Composites Part A: Applied Science and Manufacturing最新文献_第2页

Structural design and simulation analysis of an integrated composite drive shaft with a variable-thickness membrane disk 带变厚膜盘的综合复合材料传动轴结构设计与仿真分析

IF 8.1 2区材料科学 Q1 ENGINEERING, MANUFACTURING

Composites Part A: Applied Science and Manufacturing

Pub Date : 2026-04-01 Epub Date: 2025-12-27 DOI: 10.1016/j.compositesa.2025.109545

Lan Zhang , Weifang Chen , Dan Wang , Junmi Long , Huiyang Nie

In response to the requirements for modern high-speed helicopters, including high-torque capacity, significant angular misalignment compensation, and lightweight design, this paper proposes an integrated composite drive shaft design method incorporating a variable-thickness membrane disk. Firstly, Draw on existing mature ply schemes to undertake the new drive shaft design. Subsequently, by comparing the angular compensation capabilities of rectangular, circular, tapered, and trapezoidal membrane disk configurations, the optimal configuration is selected. The specific dimensional parameters of this configuration are then determined using a co-simulation optimization approach integrating ABAQUS and Isight. On this basis, guided by the principle of equal stress distribution on the membrane disk surface under extreme working conditions, a variable-thickness disk profile is designed by adopting a stepwise discrete ply-drop-off methodology from the inner to the outer region, ensuring the continuity of the primary fibers. Furthermore, finite element analysis is performed to evaluate the strength and modal characteristics of the integrated drive shaft. Experimental validation of its modal and stiffness properties is conducted, and the close agreement between the experimental results and theoretical analyses confirms the effectiveness and feasibility of the proposed design method. The findings of this study can provide a theoretical foundation for the design of drive shafts for high-speed helicopters.

针对现代高速直升机对传动轴大扭矩、角对差补偿显著、轻量化设计的要求，提出了一种含变厚膜盘的复合材料传动轴综合设计方法。首先，借鉴现有成熟的铺层方案进行新的传动轴设计。随后，通过比较矩形、圆形、锥形和梯形膜盘结构的角度补偿能力，选择出最优膜盘结构。然后使用集成ABAQUS和Isight的联合仿真优化方法确定该配置的具体尺寸参数。在此基础上，根据极端工况下膜盘表面应力分布均匀的原理，采用由内到外逐步离散的压降法设计变厚膜盘廓形，保证原纤维的连续性。此外，还进行了有限元分析，以评估集成传动轴的强度和模态特性。对其模态和刚度特性进行了实验验证，实验结果与理论分析结果吻合较好，证实了所提设计方法的有效性和可行性。研究结果可为高速直升机传动轴的设计提供理论依据。

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引用次数: 0

Panoramic view of interface-related hygrothermal aging for ramie/PLA composites by time-series decoupling analysis 基于时间序列解耦分析的苎麻/PLA复合材料界面相关湿热老化全景图

IF 8.1 2区材料科学 Q1 ENGINEERING, MANUFACTURING

Composites Part A: Applied Science and Manufacturing

Pub Date : 2026-04-01 Epub Date: 2026-01-20 DOI: 10.1016/j.compositesa.2026.109591

Lamei Wang , Baozhong Sun , Ming Cai , Bohong Gu

Understanding the interface-related behaviors at the nanoscale is beneficial for controlling the hygrothermal deterioration of plant fiber reinforced composites. This study decoupled the initial water absorption and later matrix hydrolysis at the hygrothermal periods with molecular dynamics simulation. Then, the interfacial tensile properties of ramie fiber reinforced polylactic acid (PLA) composites were revealed with numerical simulation and microscale experiment. Results show that the interfacial moisture invasion increased the displacement of the PLA centroid, and decreased the number of cellulose-PLA hydrogen bonds (HBs) and the PLA-cellulose adhesion work, which led to a decline in interfacial adhesion performance. The interfacial water content was characterized by the thickness of the water layer. The interfacial tensile damage increased at the water_4Å, 6Å, and 8Å interface, while it decreased at the water_2Å interface. After PLA hydrolysis during the later hygrothermal period, the interfacial damage changed from initial adhesion damage (0 % PLA hydrolysis degree) to mixed adhesion-cohesion damage (5 % PLA hydrolysis degree), and then to cohesion damage (15–50 % PLA hydrolysis degree). The cohesive damage percentage was affected by the PLA hydrolysis degree and interfacial damage behavior. The breakage of the cellulose-PLA HBs and PLA-PLA HBs was the tensile-damage behaviors at the aqueous interface and the PLA hydrolysis interface, respectively. The interfacial tensile damage behavior in the MD simulation was observed in the microscale experiment.

在纳米尺度上了解界面相关行为有助于控制植物纤维增强复合材料的湿热劣化。本研究通过分子动力学模拟将初始吸水和后期基质水解解耦。然后，通过数值模拟和微尺度实验揭示了苎麻纤维增强聚乳酸（PLA）复合材料的界面拉伸性能。结果表明：界面水分的侵入增加了PLA质心的位移，减少了纤维素-PLA氢键（HBs）的数量和PLA-纤维素的粘附功，导致界面粘附性能下降；界面含水量由水层厚度表征。界面拉伸损伤在water_4Å、6Å和8Å界面处增大，在water_2Å界面处减小。在后期湿热期PLA水解后，界面损伤由初始黏附损伤（PLA水解度为0%）到黏附-内聚混合损伤（PLA水解度为5%），再到黏附损伤（PLA水解度为15 ~ 50%）。聚乳酸水解程度和界面损伤行为影响黏结损伤率。纤维素-PLA HBs和PLA-PLA HBs的断裂分别表现为水界面和PLA水解界面的拉伸损伤行为。在微尺度实验中观察了MD模拟中界面的拉伸损伤行为。

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引用次数: 0

Flexible positive temperature coefficient composites with low transformation point by constructing 3D polymer skeleton 通过构建三维聚合物骨架，实现低转变点柔性正温度系数复合材料

IF 8.1 2区材料科学 Q1 ENGINEERING, MANUFACTURING

Composites Part A: Applied Science and Manufacturing

Pub Date : 2026-04-01 Epub Date: 2026-01-20 DOI: 10.1016/j.compositesa.2026.109593

Gui-Lin Song , Jun-Hao Bai , Yu-Tong Qiao , Ling Xu , Run-Pan Nie , Li-Chuan Jia , Ding-Xiang Yan , Zhong-Ming Li

Positive temperature coefficient (PTC) composites are currently employed extensively in various electrical equipment (e.g., power battery, artificial satellite, and optical instrument) due to their self-adaptive temperature control capability. However, it remains challenging to develop PTC composites that can simultaneously achieve high flexibility and low transformation point. Herein, we report the successful fabrication of flexible PTC composites with low transformation point by adopting a 3D interconnected Ecoflex skeleton to support carbon black (CB) and lauric acid (LA) components. The CB@LA/Ecoflex composite with 14 wt% CB content achieves a low room-temperature resistivity of 1.6 Ω·m and a remarkable PTC intensity of 2.5. In addition, the composite reaches a stable equilibrium temperature of ∼ 23.5 ℃ within 600 s, exhibiting a variation of only 0.038 °C when subjected to an ambient temperature of −10 °C and an applied voltages of 30 V. It is also demonstrated that the CB@LA/Ecoflex composites possess excellent flexibility and cyclic stability. This remarkable comprehensive performance demonstrates the promise of the CB@LA/Ecoflex composites in the thermal control of advanced electrical equipment.

正温度系数（PTC）复合材料由于具有自适应温度控制能力，目前广泛应用于各种电气设备（如动力电池、人造卫星和光学仪器）中。然而，如何同时实现高柔韧性和低转变点的PTC复合材料仍是一个挑战。本文报道了采用三维互联Ecoflex骨架支撑炭黑（CB）和月桂酸（LA）组分，成功制备了低转变点柔性PTC复合材料。含有14 wt% CB的CB@LA/Ecoflex复合材料的室温电阻率为1.6 Ω·m， PTC强度为2.5。此外，该复合材料在600秒内达到稳定的平衡温度~ 23.5℃，当环境温度为- 10℃，外加电压为30 V时，其变化仅为0.038℃。结果表明，CB@LA/Ecoflex复合材料具有良好的柔韧性和循环稳定性。这种卓越的综合性能证明了CB@LA/Ecoflex复合材料在先进电气设备热控制方面的前景。

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引用次数: 0

Stress-state and strain-rate dependency of fracture in SCFR-PEEK composites under biaxial loading 双轴载荷下SCFR-PEEK复合材料断裂的应力状态与应变速率关系

IF 8.1 2区材料科学 Q1 ENGINEERING, MANUFACTURING

Composites Part A: Applied Science and Manufacturing

Pub Date : 2026-04-01 Epub Date: 2026-01-21 DOI: 10.1016/j.compositesa.2026.109594

Wencheng Liu , Xinghao Li , Hang Dong , Yong Pang , Yulong Li , Huanming Chen , Hao Cui

This study presents a hybrid experimental-modelling framework to investigate the anisotropic deformation, strain-rate sensitivity, and fracture behaviour of short carbon fibre reinforced polyether-ether-ketone (SCFR-PEEK) composites subjected to in-plane multiaxial loading. Quasi-static uniaxial and biaxial tensile responses were characterised using an electromechanical biaxial testing system, while dynamic uniaxial and biaxial tensile tests were conducted using an electromagnetic biaxial split Hopkinson bar (EBSHB) apparatus, enabling systematic assessment of material behaviour over a wide range of strain rates. The comprehensive experimental dataset formed the basis for the development of a phenomenological anisotropic elastoplastic constitutive model capable of reproducing rate-dependent deformation and fracture responses under diverse stress states. The proposed model integrates orthotropic elastic properties, an anisotropic yield function, a strain-rate dependent hardening law, and a stress-state dependent anisotropic fracture criterion. Model parameters were identified from uniaxial and biaxial tensile tests that explicitly account for fibre alignment and directional anisotropy, and were calibrated separately for quasi-static and dynamic regimes to ensure predictive consistency across loading rates. The coupled constitutive and fracture framework was implemented within a finite-element framework to enable high-fidelity simulation of anisotropic elastoplastic deformation and fracture under complex multiaxial loading paths. Model validation was performed through quasi-static Nakajima tests and dynamic drop-weight impact experiments involving biaxial stress states. The simulations show good agreement with experimental observations in terms of deformation evolution, strain localisation, and fracture initiation. The developed framework therefore provides a robust and versatile tool for predictive simulation of coupled deformation and fracture processes in SCFR-PEEK composites under realistic multiaxial and rate-dependent loading conditions.

本研究提出了一种混合实验-模型框架来研究短碳纤维增强聚醚醚酮（SCFR-PEEK）复合材料在平面内多轴载荷作用下的各向异性变形、应变率敏感性和断裂行为。准静态单轴和双轴拉伸响应使用机电双轴测试系统进行表征，而动态单轴和双轴拉伸测试使用电磁双轴分裂霍普金森杆（EBSHB）设备进行，能够在广泛的应变率范围内系统评估材料行为。综合实验数据集为开发现象学各向异性弹塑性本构模型奠定了基础，该模型能够再现不同应力状态下的速率相关变形和断裂响应。该模型集成了正交各向异性弹性特性、各向异性屈服函数、应变率相关的硬化规律和应力状态相关的各向异性断裂准则。模型参数是从单轴和双轴拉伸测试中确定的，这些测试明确考虑了纤维的排列和方向各向异性，并分别针对准静态和动态机制进行了校准，以确保在不同加载速率下的预测一致性。在有限元框架内实现了本构与断裂耦合框架，实现了复杂多轴加载路径下各向异性弹塑性变形与断裂的高保真模拟。通过准静态Nakajima试验和双轴应力状态下的动态落锤冲击试验对模型进行验证。在变形演化、应变局部化和断裂起裂方面，模拟结果与实验结果吻合较好。因此，开发的框架为SCFR-PEEK复合材料在实际多轴和速率相关加载条件下的耦合变形和断裂过程的预测模拟提供了一个强大而通用的工具。

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引用次数: 0

Advancing regenerated leather from waste leather fibers: Robustness and thermal/water comfort 推进再生皮革从废皮革纤维：坚固性和热/水舒适性

IF 8.1 2区材料科学 Q1 ENGINEERING, MANUFACTURING

Composites Part A: Applied Science and Manufacturing

Pub Date : 2026-04-01 Epub Date: 2026-01-06 DOI: 10.1016/j.compositesa.2026.109566

Zhishuang Zhu, Youjia Yang, Guixiang Ding, Xiaoxia Lin, Liulian Huang, Jianguo Li, Lihui Chen

The growing demand for leather has led to large quantities of waste leather fibers (WLFs), posing environmental concerns. Regenerated leather (RL) prepared from WLFs offers a sustainable solution, yet dry-forming methods often yield low strength, poor uniformity, and low efficiency. Here, we developed strong, uniform, and cost-effective regenerated leather (CPRL) via a wet-forming process combining hot-pressing, densification, and macromolecular crosslinking with the cationic polyacrylamide (CPAM). Hot-pressing densifies the structure and enhances hydrogen bonding, and correspondingly increases tensile strength from 0.05 N/m² to 3.19 N/m², tear strength from 0.39 N/mm to 9.44 N/mm, and bursting strength from 0.89 N/mm to 16.80 N/mm. Subsequent the CPAM crosslinking further increases tensile strength to 6.16 N/m², tear strength to 18.11 N/mm, and burst strength to 54.86N/mm. Except for the increased hydrogen bonding, the CPAM additionally enables the strong electrostatic interactions, thus yielding superior mechanical performance of CPRL and hydrophobicity (water contact angle of 115.1°). In addition, the CPRL also exhibits higher thermal conductivity (from 0.078 to 0.152 W/m·K⁻¹) and faster water evaporation (from 0.062 to 0.44 g/min), and correspondingly demonstrates thermal and moisture comfort. The developed wet-forming methodology opens a new door for manufacturing high-performance regenerated leather from the WLFs toward useful applications.

对皮革日益增长的需求导致了大量的废弃皮革纤维（WLFs），引起了环境问题。由wlf制备的再生皮革（RL）提供了可持续的解决方案，但干燥成型方法通常强度低，均匀性差，效率低。在这里，我们通过热压、致密化和阳离子聚丙烯酰胺（CPAM）的大分子交联相结合的湿成型工艺，开发出了坚固、均匀且具有成本效益的再生皮革（CPRL）。热压使结构致密，氢键增强，抗拉强度由0.05 N/m2提高到3.19 N/m2，撕裂强度由0.39 N/mm提高到9.44 N/mm，破裂强度由0.89 N/mm提高到16.80 N/mm。随后，CPAM交联进一步提高抗拉强度至6.16 N/m2，撕裂强度至18.11 N/mm，破裂强度至54.86N/mm。除了增加氢键外，CPAM还使其具有较强的静电相互作用，从而具有优异的CPRL力学性能和疏水性（水接触角为115.1°）。此外，CPRL还具有较高的导热系数（从0.078到0.152 W/m·K−1）和更快的水分蒸发（从0.062到0.44 g/min），并具有相应的热湿舒适性。开发的湿成型方法为制造高性能再生皮革打开了一扇新的大门，从WLFs到有用的应用。

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引用次数: 0

Lowering the cement content of ultra-high-performance fiber-reinforced lightweight concrete by replacing hollow glass microspheres 通过替代中空玻璃微珠降低超高性能纤维增强轻量化混凝土的水泥含量

IF 8.1 2区材料科学 Q1 ENGINEERING, MANUFACTURING

Composites Part A: Applied Science and Manufacturing

Pub Date : 2026-04-01 Epub Date: 2026-01-05 DOI: 10.1016/j.compositesa.2026.109554

Van Thanh Huynh , Tuan Kiet Tran , Duy-Liem Nguyen , Van Thong Nguyen , Ngoc Thanh Tran

This study presents a novel ultra-high-performance lightweight concrete (UHPLC) mix that significantly reduces cement content through a high-volume replacement with hollow glass microspheres (HGM). Cement was partially replaced with the lightweight material HGM at five volume-based replacement levels, 0 %, 20 %, 40 %, 60 %, and 70 %, for UHPLC production. Moreover, three curing methods (hot water, normal water, and combined water) and three curing ages (7, 14, and 28 days) were evaluated. Additionally, two types of high-strength steel fibers with a 1.5 % volume content, namely long smooth and short smooth fibers, were incorporated into the UHPLC. Experimental results demonstrated that among the different HGM replacement levels, only the UHPLC with 60 % HGM (H60) achieved outstanding simultaneous performance, including a flowability between 200 and 250 mm, a density below 1920 kg/m³, a compressive strength exceeding 120 MPa, and a flexural strength greater than 14 MPa. Moreover, the inclusion of 1.5 % steel fibers further enhanced the compressive strength of H60 to 166 MPa and the flexural strength to 40 MPa. Furthermore, H60 maintained excellent performance across all curing methods and ages, indicating its suitability for both precast and on-site structural applications, as well as for early strength development in construction. Specifically, H60, containing a low cement content (331 kg/m³) and low HGM content (66 kg/m³), exhibited significant advantages in terms of cost reduction, CO₂ emission mitigation, and energy savings compared with previously developed UHPLCs reported in earlier studies.

本研究提出了一种新型的超高性能轻质混凝土（UHPLC）混合物，通过大量替换中空玻璃微球（HGM）显著减少水泥含量。在UHPLC生产中，水泥部分被轻质材料HGM替代，替代率为0%、20%、40%、60%和70%。并对三种养护方法（热水、普通水和混合水）和三种养护龄期（7、14和28天）进行了评价。此外，在UHPLC中加入了两种体积含量为1.5%的高强钢纤维，即长光滑纤维和短光滑纤维。实验结果表明，在不同的HGM替换水平中，只有60% HGM （H60）的UHPLC具有出色的同时性能，包括流动性在200 ~ 250 mm之间，密度低于1920 kg/m3，抗压强度超过120 MPa，抗弯强度大于14 MPa。此外，1.5%钢纤维的掺入进一步提高了H60至166mpa的抗压强度和40mpa的抗弯强度。此外，H60在所有养护方法和龄期中都保持了优异的性能，这表明它适用于预制和现场结构应用，以及施工中的早期强度发展。具体而言，与早期研究中报道的先前开发的超高效液相色谱相比，含有低水泥含量（331 kg/m3）和低HGM含量（66 kg/m3）的H60在降低成本、减少二氧化碳排放和节约能源方面具有显著优势。

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引用次数: 0

Inverse design of constituent materials of 3D hybrid woven composites for tailored effective properties using reduced order model and genetic algorithm 基于降阶模型和遗传算法的三维杂化机织复合材料有效性能反设计

IF 8.1 2区材料科学 Q1 ENGINEERING, MANUFACTURING

Composites Part A: Applied Science and Manufacturing

Pub Date : 2026-04-01 Epub Date: 2026-01-24 DOI: 10.1016/j.compositesa.2026.109601

Shilian Sun , Weijie Zhang , Ying Yan , Xi Zou , Shibo Yan

3D hybrid woven composites can exhibit superior mechanical performance compared to non-hybrid counterparts, due to synergistic effects arising from the combination of fibres with different properties. However, the design space of such materials expands exponentially with the number of yarns and candidate fibre types, rendering trial-and-error approaches impractical for identifying a global optimum within this vast parameter space. In this work, we propose an efficient inverse design framework for tailoring the effective properties of 3D woven hybrid composites through the selection of constituent materials. The framework integrates a genetic algorithm as an optimiser to automatically search for optimal constituent material combinations, while employing a reduced order model generated by the proper generalised decomposition method as a rapid forward predictor of effective properties during iterations. The proposed inverse design framework was verified through a case study on 3D hybrid orthogonal woven composites, involving a design space of one million potential combinations of constituent materials. The computational time of material characterisation in the inverse design framework results in an acceleration of approximately 122 times compared to the conventional numerical homogenisation in the case study. The results confirm the framework’s ability to efficiently navigate vast design spaces to identify optimal solutions with high computational performance.

由于不同性能的纤维组合产生的协同效应，与非混杂编织复合材料相比，3D混杂编织复合材料可以表现出优越的机械性能。然而，这种材料的设计空间随着纱线和候选纤维类型的数量呈指数级增长，使得在这种巨大的参数空间内确定全局最优的试错方法不切实际。在这项工作中，我们提出了一个有效的逆向设计框架，通过选择成分材料来定制三维编织混杂复合材料的有效性能。该框架集成了遗传算法作为优化器来自动搜索最佳成分材料组合，同时采用由适当的广义分解方法生成的降阶模型作为迭代期间有效特性的快速前向预测器。通过三维混合正交编织复合材料的案例研究，验证了所提出的反设计框架，涉及100万种组成材料的潜在组合的设计空间。与案例研究中的传统数值均匀化相比，在反设计框架中材料表征的计算时间导致加速度约为122倍。结果证实了该框架能够有效地导航巨大的设计空间，以确定具有高计算性能的最佳解决方案。

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引用次数: 0

Multiscale computational modelling of novel 3D printed structure of cellulose nanocrystal-reinforced polymer composites 新型纤维素纳米晶增强聚合物复合材料3D打印结构的多尺度计算建模

IF 8.1 2区材料科学 Q1 ENGINEERING, MANUFACTURING

Composites Part A: Applied Science and Manufacturing

Pub Date : 2026-04-01 Epub Date: 2026-01-26 DOI: 10.1016/j.compositesa.2026.109605

Koshi Iwata , Chao Luo , Yasutomo Uetsuji

A novel concept of highly cellulose nanocrystal (CNC)-filled filament-reinforced polymer composite was proposed to enhance the mechanical properties of biocomposites. A multiscale finite element analysis based on homogenization theory was applied to clarify the nonlinear content dependence of the mechanical properties of unidirectionally-oriented CNC-filled polylactic acid (PLA) filaments. The computation demonstrated the superiority of filament-reinforced composites, with Young’s modulus and maximum stress improved by 16.9% and 27.6%, respectively, compared with conventional uniformly-dispersed composites. Then the effects of local CNC content in filament and global CNC content in composite were clarified as design guidelines for enhancing nonlinear mechanical properties. Furthermore, the proposed concept was applied to fused filament fabrication, and its effect on mechanical properties was clarified.

为了提高生物复合材料的力学性能，提出了高纤维素纳米晶（CNC）填充长丝增强聚合物复合材料的新概念。采用基于均质化理论的多尺度有限元分析方法，阐明了单向cnc填充聚乳酸（PLA）长丝力学性能的非线性含量依赖关系。计算结果表明，长丝增强复合材料的杨氏模量和最大应力分别比常规均匀分散复合材料提高了16.9%和27.6%。阐明了长丝中局部CNC含量和复合材料中整体CNC含量对复合材料非线性力学性能的影响。并将该概念应用于熔断丝的制备，阐明了熔断丝对其力学性能的影响。

引用次数: 0

Hyperbranched polyborosiloxane as a multifunctional flame retardant for simultaneously enhancing fire safety, mechanical properties, and hydrophobicity of polycarbonate 超支化聚硼硅氧烷作为一种多功能阻燃剂，可同时提高聚碳酸酯的防火安全性、机械性能和疏水性

IF 8.1 2区材料科学 Q1 ENGINEERING, MANUFACTURING

Composites Part A: Applied Science and Manufacturing

Pub Date : 2026-04-01 Epub Date: 2026-01-26 DOI: 10.1016/j.compositesa.2026.109606

Yixiao Shi, Guang Li, Jiaen Qian, Jiafeng Lu, Qinghua Pan, Yanjiang Song, Hong Dong, Chuan Wu

Polycarbonate (PC) is widely used in applications that require optical transparency and fire safety; however, conventional flame retardants often compromise its mechanical properties and clarity. In this study, a series of hyperbranched polyborosiloxanes (PBS) with varying boron-to-silicon ratios was synthesized via a one-step dehydration condensation reaction. The effects of PBS on the flame-retardant performance, mechanical properties, optical transparency, and hydrophobicity of PC were systematically investigated. Results demonstrated that PBS-C, with the highest boron content, significantly improved the flame retardancy of PC. At a loading of 6 wt%, the PC/PBS-C6 composite achieved a UL-94V-0 rating and a high limiting oxygen index (LOI) of 40.3. Cone calorimetry tests revealed reductions in peak heat release rate (PHRR) and total heat release (THR) by 35.9% and 15.7%, respectively. Moreover, the composite exhibited enhanced mechanical properties, with flexural strength and impact strength increasing by 28.8% and 21.9%, respectively. The incorporation of PBS also improved the hydrophobicity (water contact angle up to 108.86°) while maintaining high optical transmittance (>83%). This work presents a promising strategy for developing high-performance PC composites with balanced flame retardancy, mechanical strength, and transparency.

聚碳酸酯（PC）广泛用于要求光学透明度和防火安全的应用；然而，传统的阻燃剂往往会损害其机械性能和透明度。本研究通过一步脱水缩合反应合成了一系列不同硼硅比的超支化聚硼硅氧烷（PBS）。系统研究了PBS对PC的阻燃性能、力学性能、光学透明度和疏水性的影响。结果表明，硼含量最高的PBS-C显著提高了PC的阻燃性。在负载为6 wt%时，PC/PBS-C6复合材料达到了UL-94V-0额定值和40.3的高极限氧指数（LOI）。锥量热测试显示，峰值放热率（PHRR）和总放热率（THR）分别降低了35.9%和15.7%。此外，复合材料的力学性能也得到了增强，抗弯强度和冲击强度分别提高了28.8%和21.9%。PBS的掺入也提高了疏水性（水接触角高达108.86°），同时保持了较高的透光率（>83%）。这项工作为开发具有平衡阻燃性，机械强度和透明度的高性能PC复合材料提供了一个有前途的策略。

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引用次数: 0

Tunable dual-driven photothermal/electrothermal textile heater for personal thermal management 可调谐双驱动光热/电热纺织品加热器个人热管理

IF 8.1 2区材料科学 Q1 ENGINEERING, MANUFACTURING

Composites Part A: Applied Science and Manufacturing

Pub Date : 2026-04-01 Epub Date: 2026-01-13 DOI: 10.1016/j.compositesa.2026.109583

Weiyi Han , Jialing Tan , Hongkun Zhu , Tao Wu , Chaoxia Wang

Against the backdrop of rising global energy consumption and the need for personal thermal management (PTM), developing efficient, multi-modal wearable heaters is crucial to reduce reliance on energy-intensive heating systems. Herein, an MXene-CuS/PANI-GO cotton (MCPGC) fabric is fabricated via a two-step method involving in-situ polymerization of polyaniline with graphene oxide on cotton, followed by dip-coating with MXene-CuS dispersion. The MCPGC fabric exhibits photothermal and electrothermal heating performances, achieving an average surface temperature of 60.20 °C under 1000 W/m² solar irradiation and 57.54 °C under an applied voltage of 4.5 V. Furthermore, a significant synergistic heating effect is observed under simultaneous photothermal and electrothermal activation, with the surface temperature reaching 84.13 °C. A tunable dual-driven textile heater is subsequently constructed by integrating the MCPGC fabric with a microcontroller-based automatic conversion system. This configuration effectively maintains the surface temperature of the fabric at user-defined setpoints by autonomously activating electrothermal assistance to compensate for heat deficits under low or fluctuating solar irradiance, as validated by outdoor practical testing. This study successfully develops a dual-driven synergistic textile heater with intelligent thermostatic control, demonstrating potential for energy-saving personal thermal management applications.

在全球能源消耗不断上升和个人热管理（PTM）需求的背景下，开发高效、多模态可穿戴加热器对于减少对能源密集型供暖系统的依赖至关重要。本文采用两步法制备了mxene - cu /PANI-GO棉（MCPGC）织物，首先在棉上原位聚合聚苯胺和氧化石墨烯，然后用mxene - cu分散体浸渍涂层。MCPGC织物具有光热和电热加热性能，在1000 W/m2太阳辐照下平均表面温度为60.20°C，在4.5 V电压下平均表面温度为57.54°C。此外，光热和电热同时激活下，表面温度达到84.13℃，存在显著的协同加热效应。随后，将MCPGC织物与基于微控制器的自动转换系统集成，构建了可调谐双驱动纺织品加热器。这种配置通过自动激活电热辅助来补偿低或波动的太阳辐照度下的热缺陷，有效地将织物的表面温度保持在用户定义的设定值，并经过室外实际测试验证。本研究成功开发了一种具有智能恒温控制的双驱动协同纺织加热器，展示了节能个人热管理应用的潜力。

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