Composites Communications最新文献_第9页

Study on mechanical, electrical properties and interfacial bonding of high-strength graphene nanosheets (GNSs)/CuCrZr composites prepared via laser powder bed fusion 激光粉末床熔接制备高强度石墨烯纳米片/CuCrZr复合材料的力学、电学性能及界面键合研究

IF 6.5 2区材料科学

Composites Communications Pub Date : 2025-03-25 DOI: 10.1016/j.coco.2025.102380

Lizheng Zhang , Peng Dong , Qian Wang , Yong Zeng , Jimin Chen

{"title":"Study on mechanical, electrical properties and interfacial bonding of high-strength graphene nanosheets (GNSs)/CuCrZr composites prepared via laser powder bed fusion","authors":"Lizheng Zhang , Peng Dong , Qian Wang , Yong Zeng , Jimin Chen","doi":"10.1016/j.coco.2025.102380","DOIUrl":"10.1016/j.coco.2025.102380","url":null,"abstract":"<div><div>The high optical reflectivity and thermal conductivity of copper make it challenging to form fully dense, high-strength, and high-conductivity copper alloy parts through laser-based additive manufacturing. In this paper, a new method for manufacturing high strength and conductivity copper alloy components by using optical absorption GNSs-coated copper powder and LPBF technology is proposed. The densification behavior, microstructure evolution, mechanical properties, and electrical and thermal conductivity of GNSs/CuCrZr composites prepared by laser powder bed fusion under different process parameters were studied. The high density of 99.58 % was obtained by optimizing the process parameters. With the increase of <em>E</em><sub><em>a</em></sub>, the grain size of the cross section is fine and uniform. The columnar grains in the longitudinal section are slender and grow epitaxially along the deposition direction. The yield strength, ultimate tensile strength, and total elongation at break are 220 MPa, 285 MPa, and 30 %, respectively. This is due to the generation of uniformly dispersed and fine precipitates and high-density dislocations. In addition, the interface characteristics and formation mechanism of GNSs/CuCrZr composites were also discussed by first-principles calculations and experimental studies. The interface between GNSs and CuCrZr is well-bonded, and there is a good agreement between the calculated and experimental data.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"56 ","pages":"Article 102380"},"PeriodicalIF":6.5,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143737752","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

Frontal polymerization of high-performance glass fiber epoxy composites with high fiber volume fraction 高纤维体积分数高性能玻璃纤维环氧复合材料的正面聚合

IF 6.5 2区材料科学

Composites Communications Pub Date : 2025-03-25 DOI: 10.1016/j.coco.2025.102381

Zhikang He, Rulin Shen, Taizhi Liu, Shuqi He, Yanling Gong

{"title":"Frontal polymerization of high-performance glass fiber epoxy composites with high fiber volume fraction","authors":"Zhikang He, Rulin Shen, Taizhi Liu, Shuqi He, Yanling Gong","doi":"10.1016/j.coco.2025.102381","DOIUrl":"10.1016/j.coco.2025.102381","url":null,"abstract":"<div><div>Manufacturing high-performance glass fiber epoxy composites (GFRP) through radical-induced cationic frontal polymerization (RICFP) is challenging. Achieving high fiber content is difficult due to low resin levels and inadequate chemical reactivity. This study systematically investigates the effects of ultraviolet (UV) light and local thermal initiation on RICFP using bisphenol A diglycidyl ether (BADGE) epoxy resin as the substrate. The preferred initiation method was identified, and the enthalpy change and thermal equilibrium of the resin's RICFP reaction were effectively controlled by optimizing preheating conditions, resin composition, and the initiator ratio. A method for preparing high-fiber-volume GFRP via RICFP was also proposed. Experimental results revealed that GFRP prepared by UV-initiated RICFP exhibited a 13.8 % increase in flexural strength, alongside an 11.8 % reduction in frontal temperature compared to local thermal initiation. By optimizing the resin composition for the RICFP process, a fiber volume fraction of up to 52 % was achieved. The frontal polymerization specimen's flexural strength increased by 27.7 % and 28.7 %, while its interlaminar fracture toughness improved by 11.9 % and 50.9 %, respectively, compared to the two thermal curing specimens (SEP-Heat Cured and BADGE-Heat Cured). Furthermore, dynamic thermomechanical analysis (DMA) demonstrated significant enhancements in the glass transition temperature, with increases of 69.14 % and 139.53 %, respectively. This study provides both a theoretical foundation and technical guidelines for the RICFP process, aiming to produce high-performance GFRP with a high fiber volume fraction.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"56 ","pages":"Article 102381"},"PeriodicalIF":6.5,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143705451","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

Effects of liquid rubber-modified epoxy on the fracture toughness of rGO-Coated fabric piezoresistive composites 液体橡胶改性环氧树脂对氧化石墨烯涂层织物压阻复合材料断裂韧性的影响

IF 6.5 2区材料科学

Composites Communications Pub Date : 2025-03-24 DOI: 10.1016/j.coco.2025.102368

Israr Ud Din , M.S. Sikandar Bathusha , Kamran A. Khan

{"title":"Effects of liquid rubber-modified epoxy on the fracture toughness of rGO-Coated fabric piezoresistive composites","authors":"Israr Ud Din , M.S. Sikandar Bathusha , Kamran A. Khan","doi":"10.1016/j.coco.2025.102368","DOIUrl":"10.1016/j.coco.2025.102368","url":null,"abstract":"<div><div>In this study, a reduced graphene oxide (rGO)-coated glass fabric-based piezoresistive composite with enhanced fracture toughness was developed using a liquid rubber-modified epoxy system. Carboxyl-terminated butadiene acrylonitrile copolymer (CTBN)-modified epoxy was infused into the composite via the vacuum-assisted resin transfer molding (VARTM) process, embedding the partially reduced rGO-coated glass fabric. The electromechanical performance of the composite, tested under tensile, Mode I, and Mode II conditions, was compared to unmodified epoxy-based samples. The results demonstrated a significant improvement in the interlaminar fracture toughness of the CTBN-modified epoxy samples without affecting the piezoresistive sensitivity. Specifically, adding 10 wt% of CTBN to the epoxy led to a ∼38 % increase in Mode I fracture toughness and a ∼16 % increase in Mode II fracture toughness. However, a 5 % decrease in elastic modulus was observed during tensile testing. Additionally, the CTBN-modified epoxy samples exhibited higher tensile strain at failure compared to the unmodified samples, indicating enhanced ductility due to the addition of CTBN. Scanning electron microscopy (SEM) images confirmed the highly deformed, ductile nature of the fractured surfaces in the CTBN-modified samples.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"56 ","pages":"Article 102368"},"PeriodicalIF":6.5,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143725361","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

Synthesis, characterizations, and applications of intelligent light weight polyethylene wax/bentonite/g-C3N4-charcoal nanocomposites in gamma radiation shielding 智能轻质聚乙烯蜡/膨润土/g- c3n4 -炭纳米复合材料的合成、表征及在γ辐射屏蔽中的应用

IF 6.5 2区材料科学

Composites Communications Pub Date : 2025-03-22 DOI: 10.1016/j.coco.2025.102377

El-Toony M.M , M.A. Elady , Gh Eid , M. Hassan

{"title":"Synthesis, characterizations, and applications of intelligent light weight polyethylene wax/bentonite/g-C3N4-charcoal nanocomposites in gamma radiation shielding","authors":"El-Toony M.M , M.A. Elady , Gh Eid , M. Hassan","doi":"10.1016/j.coco.2025.102377","DOIUrl":"10.1016/j.coco.2025.102377","url":null,"abstract":"<div><div>To address the necessity for intelligent shielding materials that protect passengers and crew in aircraft from gamma radiation, a low-density, lead-free nanocomposite has been developed. The bentonite, g-C<sub>3</sub>N<sub>4</sub>-charcoal, and bentonite/g-C<sub>3</sub>N<sub>4</sub>-charcoal on LDPE wax nanocomposites were produced by mixing 4 % of nanoparticles with LDPE wax (LDPE wax/4 % bentonite, LDPE wax/4 % g-C<sub>3</sub>N<sub>4</sub>-charcoal, and LDPE wax/2 % bentonite/2 % g-C<sub>3</sub>N<sub>4</sub>-charcoal). The structure and elemental composition of the prepared nanocomposites were studied by utilizing transmission electron microscopy (TEM), XRD, scanning electron microscopy (SEM), EDS, infrared spectroscopic analysis (FTIR), and hardness (Shore D). Subsequently, mass attenuation coefficient (MAC), the Half-value Layer (HVL), Linear Attenuation Coefficients (μl), Mean Free Path (MFP), and the density of the synthesized nanocomposites were calculated. The parameters indicated that the composite's ability to attenuate gamma radiation is significantly improved by selecting the appropriate nanocomposites combination. The resulting LDPE wax/2 % bentonite/2 % g-C<sub>3</sub>N<sub>4</sub>-charcoal nanocomposites exhibited optimal performance for efficient shielding, particularly at lower gamma-ray energy. At 1.330 MeV, the mass attenuation coefficient (MAC) of the appropriately composed nanocomposites increased by 52 % compared to pure wax, while the linear attenuation coefficient (LAC) followed a similar trend, increasing by 71 %. The HVL diminished by 44.3 % at the same energy for the appropriate nanocomposites, while the MFP decreased by 43.3 %. These findings illustrate the promise of bentonite g-C<sub>3</sub>N<sub>4</sub>-charcoal nanocomposites as a durable and effective material for radiation shielding, with significant utility across diverse fields, including the development of secure aircraft against gamma radiation.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"56 ","pages":"Article 102377"},"PeriodicalIF":6.5,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143734964","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

Facile fabrication of lightweight hollow core-shell SiC@SiO2 fibers for high-temperature thermal insulation 用于高温隔热的轻质空心芯壳SiC@SiO2纤维易于制造

IF 6.5 2区材料科学

Composites Communications Pub Date : 2025-03-22 DOI: 10.1016/j.coco.2025.102360

Yuanjia Xia, Zhen Zhang, Guobing Chen, Xiaoxiao Xia, Shuang Zhao, Zhifang Fei, Kunfeng Li, Zichun Yang

{"title":"Facile fabrication of lightweight hollow core-shell SiC@SiO2 fibers for high-temperature thermal insulation","authors":"Yuanjia Xia, Zhen Zhang, Guobing Chen, Xiaoxiao Xia, Shuang Zhao, Zhifang Fei, Kunfeng Li, Zichun Yang","doi":"10.1016/j.coco.2025.102360","DOIUrl":"10.1016/j.coco.2025.102360","url":null,"abstract":"<div><div>The development of new multi-functional high-temperature insulation materials is of crucial significance for promoting energy conservation and emission reduction and improving energy utilization efficiency. Silicon carbide (SiC) materials possess good thermal and chemical stability and are promising high-temperature insulation materials. However, the thermal and mechanical properties of intrinsic SiC materials must be further improved to fulfil the practical requirements. Microstructure control and component optimization are the main strategies for enhancing the thermal and mechanical properties of SiC materials. Therefore, studies for simultaneously synergizing the structure control and component optimization and simplifying the preparation process are of considerable significance. In this study, hollow core–shell SiC@SiO<sub>2</sub> fibers (HCSFs) were prepared via simple chemical vapour infiltration and high-temperature heat treatment, which enabled the facile construction of multiple structures and dual components. The HCSFs exhibit a light weight (36 mg/cm<sup>3</sup>), low thermal conductivity (0.032 W/(m·K)) and high operating temperature (1000 °C) as well as good mechanical properties (flexibility and tensile strength).</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"56 ","pages":"Article 102360"},"PeriodicalIF":6.5,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143737753","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

Enhancing multifunctional properties of thermotropic liquid crystalline polyarylate nanocomposites: Synergistic effects of multi-walled carbon nanotubes on morphology, thermal stability, and EMI shielding 增强热致液晶聚芳酯纳米复合材料的多功能性能：多壁碳纳米管对形貌、热稳定性和电磁干扰屏蔽的协同效应

IF 6.5 2区材料科学

Composites Communications Pub Date : 2025-03-22 DOI: 10.1016/j.coco.2025.102379

Hyung-Ho Choi, Seung-Hun Chae, Yujin Noh, In-Hee Kim, Young Gyu Jeong

{"title":"Enhancing multifunctional properties of thermotropic liquid crystalline polyarylate nanocomposites: Synergistic effects of multi-walled carbon nanotubes on morphology, thermal stability, and EMI shielding","authors":"Hyung-Ho Choi, Seung-Hun Chae, Yujin Noh, In-Hee Kim, Young Gyu Jeong","doi":"10.1016/j.coco.2025.102379","DOIUrl":"10.1016/j.coco.2025.102379","url":null,"abstract":"<div><div>This study presents a comprehensive investigation into the morphological, thermal, mechanical, rheological, and electromagnetic interference (EMI) shielding properties of thermotropic liquid crystalline polyarylate (TLCP) nanocomposites reinforced with 1–10 wt% multi-walled carbon nanotubes (MWNTs). Scanning electron microscopy reveals that MWNTs are uniformly coated with TLCP chains, signifying strong interfacial adhesion. Spectroscopic and structural analyses (FT-IR and XRD) indicate molecular-level interactions, evidenced by characteristic band shifts and reduced crystallinity with increasing MWNT content. Thermal analysis demonstrates that MWNT incorporation enhances the melt-crystallization temperature, glass transition temperature, thermal stability, and residual char at 800 °C. Dynamic mechanical analysis shows a substantial increase in the elastic storage modulus (<em>E</em>′), with <em>E</em>′ at 30 °C reaching 6.2 GPa, which is approximately 140 % higher than that of pristine TLCP. Rheological measurements further confirm improved viscoelastic behavior, marked by increases in both complex viscosity and shear storage modulus. Electrical conductivity rises markedly beyond a percolation threshold of ∼2.96 wt%, forming continuous conductive pathways, with a scaling exponent of <em>t</em> = 3.862. Notably, the TLCP nanocomposite with 10 wt% MWNT achieves a high EMI shielding effectiveness of ∼45 dB/mm. These results underscore the promise of TLCP/MWNT nanocomposites as multifunctional materials for next-generation applications demanding superior thermal, mechanical, and EMI shielding performance.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"56 ","pages":"Article 102379"},"PeriodicalIF":6.5,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143696692","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

Multiple interactions and micro/nano particles cooperation design of robust and hydrophobic cellulose nanofiber composite paper with superior flame resistance 高阻燃性能、坚固疏水纤维素纳米纤维复合纸的多重相互作用及微纳粒子协同设计

IF 6.5 2区材料科学

Composites Communications Pub Date : 2025-03-22 DOI: 10.1016/j.coco.2025.102376

Min Zhang , Haizhen Chen , Yu He, Shuohang Li, Junchi Quan, Zhenzhen Wei, Yan Zhao

{"title":"Multiple interactions and micro/nano particles cooperation design of robust and hydrophobic cellulose nanofiber composite paper with superior flame resistance","authors":"Min Zhang , Haizhen Chen , Yu He, Shuohang Li, Junchi Quan, Zhenzhen Wei, Yan Zhao","doi":"10.1016/j.coco.2025.102376","DOIUrl":"10.1016/j.coco.2025.102376","url":null,"abstract":"<div><div>Cellulose has gained popularity in the energy and chemical industries due to its abundant resources, low cost, and biodegradability. However, traditional cellulose paper exhibits deficiencies in strength, flame retardancy, and hydrophobicity, thereby limiting its application in packaging materials as well as posing safety hazards. In this work, multifunctional cellulose nanofiber composite papers (AS-LAB) were fabricated via a combination of charge difference design and vacuum filtration technology, followed by the double coating of mixed micro-scaled and nano-scaled particles. The strength of the AS-LAB composite paper was enhanced by 2.2 times compared to that of pure cellulose paper, attributed to the multiple interactions (including hydrogen bonding, covalent cross-linking, and electrostatic attraction) between the components and the perfect match of particles with different scales. Moreover, the simultaneous utilization of different ammonium polyphosphates with high and low polymerization degrees offers the AS-LAB composite paper with remarkable flame retardancy, and the rough surface in the sandwich structure caused by the multiscale particles renders the composite paper with desirable hydrophobicity (water contact angle 138.1°) and self-cleaning properties. Therefore, the design and fabrication of cellulose nanofiber composite paper shed light on the paper performance improvement and suggest its potential application in the packaging field.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"56 ","pages":"Article 102376"},"PeriodicalIF":6.5,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143697147","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

Development and evaluation of photothermal synergistic in-situ curing process for carbon fiber reinforced composite materials 碳纤维增强复合材料光热协同原位固化工艺的开发与评价

IF 6.5 2区材料科学

Composites Communications Pub Date : 2025-03-22 DOI: 10.1016/j.coco.2025.102374

Fang Li , Ruikang Zhai , Wenjing Fan , Chen Liang , Lu Lu , Zihan Li , Shangqin Yuan

{"title":"Development and evaluation of photothermal synergistic in-situ curing process for carbon fiber reinforced composite materials","authors":"Fang Li , Ruikang Zhai , Wenjing Fan , Chen Liang , Lu Lu , Zihan Li , Shangqin Yuan","doi":"10.1016/j.coco.2025.102374","DOIUrl":"10.1016/j.coco.2025.102374","url":null,"abstract":"<div><div>Additive manufacturing (AM) technology provides a novel approach to the production of lightweight, high-performance, and highly customizable continuous fiber-reinforced polymer (CFRP) composites. However, the AM process for thermosetting CFRP composites faces significant challenges, such as slow curing speeds and poor in-situ forming quality. In this study, a photothermal synergistic curing method for CFRP composites is proposed for fabrication via AM. The in-situ rapid impregnation and curing of the thermosetting CFRP composites are achieved by employing a dual-curable monomer/prepolymer resin. The process window of the CFRP composites using photothermal synergistic curing is determined by analyzing the process-structure-performance mapping relationship. The influence of process parameters on the mechanical properties of the manufactured thermosetting CFRP composites is investigated, and the failure behaviors of the composites are revealed. The printability of functional structures for thermosetting CFRP composites is demonstrated using the proposed AM process, which provides technical support for the integrated manufacturing of composite materials.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"56 ","pages":"Article 102374"},"PeriodicalIF":6.5,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143760883","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 flexible sandwich-structured composite film for EMI shielding, thermal management, stress sensing and flame retardancy in wearable electronics 一种柔性三明治结构复合薄膜，用于可穿戴电子产品的电磁干扰屏蔽、热管理、应力传感和阻燃

IF 6.5 2区材料科学

Composites Communications Pub Date : 2025-03-22 DOI: 10.1016/j.coco.2025.102375

Lin Yang , Changgeng Li , Tongle Pu , Yunjun Ruan , Tong Guo

{"title":"A flexible sandwich-structured composite film for EMI shielding, thermal management, stress sensing and flame retardancy in wearable electronics","authors":"Lin Yang , Changgeng Li , Tongle Pu , Yunjun Ruan , Tong Guo","doi":"10.1016/j.coco.2025.102375","DOIUrl":"10.1016/j.coco.2025.102375","url":null,"abstract":"<div><div>The increasing demand for wearable electronics necessitates multifunctional composite films with capabilities such as electromagnetic interference (EMI) shielding, thermal management, and stress sensing. Herein, a flexible multifunctional composite film (PMF) with a sandwich structure was fabricated using a simple vacuum filtration. The multifunctionality and balance of the PMF film are primarily derived from the middle layer of its sandwich structure, which is composed of a blend of MXene, phase change materials, and cellulose nanofibers. This unique composition imparts excellent electrical conductivity, thermal conductivity, heat storage capacity, and mechanical properties to the composite film. Consequently, the PMF film exhibits superior mechanical performance (tensile strength: 20.3 MPa, elongation: 22.5 %), EMI shielding (34.8 dB and 7356.93 dB cm<sup>2</sup> g<sup>−1</sup>), and efficient thermal management under light exposure (ΔT: 16 °C–43 °C within 95 s). The polyvinyl alcohol outer layers of the sandwich structure offer a flexible substrate and protect MXene from oxidation. Additionally, the PMF film functions as a stress sensor, capable of monitoring wrist flexion, finger bending, and vocal cord vibrations, while also offering flame retardancy. In conclusion, this meticulously engineered PMF film has significant potential for applications in wearable electronics, because of the combination of EMI shielding, thermal management, stress sensing, and flame resistance.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"56 ","pages":"Article 102375"},"PeriodicalIF":6.5,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143737751","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 facile strategy for constructing biomimetic continuous fiber reinforced biocomposites with spatial Bouligand structure 构建具有空间布利根结构的仿生连续纤维增强生物复合材料的简易策略

IF 6.5 2区材料科学

Composites Communications Pub Date : 2025-03-21 DOI: 10.1016/j.coco.2025.102351

Xueni Zhao, Zhipeng Zhu

{"title":"A facile strategy for constructing biomimetic continuous fiber reinforced biocomposites with spatial Bouligand structure","authors":"Xueni Zhao, Zhipeng Zhu","doi":"10.1016/j.coco.2025.102351","DOIUrl":"10.1016/j.coco.2025.102351","url":null,"abstract":"<div><div>Considering that biomimetic Bouligand structure can simultaneously improve strength and toughness and fiber can guide crack propagation path in fiber reinforced composites, unique 3D (spatial) Bouligand structural composites where crack deflection, twisting, and branching are more likely to occur compared to 2D (planar) ones were constructed by a convenient and reliable preparation method. Compressive strength and flexural strength of biomimetic continuous carbon fiber reinforced hydroxyapatite (CF/HA) composites with spatial Bouligand (SB) structure respectively increase by 85.55 % and 38.42 % compared to those of the composites with a common planar Bouligand (PB) structure. The 3-dimensional stacked Bouligand structure causes further crack deflection and energy dissipation, resulting in a superior mechanical property over PB structure. Compressive strength (190.2 MPa), flexural strength (78.9 MPa), and fracture toughness (24.4 MPa m<sup>1/2</sup>) of the SB composites can meet the requirements of weight-bearing bone, which will allow them to be used for ceramic bone plates and bone nails. This study also offer a facile strategy for the construction of advanced ceramics, metal, and polymer based composites with simultaneously improved strength and toughness.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":"56 ","pages":"Article 102351"},"PeriodicalIF":6.5,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143697704","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