyzed to determine that both the formation of more plastic hinges and a larger deformation region than those observed in classic RH cores promote the better blast resistance of RRH cored sandwich panels. Additionally, a parametric analysis is carried out to suggest that increasing the core thickness and catenary height of RRH units can further improve the anti-blast performance.为了在保证可制造性的前提下进一步提高蜂窝芯夹芯板的抗爆性能，提出了一种接触网加固的蜂窝芯夹芯板，并通过加固的蜂窝芯夹芯板爆炸实验验证了该夹芯板的抗爆性能。数值计算结果表明，在相同的相对密度下，与传统的RH磁芯相比，RRH磁芯的最大后面板挠度降低了18.7%，能量吸收提高了25.7%。当RRH型芯与RH型芯厚度相同时，RRH型芯的最大背板挠度降低76.1%，吸能提高10.4%。此外，对夹层板和芯板的变形行为进行了分析，确定了与经典RH芯相比，RRH芯板形成更多的塑性铰链和更大的变形区域都促进了RRH芯板的抗爆破性能。此外，参数分析表明，增加RRH单元的核心厚度和悬链线高度可以进一步提高抗爆性能。Mechanical behaviors of glulam beam-to-column joints strengthened with fiber-reinforced polymer composites: Experimental investigation, numerical analysis and ANN prediction modelYasemin SIMSEK TURKER, Semsettin KILINCARSLAN, Mehmet AVCARdoi:10.1016/j.compstruct.2025.118983纤维增强聚合物复合材料加固胶合木梁柱节点的力学行为：试验研究、数值分析和人工神经网络预测模型Because of its respective advantages, such as high load-bearing capacity relative to their bulk, low embodied carbon and renewable properties, and sustainability, wood is becoming more popular in engineering structures. Due to several effects, some deterioration occurs in wood structures over time, and the load-bearing elements lose their properties, especially the beam-to-column joints. This study investigates the mechanical behaviors of basalt fiber-reinforced polymer (BFRP) and carbon fiber-reinforced polymer (CFRP) glulam beam-to-column joints. Beam-to-column connections are realized using three methods and are wrapped 2, 3, and 4-times. Cycle loading load–displacement experiments are performed on beam-to-column joints. Vital mechanical behaviors, including maximum load-carrying capacity, energy consumption capacity, and stiffness value, are investigated. The data obtained from the experimental study are estimated by creating a model with artificial neural networks (ANNs) and finite element (FE) analysis. The obtained findings show that the effect of reinforcement improves the rigidities, energy consumption capabilities, and load-carrying capacities of beam-to-column joints. In addition, it is observed that the load-carrying capacity of beam-to-column joints increases with the increase in the number of plies. Furthermore, it is determined that the mechanical behaviors of the beam-to-columns strengthened with CFRPs are better than those for BFRPs.由于其各自的优势，例如相对于其体积的高承载能力，低隐含碳和可再生特性以及可持续性，木材在工程结构中越来越受欢迎。由于几种影响，随着时间的推移，木结构会发生一些劣化，承重元件失去其性能，特别是梁柱节点。本文研究了玄武岩纤维增强聚合物（BFRP）和碳纤维增强聚合物（CFRP）胶合木梁柱节点的力学行为。梁柱连接使用三种方法实现，并包裹2、3和4次。对梁柱节点进行了循环荷载-位移试验。关键的力学行为，包括最大承载能力，能量消耗能力和刚度值，进行了研究。通过人工神经网络（ann）和有限元（FE）分析建立模型，对实验研究得到的数据进行了估计。结果表明，配筋的作用提高了梁柱节点的刚度、耗能能力和承载能力。此外，梁柱节点的承载能力随着层数的增加而增加。此外，还确定了cfrp加固梁柱的力学性能优于bfrp加固梁柱的力学性能。Composites Part A: Applied Science and ManufacturingHigh-density polyethylene reinforced with carbon dots for improved processing cycles and recyclability traceabilityRaul Simões, Joana Rodrigues, Žan Podvratnik, Ana Violeta Girão, Nélia Alberto, Nazanin Emami, Victor Neto, Teresa Monteiro, Gil Gonçalvesdoi:10.1016/j.compositesa.2025.108814 高密度聚乙烯增强与碳点改善加工周期和可回收性的可追溯性The sustainable utilization of polymers depends on efficient recycling and the ability to retain their critical physical properties for further processing. In this study, high-density polyethylene (HDPE) nanocomposite properties were enhanced by the integration of carbon dots (CDs), in terms of processability and optical traceability during recycling. HDPE composites with varying CD loadings were prepared to assess their effects on optical and mechanical properties over three consecutive recycling cycles. The composite containing 0.5 wt% CDs demonstrated a 17 % increase in tensile strength after recycling, with a maximum strain of 11%, significantly outperforming the neat HDPE while preserving its crystalline structure. Additionally, incorporating 0.1 wt% CDs reduced the wear rate by up to 98 %, highlighting a substantial improvement in durability. Improved processability of the recycled material was confirmed by producing 3D-printed specimens at each CD concentration. Notably, composites containing 0.1 wt% CDs exhibited excellent printability even after three recycling cycles. CDs have also been utilized as luminescence tracers. This study revealed that the quenching of the blue phosphorescence associated to the carbonyl groups of the polymer backbone was highly dependent on the CD content. Importantly, nanocomposites with 0.1 wt% CDs exhibited progressive luminescence changes corresponding to the number of recycling cycles, enabling quick and reliable traceability and sorting using standard mobile phone cameras. These findings are highly promising, paving the way for rapid, automated, and scalable HDPE recycling. This innovation offers significant potential for advancing the circular economy of HDPE and enhancing the sustainability of polymer materials.聚合物的可持续利用取决于有效的回收和为进一步加工保留其关键物理特性的能力。在这项研究中，高密度聚乙烯（HDPE）纳米复合材料的性能通过碳点（cd）的集成而得到增强，在可加工性和回收过程中的光学可追溯性方面。制备了不同CD载荷的HDPE复合材料，以评估其在连续三个循环中对光学和机械性能的影响。含有0.5 wt% CDs的复合材料在回收后的抗拉强度增加了17%，最大应变为11%，在保持其晶体结构的同时显著优于纯HDPE。此外，加入0.1 wt% cd后，磨损率降低了98%，显著提高了耐久性。通过在每种CD浓度下生产3d打印样品，证实了再生材料的可加工性得到改善。值得注意的是，含有0.1 wt% cd的复合材料即使在三次回收循环后也表现出优异的印刷性。cd也被用作发光示踪剂。该研究表明，与聚合物主链羰基相关的蓝色磷光的猝灭高度依赖于CD含量。重要的是，含有0.1 wt% CDs的纳米复合材料显示出与回收循环次数相对应的渐进发光变化，可以使用标准手机相机快速可靠地跟踪和分类。这些发现非常有希望，为快速、自动化和可扩展的HDPE回收铺平了道路。这一创新为推进HDPE的循环经济和增强聚合物材料的可持续性提供了巨大的潜力。Advanced characterization of thermal degradation mechanisms in carbon fibre-reinforced polymer composites under continuous wave laser irradiationMax Mammone, Jojibabu Panta, Richard P. Mildren, John Wang, Juan Escobedo-Diaz, Lance Mcgarva, Mathew Ibrahim, Adam Sharp, Richard Yang, Y.X. Zhangdoi:10.1016/j.compositesa.2025.108817连续波激光辐照下碳纤维增强聚合物复合材料热降解机理的深入表征This study provides a detailed and comprehensive analysis of the effects of laser power and beam diameter on the thermal damage characteristics of carbon fibre-reinforced polymer (CFRP) composites, aiming to uncover the underlying damage mechanisms using advanced characterization techniques. Continuous wave laser irradiation was performed with beam diameters of 3.18 mm and 5.70 mm at varying power levels up to 365 W to evaluate the influence of laser parameters on CFRP damage. High-resolution thermal imaging captured temperature distributions on the CFRP surfaces, revealing complex interactions between laser parameters and resulting thermal damage. Quantitative ultrasonic C-scan imaging offered detailed insights into the extent and distribution of damage, elucidating the interplay between laser parameters and CFRP integrity. Results show that for the 3.18 mm beam diameter, perforation times significantly decreased from 46 s at 215 W to 7 s at 365 W. Simultaneously, the damaged area reduced from 1204 mm2 (48.2 %) at 215 W to 372 mm2 (14.9 %) at 365 W, indicating efficient material ablation. Conversely, for the 5.7 mm beam diameter, perforation times were considerably longer, ranging from 393 s at 215 W to 269 s at 365 W, while the damage area increased from 1299 mm2 (52.0 %) to 1712 mm2 (68.5 %), reflecting a broader heat-affected zone (HAZ) and more extensive thermal damage. Mass loss trends also varied, decreasing with higher power for the smaller beam diameter but increasing for the larger beam, highlighting contrasting ablation efficiencies and thermal effects. Micro-CT imaging revealed internal structural changes in the CFRP, confirming SEM observations that detailed surface morphology alterations under varying laser conditions. Infrared micro-spectroscopy beamline (IRM) analysis further uncovered chemical modifications and compositional changes induced by laser exposure, providing insights into degradation mechanisms and residual stresses within the composite matrix. These findings significantly enhance the understanding of thermal damage mechanisms in CFRP, offering valuable implications for aerospace and high-performance composite applications.本研究详细而全面地分析了激光功率和光束直径对碳纤维增强聚合物（CFRP）复合材料热损伤特性的影响，旨在利用先进的表征技术揭示潜在的损伤机制。采用连续波激光照射，光束直径分别为3.18 mm和5.70 mm，照射功率为365 W，以评估激光参数对CFRP损伤的影响。高分辨率热成像捕获了CFRP表面的温度分布，揭示了激光参数与热损伤之间复杂的相互作用。定量超声c扫描成像提供了详细的了解损伤的程度和分布，阐明了激光参数与CFRP完整性之间的相互作用。结果表明：对于直径为3.18 mm的光束，穿孔时间由215 W时的46 s显著缩短至365 W时的7 s；同时，损伤面积从215 W时的1204 mm2（48.2%）减少到365 W时的372 mm2(14.9%)，表明材料有效消融。相反，对于5.7 mm的光束直径，射孔时间明显延长，从215 W时的393 s增加到365 W时的269 s，而损伤面积从1299 mm2（52.0%）增加到1712 mm2(68.5%)，反映出更宽的热影响区（HAZ）和更广泛的热损伤。质量损失趋势也有所不同，当光束直径较小时，质量损失随功率增大而减小，而当光束直径较大时，质量损失随功率增大而增大，这突出了不同的烧蚀效率和热效应。微ct成像显示了CFRP的内部结构变化，证实了扫描电镜观察到的在不同激光条件下详细的表面形态变化。红外微光谱光束线（IRM）分析进一步揭示了激光照射引起的化学修饰和成分变化，为复合材料基体的降解机制和残余应力提供了见解。这些发现显著增强了对CFRP热损伤机制的理解，为航空航天和高性能复合材料的应用提供了有价值的启示。Composites Part B: EngineeringEnhancing mechanical properties, durability and multifunctionality of concrete structures via using ultra-high performance concrete layer: A reviewSufen Dong, Jinfang Gu, Xinyu Ouyang, Sung-Hwan Jang, Baoguo Handoi:10.1016/j.compositesb.2025.112329利用超高性能混凝土层提高混凝土结构的力学性能、耐久性和多功能：综述As a kind of advanced cement-based composites with superior mechanical properties and remarkable durability, ultra-high performance concrete (UHPC) shows great potential in repairing and strengthening concrete structures in the form of layers. Hence, this paper firstly conducts a systematic review on the static/dynamic mechanical properties, interfacial bond performance between UHPC layer and concrete, durability, and multifunctional/eco-friendly properties (e.g. self-sensing, self-heating, self-healing, self-cleaning, and self-liminescence capability) of UHPC layer repaired/strengthened concrete structures. Carbon polymer reinforced plastic bars reinforced UHPC layer significantly enhances the flexural ultimate load and ductility of reinforced concrete (RC) structures, and two-sided layers are economical and reasonable. Roughing interface and epoxy adhesive treatment are conducive to increasing flexural ultimate load and shear resistance of UHPC layer-strengthened RC beams. The failure mode of RC beams under impact load tends to change from shear to flexure by UHPC layer, and the gap less than 10 mm between UHPC layer and RC beam limits crack development in RC beams under single impact load. Strengthening the column-foot zone by using a UHPC jacket with the size higher than the plastic hinge zone improves their seismic performance of RC columns. The increase of NSC substrate strength, surface moisture, the using of water-based epoxy resin agent, and the proper curing can improve the interfacial bond strength between UHPC layer and RC beam. Meanwhile, it is worthwhile to note that UHPC layer is not beneficial for increasing high-temperature spalling resistance of RC structures, but can be used to develop smart and multifunctional infrastructures.超高性能混凝土（UHPC）作为一种先进的水泥基复合材料，具有优异的力学性能和显著的耐久性，在以层状形式修复和加固混凝土结构方面显示出巨大的潜力。因此，本文首先系统综述了UHPC层修复/加固混凝土结构的静/动态力学性能、UHPC层与混凝土的界面粘结性能、耐久性以及自传感、自加热、自修复、自清洁、自发光等多功能/环保性能。碳高聚物钢筋加筋层显著提高了钢筋混凝土结构的极限弯曲荷载和延性，双面加筋层经济合理。粗加工界面和环氧胶粘接处理有利于提高UHPC层加筋RC梁的极限受弯荷载和抗剪能力。在冲击荷载作用下，UHPC层使RC梁的破坏模式由剪切向弯曲转变，且UHPC层与RC梁之间小于10 mm的间隙限制了单次冲击荷载作用下RC梁裂纹的发展。采用比塑性铰区尺寸大的超高性能混凝土护套对柱脚区进行加固，提高了混凝土柱的抗震性能。提高NSC基材强度、增加表面水分、使用水性环氧树脂剂以及适当的养护可以提高UHPC层与RC梁之间的界面结合强度。同时，值得注意的是，UHPC层并不利于提高钢筋混凝土结构的耐高温剥落性，但可用于发展智能多功能基础设施。Ablation-resistant (Hf,Zr)B2-SiC composite coating with alternating lamellar architecture by one-step atmospheric plasma sprayingJunshuai Lv, Wei Li, Zhenglong Li, Yanqin Fu, Yawen Ma, Lingxiang Guo, Jiachen Li, Tao Li, Yulei Zhangdoi:10.1016/j.compositesb.2025.112302一步大气等离子喷涂抗烧蚀（Hf,Zr）B2-SiC交替层状复合涂层Inspired by the brick-and-mortar arrangement of mollusk shells, constructing an alternating lamellar architecture is an effective strategy to overcome the catastrophic damage of ablation-resistant coatings and their oxide scales in extreme environments. Here, we developed a coating dominantly composed of alternating layers of (Hf,Zr)B2 and SiC by one-step supersonic atmosphere plasma spraying for C/C composites, which improves fabrication efficiency. The coating shows “zero” ablation and cycling reliability at 2200 °C. The resulting oxide scale based on a multilayered (Hf,Zr)O2 skeleton with embedded glassy SiO2 layers is responsible for the superior ablation resistance. The refractory skeleton ensures thermal stability and the SiO2 layers inhibit the oxygen inward diffusion. Two energy dissipation mechanisms, including crack deflection and multilayered delamination, contribute to the structural integrity of the oxide scale due to numerous interfaces in the lamellar architecture. The alternating lamellar coatings enable simultaneously superior oxidation resistance and damage tolerance and have great application potential for reusable aerospace components requiring thermal protection.受软体动物壳的砖块和砂浆排列的启发，构建交替的层状结构是克服极端环境下抗烧蚀涂层及其氧化鳞片灾难性破坏的有效策略。本文采用一步超声速气氛等离子喷涂技术制备了以（Hf,Zr）B2和SiC相间层为主的C/C复合材料涂层，提高了制备效率。该涂层在2200℃下表现出“零”烧蚀和循环可靠性。由此产生的基于多层（Hf,Zr）O2骨架和嵌入玻璃状SiO2层的氧化膜具有优异的抗烧蚀性。耐火材料骨架确保热稳定性，SiO2层抑制氧向内扩散。由于层状结构中存在大量的界面，两种能量耗散机制（包括裂纹挠曲和多层分层）有助于氧化层的结构完整性。交替层状涂层同时具有优异的抗氧化性和损伤容错性，在需要热保护的可重复使用的航空航天部件上具有很大的应用潜力。A novel analytical model to characterise the monotonic and cyclic contribution of fibre bridging during Mode I fatigue delamination in (C)FRPsFrancisco Monticeli, Davide Biagini, Yasmine Mosleh, John-Alan Pascoedoi:10.1016/j.compositesb.2025.112319一种新的分析模型来表征(C) frp中I型疲劳分层过程中纤维桥接的单调和循环贡献Fibre bridging is an important phenomenon influencing the mode I delamination growth behaviour in composite materials. Accurate modelling of this phenomenon is required in order to be able to account for its effects in damage tolerance evaluation of composite structures. Therefore, this study introduces a novel physical model to isolate and quantify the contribution of fibre bridging to Mode I fatigue delamination. The model distinguishes between monotonic and cyclic components of fibre bridging stress, capturing their individual effects on the strain energy release rate (SERR) in the Paris curve. The monotonic component, based on the Sørensen model, accounts for pre-cracking effects, while the cyclic component is derived by integrating a bridging stress function over the end-opening displacement, with both components modelled by empirical exponential relationships. The model has been validated against established methods such as the Yao model and specific extrapolation techniques, demonstrating improved accuracy in fitting the Paris curve, particularly in accounting for the monotonic influence in the shift of the SERR and the cyclic contribution to the curve slope. Importantly, the model requires only one quasi-static and one fatigue test, reducing the experimental workload. In conclusion, this method provides a more accurate characterisation of fibre bridging effects, making it a robust tool for fatigue delamination analysis.纤维桥接是影响复合材料I型脱层生长行为的重要现象。为了能够解释这种现象在复合材料结构损伤容限评价中的影响，需要对这种现象进行精确的建模。因此，本研究引入了一种新的物理模型来隔离和量化纤维桥接对I型疲劳分层的贡献。该模型区分了纤维桥接应力的单调和循环分量，捕捉了它们对巴黎曲线中应变能释放率（SERR）的个别影响。基于Sørensen模型的单调分量考虑了预裂效应，而循环分量则是通过对端开口位移的桥接应力函数进行积分得出的，两个分量都采用经验指数关系建模。该模型已通过Yao模型和特定外推技术等现有方法进行了验证，证明了巴黎曲线拟合的准确性有所提高，特别是在考虑SERR移动的单调影响和曲线斜率的循环贡献方面。重要的是，该模型只需要一次准静态和一次疲劳试验，减少了实验工作量。总之，该方法提供了更准确的纤维桥接效应表征，使其成为疲劳分层分析的可靠工具。Near-Infrared Induced Photo-Thermal Synergistic Curing: Enhancing the Construction Efficiency and Curing Uniformity of Glass Fiber Reinforced CompositesJunyi Pi, Zilong Zhu, Xinxin Sang, Hongchen Ji, Ren Liudoi:10.1016/j.compositesb.2025.112320 近红外诱导光热协同固化：提高玻璃纤维增强复合材料的施工效率和固化均匀性The efficient, mild, and convenient photopolymerization technology offers a promising green fabrication method for composites and has already been successfully applied in structural repair and outdoor manufacture. In previous studies, a method was developed for producing thick glass fiber-reinforced composites (GFRPC) of up to 20 mm based on upconversion assisted near-infrared photopolymerization (UCAP). Photo-thermal dual curing can further improve both curing uniformity and efficiency. The present work fully utilized the synergistic photothermal effects of UCAP. Near-infrared induced the cleavage of Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide (BAPO) to generate benzoyl radicals, while benzopinacol (BPNC) thermally decomposed into benzophenone radicals, jointly promoting acrylate matrix crosslinking. When the thickness of GFRPC reached 15 mm, the curing time was reduced to 60 s, achieving double bond conversion of 81 % and 71 % on the top and bottom surfaces, respectively. Compared to the BAPO/UCAP photoinitiated system, the BPNC/BAPO/UCAP photo-thermal synergistic system significantly enhanced both the curing efficiency and uniformity of GFRPC. The resulting GFRPC exhibited an interfacial shear strength (IFSS) of 37.15 MPa, a flexural strength of 506.85 MPa, and an increased impact toughness of 242.70 kJ/m2. The photo-thermal synergistic curing method effectively facilitated the construction of reliable GFRPC with enhanced properties, thereby bolstering the potential for rapid manufacturing of high-performance GFRPC in outdoor applications using photopolymerization techniques.高效、温和、方便的光聚合技术为复合材料的绿色制造提供了一种很有前途的方法，并已成功地应用于结构修复和户外制造。在之前的研究中，开发了一种基于上转换辅助近红外光聚合（UCAP）的方法来生产厚达20毫米的玻璃纤维增强复合材料（GFRPC）。光热双固化可以进一步提高固化的均匀性和效率。本工作充分利用了UCAP的协同光热效应。近红外诱导苯二（2,4,6-三甲基苯甲酰）氧化膦（BAPO）裂解生成苯甲酰自由基，而苯并萘酚（BPNC）热分解生成苯甲酮自由基，共同促进丙烯酸酯基质交联。当GFRPC的厚度达到15 mm时，固化时间缩短至60 s，其上、下表面的双键转化率分别达到81%和71%。与BAPO/UCAP光引发体系相比，BPNC/BAPO/UCAP光热协同体系显著提高了GFRPC的固化效率和均匀性。所得GFRPC的界面抗剪强度（IFSS）为37.15 MPa，抗折强度为506.85 MPa，冲击韧性增加242.70 kJ/m2。光热协同固化方法有效地促进了性能增强的可靠GFRPC的构建，从而增强了利用光聚合技术快速制造户外应用的高性能GFRPC的潜力。Composites Science and TechnologyDynamic polydisulfide-assisted in-situ reduction and encapsulation of nanosilver for fabricating robust photothermal antimicrobial composite textilesLeilei Wu, Yun Yuan, Xinyi Huang, Xiaoyan Liu, Bo Xu, Li Cui, Qiang Wang, Ping Wangdoi:10.1016/j.compscitech.2025.111122 动态聚二硫化物辅助原位还原和包封纳米银制备坚固的光热抗菌复合纺织品The development of textiles with efficient and long-lasting antimicrobial properties is critical for mitigating medical cross-infections and addressing the growing demands of public health. Herein, an effective approach was demonstrated to fabricate biocompatible composite textiles with robust antimicrobial properties, through dynamic polydisulfide assisted in-situ reduction and encapsulation of nanosilver. Specifically, a reductive platform was established on cotton surfaces by sequentially grafting γ-aminopropyl triethoxysilane and α-lipoic acid (ALA). Subsequently, the amino groups and the dynamically-generated sulfhydryl groups within ALA units were utilized to initiate the reduction of silver ions without the need for additional reductants, thereby forming a stable antibacterial matrix layer on the fiber surface. The resulting fabric exhibits durable antimicrobial properties, achieving a 99.99% antibacterial and antifungal efficacy even after 50 cycles of standard laundering. Notably, the deposition of silver nanoparticles endows the cotton fabric with significant photothermal conversion ability, and facilitates the generation of multiple bactericidal free radicals. These properties enable the effective eradication of bacteria and fungi on the textile surface within 10 min of irradiation with an intensity of 100 mW/cm2. Furthermore, the photothermal antimicrobial fabric retains satisfactory inherent wearability and biocompatibility. The present work provides an alternative for developing robust and durable antimicrobial textiles.开发具有高效和持久抗菌性能的纺织品对于减轻医疗交叉感染和满足日益增长的公共卫生需求至关重要。本文展示了一种有效的方法，通过动态聚二硫化物辅助原位还原和纳米银的封装来制备具有强大抗菌性能的生物相容性复合纺织品。通过γ-氨基丙基三乙氧基硅烷与α-硫辛酸（ALA）序接枝，在棉花表面建立了还原平台。随后，利用ALA单元内的氨基和动态生成的巯基来启动银离子的还原，而无需额外的还原剂，从而在纤维表面形成稳定的抗菌基质层。由此产生的织物具有持久的抗菌性能，即使经过50次标准洗涤，也能达到99.99%的抗菌和抗真菌功效。值得注意的是，纳米银粒子的沉积使棉织物具有显著的光热转化能力，并有利于多种杀菌自由基的产生。这些特性使织物表面的细菌和真菌在100毫瓦/平方厘米照射10分钟内有效根除。此外，光热抗菌织物保留令人满意的固有耐磨性和生物相容性。目前的工作为开发坚固耐用的抗菌纺织品提供了另一种选择。来源：复合材料力学仿真Composites FEM