【新文速递】2026年1月1日复合材料SCI期刊最新文章

 

今日更新：Composites Part A: Applied Science and Manufacturing 1 篇，Composites Part B: Engineering 4 篇，Composites Science and Technology 2 篇

Composites Part A: Applied Science and Manufacturing

Reconfigurable anisotropy in highly crosslinked vitrimers enabled by low-stress nanofiller alignment

Zhiqiang Chen, Xubin Wang, Dongyuan Chen

doi:10.1016/j.compositesa.2025.109547

通过低应力纳米填料排列实现高度交联的玻璃聚合物的可重构各向异性

Vitrimers with dynamic covalent networks represent a new generation of composite matrices, offering superior reprocessability, repairability, and recyclability compared with traditional thermosetting resins. Incorporating carbon nanotubes (CNTs) into these matrices holds promise for advanced structural and functional applications due to their exceptional mechanical and electrical properties. Yet, achieving effective CNT alignment for for optimal reinforcement remains a key challenge, as conventional methods such as electric- or magnetic-field-assisted alignment suffer from high energy consumption, complex processing, and limited scalability. Here, we systematically examine the influence of CNT content on the mechanical and thermomechanical performance of vitrimer nanocomposites, highlighting the critical interplay between CNT-induced reinforcement and dynamic bond exchange. We propose a low-stress post-processing alignment strategy for highly cross-linked vitrimers, utilizing time-dependent creep deformation to orient CNTs along the loading direction. Microscopy confirms that adaptive stress-driven molecular rearrangements facilitate effective nanofiller alignment. This approach imparts pronounced mechanical anisotropy, yielding a 20 % increase in tensile strength, a 9.5 % increase in modulus, and a tenfold enhancement in electrical conductivity along the alignment axis. By synergistically coupling dynamic covalent chemistry with thermomechanical activation, this method establishes a versatile post-processing route for fabricating polymer composites with directionally optimized properties.

与传统的热固性树脂相比，具有动态共价网络的玻璃体代表了新一代复合基质，具有优越的可再加工性、可修复性和可回收性。将碳纳米管（CNTs）结合到这些基质中，由于其优异的机械和电气性能，有望在先进的结构和功能应用中发挥作用。然而，实现有效的碳纳米管对准以获得最佳的强化仍然是一个关键的挑战，因为传统的方法，如电场或磁场辅助对准，存在高能耗、复杂的处理和有限的可扩展性。在这里，我们系统地研究了碳纳米管含量对玻璃聚合物纳米复合材料机械和热机械性能的影响，强调了碳纳米管诱导的增强和动态键交换之间的关键相互作用。我们提出了一种低应力后处理策略，用于高度交联的vitrimers，利用随时间的蠕变变形沿加载方向定向碳纳米管。显微镜证实，自适应应力驱动的分子重排促进了有效的纳米填料排列。这种方法具有明显的力学各向异性，抗拉强度提高了20% %，模量提高了9.5% %，沿取向轴的电导率提高了10倍。该方法通过动态共价化学与热机械活化的协同耦合，为制备具有定向优化性能的聚合物复合材料建立了一条通用的后处理路线。

Composites Part B: Engineering

Wear Characteristics and Mechanis m Evaluation of High-speed Petal Magnetic Rotor Series Bearings (HPMRS Bs) in Vacuum

Lai Hu, Wenchao Li, Banhu Li, Baoli Cui, Zixi Wang, Yuming Wang

doi:10.1016/j.composites b.2025.113369

高速花瓣磁转子系列轴承（HPMRS Bs）真空磨损特性及机理评价

Breaking through the speed of high-performance bearings is one of the important studies in the development of high-end equipment. The study of wear performance under various gases is helpful to improve the speed of series bearings. In this study, the ana lysis of shape-position error and surface performance of high-speed petal magnetic rotor series bearings (HPMRS Bs) in vacuum service at 120000rpm was carried out, and the fretting wear mechanis m under various gases is evaluated. The HPMRS Bs inner ring raceway subsurface wear was 1.5 to 2.5 times greater than the outer raceway subsurface wear. After the wear failure of the inner ring raceway of HPMRS Bs, a nanocrystalline layer with a thickness of about 1500 nm appeared on the surface, which was 3.75 times that of the outer ring raceway. The outer ring was single crystal structure. The nanocrystalline layer of the outer ring raceway of the HPMRS Bs contains 97.9% Fe, 1.69% C and 0.41% O. The poor lubrication and decarburization effect of inner and outer race raceways of HPMRS Bs. The formation of the decarburized layer will lead to the decrease of the surface hardness, the aggravation of wear, and then the increase of temperature, forming a vicious circle. The hardness of the nanocrystalline layer of the inner and outer raceways were 12.816 GPa and 10.268 GPa respectively. For air, argon and nitrogen environments, the coefficient of friction (COF) was relatively stable, and and the maximum changes of the three were 0.93, 1.16 and 1.01, respectively. Therefore, different gas environments can be selected according to the working conditions. Combined with an alytical data, the comprehensive mechanis m an alysis of grinding processing, surface integrity and service life was carried out. The research conclusion of this paper will provide theoretical guidance and data support for the design, manufacture and service failure of high-performance bearings (in different environments).

突破高性能轴承的速度是高端装备发展的重要研究之一。研究各种气体作用下的磨损性能有助于提高系列轴承的转速。对高速花瓣磁转子系列轴承（HPMRS Bs）在120000rpm真空工况下的形位误差和表面性能进行了分析，并对其在不同气体作用下的微动磨损机理进行了评价。HPMRS Bs内圈滚道亚表面磨损量是外圈滚道亚表面磨损量的1.5 ~ 2.5倍。HPMRS Bs内环滚道磨损失效后，表面出现厚度约1500 nm的纳米晶层，是外环滚道的3.75倍。外环为单晶结构。HPMRS Bs外环滚道纳米晶层含铁97.9%，含碳1.69%，含氧0.41%。HPMRS Bs内外环滚道润滑脱碳效果较差。脱碳层的形成会导致表面硬度降低，磨损加剧，进而导致温度升高，形成恶性循环。内外滚道纳米晶层的硬度分别为12.816 GPa和10.268 GPa。在空气、氩气和氮气环境下，摩擦系数（COF）相对稳定，其最大值分别为0.93、1.16和1.01。因此，可根据工况选择不同的气体环境。结合分析数据，对磨削加工、表面完整性和使用寿命进行了综合机理分析。本文的研究结论将为高性能轴承（在不同环境下）的设计、制造和使用故障提供理论指导和数据支持。

The potential and challenges of delignified bamboo fiber as reinforcement for composites: the effects of fiber length, bamboo nodes and PVA treatment on strength

Le Li, Hongmei Li, Yating Chen, Shuyang Jiang, Yilin Shen, Shouqing Liu, Zhengjun Shi, Jing Yang, Taohong Li

doi:10.1016/j.composites b.2025.113370

去木质素竹纤维增强复合材料的潜力和挑战：纤维长度、竹节和PVA处理对强度的影响

Although studies have revealed that delignified bamboo fibers (DBF) exhibit mechanical strength comparable to carbon fibers, this conclusion is based solely on tests conducted on short fibers. The effects of fiber length and bamboo nodes on strength remain relatively unexplored for long fibers, which is crucial in determining whether bamboo fibers can be used to produce large-scale, continuous fiber-reinforced composites. This study addresses these issues by preparing long delignified node-spanning fibers with lengths of ∼120 cm and diameters of 0.15–0.35 mm (aspect ratio ∼3400-8000). A pronounced reduction in strength with fiber length increasing was observed in node-free DBF, and Weibull statistical an alysis confirmed this effect. To mitigate this, a polyvinyl alcohol (PVA) impregnation strategy was employed to produce PVA-strengthened fibers (PVADBF), which effectively repaired internal defects and enhanced the fiber-matrix interface. The PVA treatment significantly improved the mechanical performance of DBF. Taking 30 cm fibers as an example, the characteristic strength (σ0) increased by 42% from 592.81 MPa to 840.97 MPa. Consequently, PVADBF composites exhibited improved mechanical performances compared to DBF composites, with tensile and flexural strengths increased by 19–50% and 7–37%, respectively, depending on the matrix content. However, the bamboo node was identified as a critical weak point for node-spanning fibers, causing a drastic reduction in single-fiber tensile strength and a corresponding drop in composite performance, although strategic fiber blending was shown to effectively mitigate this effect. This study demonstrates the application potential of delignified bamboo fibers in fiber-reinforced composites while also clarifying the associated challenges.

虽然研究表明，去木素竹纤维（DBF）具有与碳纤维相当的机械强度，但这一结论仅基于对短纤维进行的测试。对于长纤维来说，纤维长度和竹节对强度的影响还相对未知，这是决定竹纤维是否可以用于生产大规模、连续纤维增强复合材料的关键。本研究通过制备长度为~ 120 cm，直径为0.15-0.35 mm（长径比为~ 3400-8000）的长去木素节点跨越纤维来解决这些问题。在无节点DBF中，强度随纤维长度的增加而显著降低，Weibull统计分析证实了这一效应。为了解决这一问题，采用聚乙烯醇（PVA）浸渍策略制备了聚乙烯醇增强纤维（PVADBF），该纤维有效地修复了内部缺陷并增强了纤维-基质界面。PVA处理显著改善了DBF的力学性能。以30cm纤维为例，其特征强度（σ0）由592.81 MPa提高到840.97 MPa，提高了42%。因此，与DBF复合材料相比，PVADBF复合材料的力学性能有所提高，根据基体含量的不同，其拉伸强度和弯曲强度分别提高了19-50%和7-37%。然而，竹节点被认为是节点跨越纤维的一个关键弱点，导致单纤维抗拉强度急剧下降，复合材料性能相应下降，尽管战略性纤维混纺被证明可以有效缓解这种影响。本研究展示了去木质素竹纤维在纤维增强复合材料中的应用潜力，同时也阐明了相关的挑战。

GO-PPDA Modified and Aligned PBO Fibers for High-Performance Insulating Core-Rod Composites

Le Li, Chi Wang, Hang Gao, Heyu Wang, Tianqi Lai, Zhuangzhuang Li, Xingdou Li, Wenhua Wu, Lei Yang, Yunpeng Liu

doi:10.1016/j.composites b.2025.113379

用于高性能绝缘芯棒复合材料的GO-PPDA改性PBO纤维

Composite insulators for high-voltage power grids are subject to multiple constraints concerning thermal conductivity, mechanical load-bearing capacity, and electrical insulation reliability. Poly(p-phenylene benzobisoxazole) (PBO) fibers are considered an ideal reinforcement phase owing to their excellent mechanical strength, thermal conductivity, and electrical insulation properties, but their s mooth and inert surface results in poor interfacial adhesion with the epoxy resin matrix. Moreover, the lack of PBO fibers alignment control limits the full exploitation of their thermal conductivity for high-voltage insulation equipment. In this study, a synergistic strategy was developed to modify the PBO fiber surface with aminated graphene oxide (GO-PPDA) and to align the PBO fibers to enhance the interfacial, mechanical, and thermal properties of the resulting fiber-reinforced composite. In experiments, the interfacial shear strength (IFSS) was increased to a maximum of 57.62 MPa, representing a 54% improvement over untreated fibers. Molecular dynamics simulations confirmed, at the atomic scale, that the interfacial binding energy was significantly enhanced after GO-PPDA modification. The thermal conductivity of the composite with aligned fibers reached 1.531 W·m-1·K-1, which is dramatically higher than that of its randomly oriented counterpart .Optimized amination also improved breakdown strength to 32.5 kV·mm-1 while effectively suppressing dielectric loss. Moreover, electrostatic field simulations confirmed that the introduced uniform GO-PPDA contributes to electric field homogenization. Furthermore, the flexural and tensile strengths of the composite were enhanced by 147.9% and 224.4%, respectively. This study provides a systematic design strategy for the development of high-performance insulating core rods for composite insulators.

高压电网用复合绝缘子在导热性、机械承载能力和电绝缘可靠性等方面受到多种限制。聚（对苯基苯并苯恶唑）（PBO）纤维由于其优异的机械强度、导热性和电绝缘性能而被认为是一种理想的增强相，但其光滑和惰性的表面导致其与环氧树脂基体的界面附着力差。此外，PBO纤维排列控制的缺乏限制了其在高压绝缘设备中充分利用其导热性。在这项研究中，开发了一种协同策略，用胺化氧化石墨烯（GO-PPDA）修饰PBO纤维表面，并对齐PBO纤维，以提高所得纤维增强复合材料的界面、机械和热性能。在实验中，界面抗剪强度（IFSS）最高可达57.62 MPa，比未经处理的纤维提高54%。分子动力学模拟证实，在原子尺度上，GO-PPDA修饰后界面结合能明显增强。排列纤维复合材料的导热系数达到1.531 W·m-1·K-1，显著高于随机取向复合材料。优化后的胺化处理将击穿强度提高到32.5 kV·mm-1，同时有效地抑制了介电损耗。此外，静电场模拟证实了引入的均匀GO-PPDA有助于电场的均匀化。此外，复合材料的抗弯强度和抗拉强度分别提高了147.9%和224.4%。本研究为复合绝缘子高性能绝缘芯棒的研制提供了系统的设计策略。

ZrO2 short-fiber-reinforced oxide scale enabling superior cyclic ablation resistance in C/C–ZrC–SiC composites prepared by reaction melt infiltration

Tian Li, Zhiqiang Liu, Yujun Jia, Qingliang Shen, Luncheng Tang, Xiyuan Yao, Ruiyi Su, Hejun Li

doi:10.1016/j.composites b.2025.113380

反应熔浸法制备的C/C - zrc - sic复合材料中ZrO2短纤维增强氧化膜具有优异的抗循环烧蚀性能

Resistance to cyclic ablation is critical for thermal protection system of reusable high-speed vehicles. To address the spallation problem of the oxide scale formed on UHTC-modified C/C composites during cyclic ablation, C/C–ZrC–SiC composites with a ZrO2 short-fiber-reinforced oxide scale (CZS-FOS) were fabricated via reaction melt infiltration (RMI). The stability of the oxide scale under high-temperature scouring conditions was evaluated using an oxyacetylene flame with a heat flux of 4.2 MW/m2. Results demonstrate that CZS-FOS exhibits superior cyclic ablation resistance. Microstructural ana lyses revealed that a "skeleton structure" oxide scale incorporating in-situ-formed ZrO2 short fibers effectively inhibits the crack propagation and oxide scale spallation, thereby protecting the composites from further ablation. By constructing such an oxide-fiber-reinforced oxide scale, this work provides an effective approach to extend the cyclic service life of UHTC-modified C/C composites in extreme environments.

抗循环烧蚀是可重复使用高速车辆热防护系统的关键。为了解决uhtc改性C/C复合材料在循环烧蚀过程中形成氧化垢的剥落问题，采用反应熔体渗透（RMI）法制备了ZrO2短纤维增强氧化垢的C/C - zrc - sic复合材料。采用热流密度为4.2 MW/m2的氧乙炔火焰对氧化垢在高温冲刷条件下的稳定性进行了评价。结果表明，cjs - fos具有良好的抗循环烧蚀性能。显微组织分析表明，含有原位形成的ZrO2短纤维的“骨架结构”氧化皮有效地抑制了裂纹扩展和氧化皮剥落，从而保护复合材料免受进一步烧蚀。通过构建这种氧化纤维增强氧化膜，本工作为延长uhtc改性C/C复合材料在极端环境下的循环使用寿命提供了有效途径。

Composites Science and Technology

A mussel-inspired interfacial engineering strategy for enhancing the mechanical properties of aramid fiber/epoxy composites

Yan Wang, Hao Zhang, Xianhui Dong, Na Li, Yan Wang, Yinjun Chen, Junrong Yu, Zuming Hu, Meifang Zhu

doi:10.1016/j.compscitech.2025.111503

以贻贝为灵感的界面工程策略提高芳纶纤维/环氧复合材料的机械性能

The interfacial strengthening of aramid fiber/epoxy (AF/EP) composites is primarily challenged by the significant modulus mis match between the fibers and matrix. Furthermore, the inherent chemical inertness of AFs results in a scarcity of surface-active sites, which leads to weak interfacial interactions and inefficient stress transfer. Consequently, the overall mechanical performance of fibrous composites was severely limited. Inspired by “mussel adhesive protein”, this study designed and synthesized an amphiphilic organic molecule, dipentaerythritol-2-amino-4-hydroxy-6-methylpyrimidine-hexylisocyanate (DiPE-UPy) as the mussel protein-inspired adhesive, and employed graphene oxide (GO) nanosheets which provide high stiffness and a large specific surface area as ordered crystalline structures in proteins to construct an organic-inorganic hybrid sizing agent via a co-assembly strategy. The hybrid coating established a high-density cross-linking network between AFs and epoxy resin through multiple interactions, including quadruple hydrogen bonding and π-π stacking, thus significantly enhanced interfacial compatibility and synergistic stress transfer efficiency. The results demonstrated that the interfacial shear strength, flexural strength, and tensile strength of the modified AF/EP composites were increased by 87.47 %, 63.02 %, and 44.75 %, respectively, compared to the blank UAF/EP composite. The bio-inspired interface construction strategy provides an efficient and scalable new approach for developing high-performance AF-reinforced composites.

芳纶纤维/环氧树脂（AF/EP）复合材料的界面强化主要受到纤维与基体模量不匹配的挑战。此外，AFs固有的化学惰性导致表面活性位点稀缺，导致界面相互作用弱，应力传递效率低。因此，纤维复合材料的整体力学性能受到严重限制。受“贻贝黏附蛋白”的启发，本研究设计并合成了两亲性有机分子双季戊四醇-2-氨基-4-羟基-6-甲基嘧啶-己基异氰酸酯（DiPE-UPy）作为贻贝蛋白质黏附剂，并利用具有高刚度和大比表面积的氧化石墨烯纳米片作为蛋白质的有序晶体结构，通过共组装策略构建了有机-无机杂化施胶剂。杂化涂层通过四重氢键和π-π堆叠等多种相互作用，在AFs和环氧树脂之间建立了高密度交联网络，显著提高了界面相容性和协同应力传递效率。结果表明，改性后的AF/EP复合材料的界面剪切强度、抗弯强度和抗拉强度分别比空白的UAF/EP复合材料提高了87.47%、63.02%和44.75%。仿生界面构建策略为开发高性能af增强复合材料提供了一种高效、可扩展的新方法。

Towards robust ultrasonic welding of CF/PEEK composite to aluminum hybrid joints

Jiaying Pan, Zhijie Liu, Dong Quan, Dongsheng Yue, Xuemin Wang, Jiaming Liu, Mengmeng Han, Guoqun Zhao

doi:10.1016/j.compscitech.2025.111500

CF/PEEK复合材料与铝杂化接头超声焊接的研究

This study proposes an innovative surface pretreatment strategy to enable robust ultrasonic welding between aluminum alloys and CF/PEEK composites. Specifically, sandblasting and laser ablation were employed to generate distinct microstructures on the aluminum substrate surface, followed by the consolidation of a PEI interlayer through hot pressing. The interlayer attached on the aluminum surface served as an effective coupling medium to promote mechanical interlocking and chemical compatibility during welding. By optimizing the surface treatment parameters and ultrasonic welding displacement, a maximum lap shear strength of 36.4 MPa was achieved in Al-CF/PEEK hybrid joints. Failure a nalysis revealed severe substrate damage in the CF/PEEK adherend, confirming the formation of a strong interfacial interlocking structure between the PEI interlayer and the Al substrate. These findings demonstrate the effectiveness of the proposed pretreatment process and provide a reliable technical pathway for achieving high-performance welding of thermoplastic composite–metal hybrid joints.

本研究提出了一种创新的表面预处理策略，以实现铝合金与CF/PEEK复合材料之间的坚固超声焊接。具体而言，采用喷砂和激光烧蚀在铝基板表面产生不同的微观结构，然后通过热压固化PEI中间层。附着在铝表面的中间层作为有效的耦合介质，促进了焊接过程中的机械联锁和化学相容性。通过优化表面处理参数和超声焊接位移，Al-CF/PEEK复合接头的最大搭接抗剪强度达到36.4 MPa。失效分析显示CF/PEEK粘附体中衬底严重损坏，证实PEI夹层与Al衬底之间形成了强界面联锁结构。研究结果验证了该预处理工艺的有效性，为实现热塑性复合材料-金属杂化接头的高性能焊接提供了可靠的技术途径。