【新文速递】2024年2月29日复合材料SCI期刊最新文章

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今日更新：Composites Part A: Applied Science and Manufacturing 1 篇，Composites Part B: Engineering 3 篇，Composites Science and Technology 1 篇

Composites Part A: Applied Science and Manufacturing

Stochastic modelling of out-of-autoclave epoxy composite cure cycles under uncertainty

Molly Hall, Xuesen Zeng, Tristan Shelley, Peter Schubel

doi:10.1016/j.compositesa.2024.108110

不确定情况下高压釜外环氧树脂复合材料固化周期的随机建模

Thermoset polymers and composites are subject to several sources of uncertainty which can produce a range of cure outcomes. Recent research into stochastically modelled thermoset cure has indicated that accounting for raw material and process uncertainty can model this range of expected output parameters. However, the uncertainty quantification methods are highly test-intensive, and the results of the simulations have been validated with limited experimental data. This study proposes a simple approach to cure kinetics uncertainty quantification that can be applied to any cure kinetics model without the need for additional testing. Stochastic cure kinetics and temperature conditions for a popular out-of-autoclave carbon fibre/epoxy prepreg were used to produce output distribution functions for key cure events, and the results were validated using data from ten cure replicates. The quantified variation expected from the cure of this prepreg resulted in processing recommendations to ensure quality metrics are met during processing.

热固性聚合物和复合材料受多种不确定因素的影响，会产生一系列固化结果。最近对热固性固化随机建模的研究表明，考虑到原材料和工艺的不确定性，可以对这一系列预期的输出参数进行建模。然而，不确定性量化方法需要大量测试，而且模拟结果只能通过有限的实验数据进行验证。本研究提出了一种简单的固化动力学不确定性量化方法，可用于任何固化动力学模型，无需额外测试。针对一种常用的高压釜外碳纤维/环氧树脂预浸料，采用随机固化动力学和温度条件来生成关键固化事件的输出分布函数，并利用十次固化重复的数据对结果进行了验证。对该预浸料固化过程中的预期变化进行量化后，提出了加工建议，以确保在加工过程中达到质量指标。

Composites Part B: Engineering

Strain-rate dependent mixed-mode traction laws for glass fiber-epoxy interphase using molecular dynamics simulations

Sanjib C. Chowdhury, John W. Gillespie

doi:10.1016/j.compositesb.2024.111351

利用分子动力学模拟玻璃纤维-环氧树脂间相的应变速率相关混合模式牵引定律

In this paper, we establish a methodology to predict strain rate-dependent mixed-mode traction-separation responses (i.e., traction laws) for glass-epoxy composite interphase using molecular dynamics (MD) simulations. Glass-epoxy interphases with monolayer glycidoxypropyltrimethoxy silane are prepared by varying silane number density from 0.0 nm−2 to 3.9 nm−2 following the epoxy-amine diffusion and curing reactions. To established the effects of strain rate and mode-mixity on the interphase traction laws, the nano-meter size interphase domain is loaded in various mode-mixity (θ = 0° (Mode−II), 15°, 30°, 45°, 60°, and 90° (Mode−I)) with full range of strain rates from quasit-static to high strain rate (∼1e16/s) where a theoretical plateau strength limit is predicted. Following our previous work on Mode-I [Chowdhury et al., Composites Part B 237 (2022) 109877], mathematical model is developed for Mode-II as function of strain rate for different interphase structures (i.e., silane number density). The continuum equivalent bi-linear cohesive traction law is developed using the MD results to determine the mode-mixity quadratic functions and associated exponents for peak tractions, energy absorption, crack initiation and crack opening displacement from the mixed-mode simulations data. The MD predicted traction laws can be used to model interphase in micromechanics finite element analysis to bridge the length scale for the prediction of fiber-matrix debonding in composites.

在本文中，我们建立了一种方法，利用分子动力学（MD）模拟来预测玻璃-环氧复合材料相间的应变速率依赖性混合模式牵引分离响应（即牵引定律）。在环氧胺扩散和固化反应之后，通过改变硅烷数量密度（从 0.0 nm-2 到 3.9 nm-2），制备了具有单层缩水甘油氧丙基三甲氧基硅烷的玻璃-环氧中间相。为了确定应变速率和模式混合度对相间牵引力规律的影响，在不同的模式混合度（θ = 0° (Mode-II)、15°、30°、45°、60°和 90° (Mode-I)）和从准静态到高应变速率（∼1e16/s）的全范围应变速率下加载了纳米级相间域，并预测了理论上的高原强度极限。根据我们之前关于模式 I 的研究成果[Chowdhury 等人，Composites Part B 237 (2022) 109877]，针对不同的相间结构（即硅烷数量密度），建立了模式 II 的数学模型，并将其作为应变速率的函数。利用 MD 结果开发了连续等效双线性内聚牵引定律，以从混合模式模拟数据中确定模式-混合二次函数以及峰值牵引、能量吸收、裂纹起始和裂纹张开位移的相关指数。MD 预测的牵引定律可用于在微观力学有限元分析中建立相间模型，从而弥合复合材料中纤维-基体脱粘预测的长度尺度。

Abundant nucleation sites-available liquid crystal hydrogel mimics bone ECM mineralization to boost osteogenesis

Lin Li, Kun Liu, Yating Lin, Wei Wen, Shan Ding, Mingxian Liu, Changren Zhou, Binghong Luo

doi:10.1016/j.compositesb.2024.111340

丰富的成核点--可用液晶水凝胶模拟骨 ECM 矿化，促进骨生成

Bone extracellular matrix (ECM) is a unique organic-inorganic composite material derived from highly mineralized liquid crystal (LC) organic substrate. However, it remains a substantial challenge to design bone ECM-like LC materials with sufficient available nucleation sites to mimic the mineralization process of natural bone. Herein, we designed a bioinspired hydrogel with bone ECM-like LC organic substrate and inorganic phosphate mineralization nucleation sites for robust cell biomineralization and bone regeneration. Black phosphorus (BP) nanosheet was firstly loaded by bioactive layered double hydroxide (LDH) based on electrostatic attraction to improve the stability and photothermal performance of BP. Then, the LDH@BP was creatively added into chitin whisker/poly (ethylene glycol) diacrylate (CHW/PEGDA) LC hydrogel, abbreviated as LCgel, to fabricate LCgel/LDH@BP to highly mimic the mineralization microenvironment of bone ECM. The bone ECM-like LC topology of LCgel/LDH@BP is conducive to facilitating cell adhesion, proliferation and osteogenic differentiation. More importantly, the in-situ phosphate mineralization nucleation sites combined with mild hyperthermia induced by BP can further synergistically reinforce biomineralization of cells adhered on bone ECM-like LC substrate, thus substantially promoting cell biomineralization-mediated osteogenesis in vitro and in vivo. This study opens a new insight for the design of bioinspired hydrogel for cell biomineralization-mediated osteogenesis.

骨细胞外基质（ECM）是一种独特的有机-无机复合材料，由高度矿化的液晶（LC）有机基质衍生而来。然而，设计具有足够可用成核位点的类骨 ECM LC 材料以模拟天然骨骼的矿化过程仍是一项巨大挑战。在此，我们设计了一种生物启发水凝胶，该水凝胶具有类似骨 ECM 的液晶有机基底和无机磷酸盐矿化成核位点，可促进细胞生物矿化和骨再生。黑磷（BP）纳米片首先被基于静电吸引的生物活性层状双氢氧化物（LDH）负载，以提高 BP 的稳定性和光热性能。然后，创造性地将 LDH@BP 添加到甲壳素晶须/聚（乙二醇）二丙烯酸酯（CHW/PEGDA）LC 水凝胶（简称 LCgel）中，制成 LCgel/LDH@BP，高度模拟骨 ECM 的矿化微环境。LCgel/LDH@BP 类似骨 ECM 的 LC 拓扑结构有利于促进细胞粘附、增殖和成骨分化。更重要的是，原位磷酸盐矿化成核点与 BP 诱导的轻度高热相结合，可进一步协同强化粘附在骨 ECM 类 LC 基底上的细胞的生物矿化，从而大大促进细胞生物矿化介导的体外和体内成骨过程。这项研究为设计用于细胞生物矿化介导的成骨的生物启发水凝胶提供了新的思路。

Enhancing mechanical performance and high-temperature lubrication enabled by MoS2/WB2 nanolayered films

Zhenrong Gao, Weiming Nie, Haixin Wang, Siming Ren, Dali Du, ShiYu Du, Jinlong Li

doi:10.1016/j.compositesb.2024.111350

利用 MoS2/WB2 纳米层薄膜提高机械性能和高温润滑性能

Molybdenum disulfide (MoS2) films are widespread application in aerospace, nuclear, mechanical, and electronic fields owing to their unique structural characteristics and inherent interlayer slip. However, their utility is hindered by environmental susceptibility, particularly oxidation at elevated temperatures and in humid environments, limiting their effectiveness. Herein, we report a nanocomposite integrating MoS2 with WB2 by periodic alternating arrangement, synthesized using magnetron sputtering technology. This nanolayered architecture effectively harnesses the synergistic properties of both materials, imparting exceptional mechanical properties, superior environmental adaptability and efficient high-temperature lubrication. Methodical experiments and atomistic simulations reveal the incorporation of WB2 promotes preferential growth of MoS2 along the (002) plane, yielding an impressive hardness-to-elastic modulus ratio of approximately 0.10. The resultant films demonstrate notable achievements: a minimal friction coefficient of 0.056 and a specific wear rate of 1.88 × 10−7 mm3 N−1 m−1 in humid air. These findings are primarily stem from the synergistic interaction between MoS2 and metal-oxide nanoparticles at the sliding interface. Remarkably, even at 400 °C, the engineered MoS2/WB2 nanocomposite achieves low friction and wear under high contact stress, outperforming conventional MoS2-based materials. This innovative design, complemented by insights into the high-temperature friction mechanism, holds promise for advancing the development of robust and high-temperature-resistant lubricants.

二硫化钼（MoS2）薄膜因其独特的结构特征和固有的层间滑移特性，被广泛应用于航空航天、核能、机械和电子领域。然而，由于其易受环境影响，特别是在高温和潮湿环境中易氧化，限制了其应用的有效性。在此，我们报告了一种利用磁控溅射技术通过周期性交替排列将 MoS2 与 WB2 集成在一起的纳米复合材料。这种纳米层状结构有效地利用了两种材料的协同特性，赋予了它们优异的机械性能、卓越的环境适应性和高效的高温润滑性。循序渐进的实验和原子模拟显示，WB2 的加入促进了 MoS2 沿 (002) 平面的优先生长，从而产生了令人印象深刻的硬度-弹性模量比（约为 0.10）。由此产生的薄膜取得了显著的成就：最小摩擦系数为 0.056，在潮湿空气中的特定磨损率为 1.88 × 10-7 mm3 N-1 m-1。这些发现主要源于 MoS2 和金属氧化物纳米颗粒在滑动界面上的协同作用。值得注意的是，即使在 400 °C 温度下，工程 MoS2/WB2 纳米复合材料也能在高接触应力下实现低摩擦和低磨损，性能优于传统的 MoS2 材料。这种创新设计，加上对高温摩擦机理的深入了解，有望推动坚固耐用的耐高温润滑剂的开发。

Composites Science and Technology

Ultrawide sensing-range, super durable and high-strength epoxy/carbon fiber composites sensor based on stress-induced structure

Mengman Weng, Zhao-xia Huang, Qing-wen Yuan, Zhi-hua Liu, Jin-ping Qu

doi:10.1016/j.compscitech.2024.110522

基于应力诱导结构的超宽传感范围、超耐用、高强度环氧树脂/碳纤维复合材料传感器

Nowadays, high-pressure sensors are broadly utilized in manufacturing and applications for ensuring safe production and preventing failures. However, present high-pressure sensors are mainly fabricated by high-strength metal and cement, which are too heavy or easy-corrosive to satisfy long-term usage. Polymer piezoresistive materials have great potential due to their stability and light weight, but achieving high strength and durability at the same time remains a serious challenge. In this work, a high-strength pressure sensor is fabricated by epoxy resin/carbon fiber (EP/CF) composite, where CF builds a conductive network as a reinforcing phase and EP provides a durable and light-weight base phase. The conductive mechanism based on stress-induced structure has been elucidated, and the performance of related sensors in various conditions is revealed. The lightweight(∼1.28 g/cm3) pressure sensor manifests a wide sensing response range from 22 kPa to 80 MPa. Moreover, the durability of this novel pressure sensor is verified by repeating loading and unloading at a high pressure of 10 MPa for more than 3500 cycles. Meanwhile, the high temperature and water resistance are furtherly confirmed, where EP/CF composites exhibits excellent cycling stability (10 MPa, >1000 cycles) after heating (100 °C) or soaking in water. Attributed to the comprehensive performance of high-strength, ultrawide detection range, durability and light weight, EP/CF composites are applied for road safety monitoring and deep-sea operation, showing wide application prospects in high-pressure monitoring field.

如今，高压传感器被广泛应用于制造业和各种应用领域，以确保安全生产和防止故障发生。然而，目前的高压传感器主要由高强度金属和水泥制成，重量过重或易腐蚀，无法满足长期使用的要求。聚合物压阻材料因其稳定性和轻质性而具有巨大潜力，但同时实现高强度和耐用性仍是一项严峻挑战。本研究采用环氧树脂/碳纤维（EP/CF）复合材料制作了一种高强度压力传感器，其中碳纤维作为增强相构建了导电网络，而 EP 则提供了耐用且轻质的基相。该材料阐明了基于应力诱导结构的导电机制，并揭示了相关传感器在各种条件下的性能。这种轻型（1.28 克/立方厘米）压力传感器的传感响应范围从 22 千帕到 80 兆帕不等。此外，通过在 10 兆帕高压下重复加载和卸载超过 3500 次，验证了这种新型压力传感器的耐用性。同时，EP/CF 复合材料的耐高温和耐水性也得到了进一步证实，在加热（100 °C）或浸泡在水中后，EP/CF 复合材料表现出卓越的循环稳定性（10 兆帕，大于 1000 次循环）。EP/CF 复合材料具有高强度、超宽检测范围、耐久性和轻质等综合性能，可应用于道路安全监测和深海作业，在高压监测领域具有广阔的应用前景。

来源：复合材料力学仿真Composites FEM

【新文速递】2024年3月3日复合材料SCI期刊最新文章

今日更新：Composite Structures 1 篇，Composites Part A: Applied Science and Manufacturing 1 篇，Composites Part B: Engineering 2 篇，Composites Science and Technology 1 篇Composite StructuresThermo-Mechanical analysis of laminated Doubly-Curved Shells: Higher order Equivalent Layer-Wise formulationFrancesco Tornabene, Matteo Viscoti, Rossana Dimitridoi:10.1016/j.compstruct.2024.117995层叠双曲面壳体的热力学分析：高阶等效层智公式The paper presents a refined two-dimensional formulation for the thermo-mechanical analysis of laminated doubly-curved shell structures under thermodynamic equilibrium conditions. Both the kinematic configuration variables and the temperature variation with respect to the natural equilibrium state are described with a generalized formulation, following the Equivalent Layer-Wise (ELW) approach employing higher order polynomials, along with some proper zigzag functions. The governing equations are derived from the stationary configuration of the Helmholtz free energy of the system, and a semi-analytical solution is found. In the post-processing phase, the Fourier-based Generalized Differential Quadrature (F-GDQ) is applied to recover the actual three-dimensional response of the doubly-curved shell solid, and very accurate results are obtained for the quantities of both mechanical and heat conduction problems. In addition, the integrals occurring in the theory are performed numerically with the Taylor-based Generalized Integral Quadrature (GTIQ), showing a high level of accuracy with a reduced number of sample points. The model is validated in some case studies where the accuracy of the model is shown, and the numerical predictions are successfully compared with those of refined three-dimensional numerical simulations. After that, an extensive set of parametric investigations is reported, pointing out the effects of the panel’s curvature, lamination schemes and different levels of coupling on the thermo-mechanical structural behavior of the investigated panels.本文针对热力学平衡条件下的层叠双曲面壳体结构的热机械分析，提出了一种改进的二维公式。运动构型变量和相对于自然平衡状态的温度变化均采用通用公式进行描述，该公式采用了高阶多项式和一些适当的之字形函数的 "等效分层"（ELW）方法。根据系统的亥姆霍兹自由能的静态配置推导出控制方程，并找到半解析解。在后处理阶段，应用基于傅立叶的广义微分正交（F-GDQ）来恢复双曲面壳体固体的实际三维响应，并获得了机械和热传导问题的非常精确的结果。此外，理论中出现的积分采用基于泰勒的广义积分正交（GTIQ）进行数值计算，在样本点数量减少的情况下显示出很高的精度。该模型在一些案例研究中得到了验证，证明了模型的准确性，并成功地将数值预测与精细的三维数值模拟进行了比较。随后，报告了一系列广泛的参数研究，指出了面板的曲率、层压方案和不同程度的耦合对所研究面板的热机械结构行为的影响。Composites Part A: Applied Science and ManufacturingLightweight zirconium modified carbon–carbon composites with excellent microwave absorption and mechanical propertiesWeikang Tang, Shun Dong, Tangyin Cui, Jianqiang Xin, Yongshuai Xie, Guiqing Chen, Changqing Hong, Xinghong Zhangdoi:10.1016/j.compositesa.2024.108102具有优异微波吸收能力和机械性能的轻质锆改性碳-碳复合材料With the rapid development of space technology, multi-functional materials with advantages such as heat insulation, lightweight, and electromagnetic (EM) wave absorption have gained broad application prospects. Since porous carbon fiber reinforced carbon (C/C) composites often have lightweight and high heat insulation properties, improving their mechanical and electromagnetic wave absorbing properties will significantly expand their application. In this study, a new kind of zirconium-modified C/C (Zr-C/C) composites prepared by polymer infiltration and pyrolysis using zirconium-modified phenolic resin is presented. By adjusting the content of Zr, the compressive strengths of the composites are increased up to 48% compared with the composites without Zr, while the thermal insulation properties are little changed. The incorporation of zirconium can make the composites exhibit better microwave absorption performance to some extent, and Zr-C/C composites with 10% zirconium have the best microwave absorption performance among all the samples. The excellent electromagnetic wave absorption performance of Zr-C/C composites is attributed to the enhanced interfacial polarization effect and the improved electrical conductivities of the material due to its internal carbon microsphere structure. Multi-functional Zr-C/C composites that combine lightweight, high thermal insulation, high compressive strength, and high electromagnetic wave absorption have obvious applications in fields such as stealth aircraft. Therefore, this work provides a new way to prepare multi-functional materials.随着航天技术的飞速发展，具有隔热、轻质和吸收电磁波等优点的多功能材料获得了广阔的应用前景。由于多孔碳纤维增强碳（C/C）复合材料通常具有轻质和高隔热性能，因此改善其机械性能和电磁波吸收性能将大大拓展其应用领域。本研究利用锆改性酚醛树脂，通过聚合物浸渗和热解制备了一种新型锆改性碳纤维增强碳（C/C）复合材料（Zr-C/C）。与不含锆的复合材料相比，通过调整锆的含量，复合材料的抗压强度提高了 48%，而隔热性能变化不大。锆的加入能在一定程度上使复合材料表现出更好的微波吸收性能，其中含 10%锆的 Zr-C/C 复合材料的微波吸收性能是所有样品中最好的。Zr-C/C 复合材料优异的电磁波吸收性能得益于界面极化效应的增强以及材料内部碳微球结构带来的导电性能的改善。集轻质、高隔热、高抗压强度和高电磁波吸收能力于一身的多功能 Zr-C/C 复合材料在隐形飞机等领域具有明显的应用前景。因此，这项工作为制备多功能材料提供了一条新途径。Composites Part B: EngineeringThe role of nanoclay in processing immiscible polypropylene and poly (ethylene terephthalate) waste blends using twin screw extrusionShawn Martey, Mansoureh Jamalzadeh, Wan-Ting Chen, Margaret J. Sobkowiczdoi:10.1016/j.compositesb.2024.111320 纳米粘土在使用双螺杆挤出机加工不相溶聚丙烯和聚（乙烯对苯二甲酸乙二酯）废料混合物中的作用Polypropylene and poly(ethylene terephthalate) waste were blended with different types of nanoclay (cloisite Na+, cloisite 20A and CT4270) to understand the role of nanoclay in immiscible polymer blends. The blend morphology was investigated using scanning electron microscopy, the dispersion of the nanoclay was characterized using wide angle x-ray diffraction (WAXD) and rheology. WAXD results showed partial exfoliation for cloisite Na+ and intercalation for cloisite 20A and CT4270. It was predicted that cloisite Na + settled in the PET phase while cloisite 20A settled at the interface of PP and PET. Morphology analysis showed that increasing the concentration of nanoclay in the blend decreased the droplet size. The nanoclay was shown to inhibit coalescence of the droplets causing a decrease due to its rigidity.将聚丙烯和聚对苯二甲酸乙二酯废料与不同类型的纳米土（cloisite Na+、cloisite 20A 和 CT4270）混合，以了解纳米土在不相溶聚合物共混物中的作用。使用扫描电子显微镜研究了共混物的形态，使用广角 X 射线衍射（WAXD）和流变学表征了纳米土的分散性。WAXD 结果显示，钙钛矿 Na+ 部分剥离，而钙钛矿 20A 和 CT4270 则发生了插层。据预测，loisite Na + 沉淀在 PET 相中，而 cloisite 20A 沉淀在 PP 和 PET 的界面上。形态分析表明，增加混合物中纳米土的浓度会减小液滴尺寸。纳米粘土可抑制液滴的凝聚，从而降低液滴的硬度。Influence of unidirectional composite failure envelope shape on predicting compressive failure of a laminate with a filled holeIvan R. Cózar, José M. Guerrero, Pere Maimí, Albertino Arteiro, Santiago García-Rodríguez, Mélanie Herman, Albert Turondoi:10.1016/j.compositesb.2024.111352单向复合材料破坏包络线形状对带填充孔层压破坏预测的影响In recent decades, several computational models have emerged at the mesoscale for predicting the failure development and strength of composite materials. Nevertheless, the intricate failure mechanisms of composites pose a formidable challenge in developing models capable of consistently reproducing diverse sets of experimental data. Furthermore, the absence of standardised multiaxial tests has hindered consensus on failure envelopes and criteria for composites. In this work, an in-house constitutive model implemented in a finite element code is employed to predict the failure strength of several filled hole compressive carbon/epoxy experimental tests, varying in stacking sequences, sizes, bolt preloads, and other parameters. The influence the selected failure criterion has on the predictions is analysed. The findings indicate a large impact of the failure envelope on both the ultimate compressive strength and developed failure mechanisms. Therefore, the correct adjustment of the failure criteria can be as relevant as defining accurately the material input parameters. These results emphasise the importance of accurately establishing failure envelopes, rather than overemphasising the development of complex models.近几十年来，在中尺度上出现了一些用于预测复合材料失效发展和强度的计算模型。然而，复合材料的失效机理错综复杂，这对开发能够持续再现各种实验数据的模型提出了严峻的挑战。此外，标准化多轴测试的缺乏也阻碍了对复合材料失效包络和标准达成共识。在这项工作中，采用了一个在有限元代码中实施的内部构成模型来预测多个填充孔压缩碳/环氧实验测试的破坏强度，这些测试在堆叠顺序、尺寸、螺栓预紧力和其他参数方面各不相同。分析了所选失效准则对预测结果的影响。研究结果表明，失效包络线对极限抗压强度和失效机理都有很大影响。因此，正确调整失效标准与准确定义材料输入参数同样重要。这些结果强调了准确确定破坏包络的重要性，而不是过分强调复杂模型的开发。Composites Science and TechnologyA honeycomb-inspired carboxymethyl chitosan-covalently link NH2-black phosphorene biobased cellulose green nanocomposites with tremendously enhancement fire safety and thermal conductivityKunxin Wang, Zhencai Qu, Hui Yang, Guoming Yuan, Xiu-e Li, Zhijun Liu, Yanhan Tao, Yang Li, Kun Wu, Jun Shidoi:10.1016/j.compscitech.2024.110535 一种蜂窝状羧甲基壳聚糖共价连接 NH2-黑磷烯生物基纤维素绿色纳米复合材料，可大幅提高防火安全性和导热性能Biobased carboxymethyl chitosan-modified black phosphorene (BP-CMC) was prepared through an amidation reaction between amino group functionalized black phosphorene (NH2-BP) and CMC. Density functional theory (DTF) express that the adsorption energy between urea and phosphene is −6.28 eV, indicating a strong interaction. The resulting BP-CMC was further applied to reinforce the mechanical, flame-retardant and thermal conductivity performance of honeycomb cellulose nanofiber (CNF) film via vacuum filtration. Cone calorimetry test (CCT) result exhibits that the introduction of 30 wt% BP-CMC significantly promoted the fire safety of CNF. For instance, a 98.41% reduction in smoke production rate (SPR), 92.00 % decline in CO release and a 61.31% decrease in heat release rate (HRR) were observed compared to neat CNF. Furthermore, Thermogravimetric infrared (TG-IR) indicates a significant decrease in the release of flammable gases. Raman spectra verify that the incorporation of 30 wt% BP-CMC improves the graphitization degree of residual chars, thus limiting the transfer of heat and oxygen. The improvement in fire safety is attributed to the formation of an intumescent flame-retardant system, which is rich in carbon source (CMC), acid source (BP) and gas source (amino). Simultaneously, the introduction of 30 wt% BP-CMC into CNF leads to considerable enhancement in thermal conductivity (up to 17.49 %), thermal diffusion (utmost to 43.45 %) and heat capacity (increased by 19.23 %). Moreover, the 30 wt % addition of BP-CMC into CNF possesses excellent mechanical properties with the improvement of toughness (increased by 143.50 %) and tensile strength (increased by 140.90 %). This strategy not only provides a new strategy for functionalizing BP but also upgrades the application potential of BP nanosheets in the fire safety of polymer composite films.通过氨基官能化黑磷烯（NH2-BP）与 CMC 的酰胺化反应制备了生物基羧甲基壳聚糖改性黑磷烯（BP-CMC）。密度泛函理论（DTF）表明，脲与磷烯之间的吸附能为 -6.28 eV，表明存在很强的相互作用。通过真空过滤，得到的 BP-CMC 进一步用于增强蜂窝纤维素纳米纤维（CNF）薄膜的机械、阻燃和导热性能。锥形量热试验（CCT）结果表明，30 wt% BP-CMC 的引入显著提高了 CNF 的防火安全性。例如，与纯 CNF 相比，产烟率（SPR）降低了 98.41%，一氧化碳释放量减少了 92.00%，热释放率（HRR）降低了 61.31%。此外，热重红外（TG-IR）显示可燃气体的释放量显著减少。拉曼光谱验证了 30 wt% BP-CMC 的加入提高了残留炭的石墨化程度，从而限制了热量和氧气的传递。防火安全性的提高归功于富含碳源（CMC）、酸源（BP）和气源（氨基）的膨胀阻燃体系的形成。同时，在 CNF 中引入 30 wt%的 BP-CMC 可显著提高导热率（高达 17.49%）、热扩散率（高达 43.45%）和热容量（提高 19.23%）。此外，在氯化萘纤维中添加 30 wt % 的 BP-CMC 可提高韧性（提高 143.50 %）和拉伸强度（提高 140.90 %），从而具有优异的机械性能。这种策略不仅为 BP 功能化提供了一种新策略，还提升了 BP 纳米片在聚合物复合薄膜防火安全方面的应用潜力。来源：复合材料力学仿真Composites FEM