Xiangyu Mei , Yujie You , Kehan Qu , Kun Peng , Feiyan Wu , Min Li , Kui Li , Fengning Liu , Yaqin Fu , Yinsong Si
{"title":"Electrospinning-impregnation: Producing hydrophobic polyimide composites with superior dielectric properties","authors":"Xiangyu Mei , Yujie You , Kehan Qu , Kun Peng , Feiyan Wu , Min Li , Kui Li , Fengning Liu , Yaqin Fu , Yinsong Si","doi":"10.1016/j.compscitech.2024.111016","DOIUrl":"10.1016/j.compscitech.2024.111016","url":null,"abstract":"<div><div>Polyimide (PI) with ultralow dielectric constant (<em>D</em><sub>k</sub>) and dielectric loss (<em>D</em><sub>f</sub>) is highly desired for high-frequency and high-speed electromagnetic communications. Herein, PI<sub>fm</sub>/PI composites with excellent dielectric and hydrophobic properties were successfully prepared by impregnating an electrospun PI nanofiber membrane (PI<sub>fm</sub>) with polyamic acid (PAA) solutions prior to re-imidization process. Evenly distribution of impregnated PAA in the PI<sub>fm</sub> endows the imitated PI matrix to bind with PI fibers tightly. The abundant internal stress at the interfaces of PI nanofibers and PI matrix results in a higher chain packing density, which greatly inhabits dipole polarization in the PI<sub>fm</sub>/PI composites. Specifically, the PI<sub>fm</sub>/PI-15% composite demonstrates an average ultralow <em>D</em><sub>k</sub> of 1.756 and <em>D</em><sub>f</sub> of 0.004 in high-frequency range (8.2–12.4 GHz), together with a quite high dielectric breakdown strength reaching 226.47 kV mm<sup>−1</sup> and sufficient tensile strength of 40.3 MPa. The <em>T</em><sub>d5%</sub> is higher than 560 °C while keeping the coefficient of linear thermal expansion lower than 50 ppm °C<sup>−1</sup>. Moreover, the PI<sub>fm</sub>/PI composites possess a hydrophobic property with contact angle above 108.0°, ensuring the dielectric stability even in a high-temperature or humid environment. The obtained fluorine-free PI<sub>fm</sub>/PI composites with excellent dielectric and hydrophobic properties via electrospinning-impregnation method will greatly boost the advancement of PI nanofiber composites in high-frequency applications.</div></div>","PeriodicalId":283,"journal":{"name":"Composites Science and Technology","volume":"261 ","pages":"Article 111016"},"PeriodicalIF":8.3,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143169487","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Wenmu Yang , Jason Tan , Jiawei Wang , Wenkai Chang , Mohammad S. Islam , Zhao Sha , Cheng Wang , Bo Lin , Jin Zhang , Guan Heng Yeoh , Cyrille Boyer , Chun H. Wang
{"title":"Enhancing mechanical and flame retardant properties of carbon fibre epoxy composites with functionalised ammonium polyphosphate nanoparticles","authors":"Wenmu Yang , Jason Tan , Jiawei Wang , Wenkai Chang , Mohammad S. Islam , Zhao Sha , Cheng Wang , Bo Lin , Jin Zhang , Guan Heng Yeoh , Cyrille Boyer , Chun H. Wang","doi":"10.1016/j.compscitech.2024.111005","DOIUrl":"10.1016/j.compscitech.2024.111005","url":null,"abstract":"<div><div>Existing methods of incorporating flame-retardant fillers to improve the fire resistance of epoxy-matrix based carbon fibre composites often significantly reduce their mechanical properties. To address this issue, this study introduces a novel method for synthesizing nano-sized ammonium polyphosphate (APP) particles by reacting them with amine-containing hardener and applying probe sonication, resulting in nano-sized APP particles (SHF-APP). This treatment reduces the particle size from 14 μm to 0.12 μm. A systematic investigation of the impact of particle size and the hardener treatment reveals that the SHF-APP nanoparticles can simultaneously improve flame-retardancy and mechanical properties of the composites. The concurrent improvements in fire resistance and mechanical properties highlight the significant potential of this novel approach, enabling carbon fibre reinforced epoxy composites to withstand extreme environments and meet stringent fire safety standards while maintaining high mechanical and fracture properties, a feat previously unattainable with conventional methods.</div></div>","PeriodicalId":283,"journal":{"name":"Composites Science and Technology","volume":"261 ","pages":"Article 111005"},"PeriodicalIF":8.3,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143169512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mingming Yu , Mujaheed Halliru Saad , Xiangyu Lin , Fuhao Dong , Xu Fan , Xu Xu , He Liu , Zhanqian Song
{"title":"Synergistic multiple hydrogen bonds and reversible crystallization effect enable ultra-tough, self-healing, and recyclable cellulose-enhanced elastomer","authors":"Mingming Yu , Mujaheed Halliru Saad , Xiangyu Lin , Fuhao Dong , Xu Fan , Xu Xu , He Liu , Zhanqian Song","doi":"10.1016/j.compscitech.2024.111014","DOIUrl":"10.1016/j.compscitech.2024.111014","url":null,"abstract":"<div><div>Incorporating dynamic covalent bonds into polyurethane (PU) elastomers contributes to exceptional self-healing and recyclable properties. However, further applications are seriously limited due to unsatisfying mechanical characteristics. Herein, a self-healing and ultra-robust nanocomposite elastomer is presented here that consists of polyurethane matrix and cellulose nanocrystals through the synergistic gradient hydrogen bonds and strain-induced reversible crystallization effect. Multiple dynamic hydrogen bonds formed between cellulose nanocrystals (CNC) and polyurethane (PHHD) together with the strain-induced reversible crystallized physical network facilitate excellent mechanical properties while maintaining favorable self-healing ability. The introduction of cellulose nanocrystals significantly enhanced the binding energy of the nanocomposite polyurethane elastomer system, exhibiting an increase of 204.32 kJ/mol. Consequently, nanocomposite elastomers display a remarkable tensile strength (up to 50.1 MPa), ultra-high toughness (441.6 MJ/m<sup>3</sup>), and excellent fracture energy (214.5 kJ/m<sup>2</sup>) Furthermore, the result found that the introduction of cellulose nanocrystals can reduce the reaction activation energy and obtain nanocomposite elastomers with highly efficient self-healing (93.9 %). The innovative approach is expected to facilitate the development of high-strength, tough, and exceptional self-healing elastomers in academia and industry.</div></div>","PeriodicalId":283,"journal":{"name":"Composites Science and Technology","volume":"261 ","pages":"Article 111014"},"PeriodicalIF":8.3,"publicationDate":"2024-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143169511","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Haolin Wang, Jihun Lee, Jae Hun Kim, Hyunseong Shin
{"title":"Revealing the origin of the thermal conductivity improvement of the silane@polydopamine modified graphene/epoxy nanocomposites: A multiscale study","authors":"Haolin Wang, Jihun Lee, Jae Hun Kim, Hyunseong Shin","doi":"10.1016/j.compscitech.2024.111009","DOIUrl":"10.1016/j.compscitech.2024.111009","url":null,"abstract":"<div><div>Recently, silane@polydopamine (silane@PDA) non-covalently functionalized two-dimensional nanofillers have attracted considerable interest in the field of thermal interface materials. This is because silane@PDA effectively enhanced the thermal conductivity (TC) of the nanocomposite without damaging its surface structure. However, from a theoretical standpoint, the origin of the observed TC improvement in silane@PDA modified graphene (silane@PDA-GNP)/epoxy nanocomposites remains unclear. In this study, we propose a multiscale strategy combining molecular dynamics (MD) simulations with a two-step homogenization method to investigate the TC improvement of nanocomposites induced by the silane@PDA non-covalent functional groups. Specifically, the contribution of silane@PDA was quantified based on two aspects: the TC of the effective nanofiller and interfacial thermal transport. The two-step homogenization approach indicates that the silane@PDA functional groups enhance the TC of interphase and out-of-plane TC of silane@PDA-GNP, which are crucial for the enhancement of the nanocomposite TC. The contribution of silane@PDA to the interfacial thermal conductance (ITC) was quantified, and the thermal transport process at the interface was further described by analyzing the interfacial thermal transport mechanisms (interfacial interactions and phonon vibrational power spectra). The silane@PDA functional group excites more phonons at the interphases, which leads to more phonons being involved in the interfacial thermal transport and increased ITC. Additionally, the two-step homogenization approach predicted the effects of different types of silanes and the self-condensation of silanes on the TC of the nanocomposites. The proposed two-step homogenization approach can deepen our understanding of the interfacial thermal transport mechanism, and an efficient and fast computational strategy offers a more practical approach for optimizing thermal interface materials with a high TC.</div></div>","PeriodicalId":283,"journal":{"name":"Composites Science and Technology","volume":"261 ","pages":"Article 111009"},"PeriodicalIF":8.3,"publicationDate":"2024-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143169516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yongjing Zhang , Ying Lin , Yanlong Ma , Qibin Yuan , Haibo Yang
{"title":"Concurrent enhanced energy density and efficiency in a novel designed asymmetric four-layer structure composite film via macro-interface regulation","authors":"Yongjing Zhang , Ying Lin , Yanlong Ma , Qibin Yuan , Haibo Yang","doi":"10.1016/j.compscitech.2024.111013","DOIUrl":"10.1016/j.compscitech.2024.111013","url":null,"abstract":"<div><div>With the development of renewable energy sources, dielectric capacitors play a pivotal role in energy conversion devices. However, the current commercial dielectric film materials, due to their low energy density, struggle to meet the requirements for device miniaturization and modularization. In recent years, significant improvements in the discharged energy density (<em>U</em><sub>e</sub>) of composite films have been achieved through the incorporation of various ceramic fillers and the design of topological layer structures. Nonetheless, the energy storage efficiency (<em>η</em>) of these composite films remains low due to inevitable energy loss at the ceramic-polymer micro-interface, limiting their large-scale commercial application. To address this issue, our work introduces a novel strategy: by designing an asymmetric multilayer structure, multiple macro-interfaces are introduced to replace some of the micro-interfaces within composite films, thereby reducing energy loss and enhancing <em>η</em>. Specifically, we propose an innovative asymmetric four-layer structure composite film, which achieves a stellar <em>U</em><sub>e</sub> value of 34.54 J·cm<sup>−3</sup> and an unprecedented <em>η</em> value of 95.82 % at 660 MV·m<sup>−1</sup>. This design adequately reduces the adverse impact of internal micro-interfaces on the energy storage characteristics of the composite films, achieving the optimal integrated energy storage performance so far.</div></div>","PeriodicalId":283,"journal":{"name":"Composites Science and Technology","volume":"261 ","pages":"Article 111013"},"PeriodicalIF":8.3,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143169517","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lu He , Pengfei Xu , Yongzheng Zhang , Songgang Chai , Zilong Xie , Zhengli Dou , Ziran Guo , Tianhao Yang , Qiang Fu , Kai Wu
{"title":"Polytetrafluoroethylene composites for high-frequency microwave applications: Balancing thermal conductivity, adhesion and dielectric properties","authors":"Lu He , Pengfei Xu , Yongzheng Zhang , Songgang Chai , Zilong Xie , Zhengli Dou , Ziran Guo , Tianhao Yang , Qiang Fu , Kai Wu","doi":"10.1016/j.compscitech.2024.111012","DOIUrl":"10.1016/j.compscitech.2024.111012","url":null,"abstract":"<div><div>Polytetrafluoroethylene (PTFE) is widely used as a polymer substrate for high-frequency microwave copper cladding due to its low dielectric loss and high stability. However, its inherently low thermal conductivity requires the use of high-content fillers, which complicates efforts to balance thermal conductivity, adhesion strength, and dielectric loss of the composite materials. Herein, we introduce PTFE composites with a hybrid filler network, where the synergistic alignment and interaction of two-dimensional hexagonal boron nitride (h-BN) and granular β-silicon nitride (Si<sub>3</sub>N<sub>4</sub>) forms interconnected pathways in the vertical direction. The spatial arrangement of large-sized h-BN can bridge and shorten the thermal conduction path within the Si<sub>3</sub>N<sub>4</sub> network, forming robust vertical thermal pathways, achieving an out-of-plane thermal conductivity of 1.6 W/m K. Additionally, the complementary properties of h-BN and Si<sub>3</sub>N<sub>4</sub> enhance the overall performance. Si<sub>3</sub>N<sub>4</sub> reduces stress concentration, improving adhesion strength, while h-BN's wide bandgap and weak polarity help minimize dielectric loss. This combination results in a peeling strength of 1.3 N/mm with copper foil and a remarkably low dielectric loss (<0.0011) at 10 GHz. The ultimate PTFE composite ensures reliable, stable, and secure signal transmission in high-frequency communication devices, making it a highly promising material for the electronics sector.</div></div>","PeriodicalId":283,"journal":{"name":"Composites Science and Technology","volume":"261 ","pages":"Article 111012"},"PeriodicalIF":8.3,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143169515","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zhao Zhao , Haoran Zhang , Qing Ma , Jinghua He , Ming Cheng , Chang Long , Haoda Qi , Yanfang Cui , Lei Pan
{"title":"Resilient and fatigue-resistant hybrid fiber aerogel with oriented pore structure for broadband frequency sound absorption","authors":"Zhao Zhao , Haoran Zhang , Qing Ma , Jinghua He , Ming Cheng , Chang Long , Haoda Qi , Yanfang Cui , Lei Pan","doi":"10.1016/j.compscitech.2024.111004","DOIUrl":"10.1016/j.compscitech.2024.111004","url":null,"abstract":"<div><div>Aerogel, a lightweight and highly porous material with a network structure, has found extensive applications in sound absorption. To effectively enhance the acoustic properties, it is crucial to design appropriate pore structures within the aerogel. In this study, a novel composite aerogel (named ACQ) that incorporates aramid nanofibers (ANFs), cellulose nanofibers (CNFs), and quartz fibers (QFs) to achieve a synergistic effect is proposed. By precisely controlling the content of these ternary components, ANFs and CNFs establish directional channels that are further reinforced by the penetration of rigid QFs. The resulting ultra-light density (5 mg/cm<sup>3</sup>) hybrid ACQ aerogels exhibit exceptional broadband sound absorption performance with an average sound absorption coefficient of 0.367. Finite element simulation elucidates the acoustic energy dissipation mechanism as follows: (1) the directional channel architecture formed by ANFs/CNFs enhances the absorption of acoustic waves and effectively impedes their outward propagation; (2) penetration of QFs significantly increase pore density, causing multiple reflection and diffraction of acoustic waves within the channels; (3) vibrations of pore walls and QFs induced by sound waves dissipate acoustic energy as heat, further enhancing the aerogel's acoustic absorption capacity. Additionally, the hybrid ACQ aerogel demonstrates excellent compressive resilience and fatigue resistance as it maintains a 90 % retention rate in compression strength even after undergoing 50 cycles of compression at a strain level of 50 %. These findings highlight the aerogel's promising prospects for applications in aerospace, marine and transportation fields.</div></div>","PeriodicalId":283,"journal":{"name":"Composites Science and Technology","volume":"261 ","pages":"Article 111004"},"PeriodicalIF":8.3,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143169514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lu Wang , Yu Huang , Hui Wang , Youmin Rong , Guojun Zhang
{"title":"Enhancing TC4/CFRTP joint strength through oscillating laser joining: An investigation into interfacial heat and mass transfer behaviors","authors":"Lu Wang , Yu Huang , Hui Wang , Youmin Rong , Guojun Zhang","doi":"10.1016/j.compscitech.2024.111008","DOIUrl":"10.1016/j.compscitech.2024.111008","url":null,"abstract":"<div><div>This study elucidates the reinforcement mechanisms of TC4/carbon fiber reinforced thermoplastic (CFRTP) joints using an oscillating laser beam based on the analysis of interfacial heat and mass transfer behaviors. Under the same laser line energy, oscillating laser joined (OLJ) TC4/CFRTP joints exhibited superior joint morphology, a more stable joining process, and increased joint strength compared to laser direct joined (LDJ) joints. At a laser line energy of 50 J/mm (500 W, 10 mm/s), the oscillating laser beam increased joint strength from 970 N to 1578.75 N, representing a 62.76 % improvement. Analysis of experimental and simulation results indicated that the primary mechanism driving this enhancement is the altered heat transfer behavior caused by the oscillating laser beam. Spatially, the laser beam action distance is reduced at the center of the joining area while expanding on both sides. Temporally, the pyrolysis duration of CFRTP at the interface is shortened, while the melting duration is extended. Consequently, the pyrolysis zone diminishes or disappears entirely, whereas the melting zone expands. Both LDJ and OLJ joints exhibit similar mass transfer behavior, forming a 6 μm thick element diffusion layer containing CTi<sub>0.42</sub>V<sub>1.58</sub> and TiOS at the interface. In conclusion, the oscillating laser beam promotes uniform energy distribution, enhancing CFRTP melting without pyrolysis, thereby strengthening joints without compromising processing efficiency.</div></div>","PeriodicalId":283,"journal":{"name":"Composites Science and Technology","volume":"261 ","pages":"Article 111008"},"PeriodicalIF":8.3,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143169482","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pengfei He , Jianwei Li , Bilin Zhang , Liangkang Huang , Yuanyuan Zhong , Shengping Li , Wei Fan , Fei Liu
{"title":"Mechanically robust porous polyimide films for piezoelectric sensing at extreme condition","authors":"Pengfei He , Jianwei Li , Bilin Zhang , Liangkang Huang , Yuanyuan Zhong , Shengping Li , Wei Fan , Fei Liu","doi":"10.1016/j.compscitech.2024.111006","DOIUrl":"10.1016/j.compscitech.2024.111006","url":null,"abstract":"<div><div>The design and fabrication of piezoelectric materials with exceptional thermal stability for application in harsh environments remains a challenging. Herein, a three-dimensional porous fluorine-containing polyimide (PI) and zinc oxide (ZnO) composite self-powered piezoelectric sensor with high sensitivity and high-temperature resistance is prepared via the water vapor-induced fast phase separation method. The increased interface area within the PI film can produce enhanced piezoelectric properties by introducing a porous structure. The piezoelectric coefficient (<em>d</em><sub>33</sub>) of pure porous PI-0 film reached 3.3 <em>pC/N</em>. In addition, the addition of ZnO nanoparticles significantly improved the piezoelectric properties and thermal stability of composite porous films. The as-prepared sensor exhibits good piezoelectric characteristics with a voltage output of 4 <em>V</em>, excellent piezoelectric sensitivity (0.75 V∙N<sup>−1</sup>), fast response (15 ms), recovery time (20 ms) and outstanding durability (>9000 times). Furthermore, the composite porous PI films exhibit high flexibility, hydrophobicity, excellent high-temperature resistance with <em>T</em><sub><em>d5%</em></sub> up to 500<em>°C</em>. This study represents a novel kind of piezoelectric substrate for the design of high-performance self-powered piezoelectric sensors in aerospace and microelectronics.</div></div>","PeriodicalId":283,"journal":{"name":"Composites Science and Technology","volume":"261 ","pages":"Article 111006"},"PeriodicalIF":8.3,"publicationDate":"2024-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143169483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
H.F.M. de Queiroz , N.V. dos Santos , J.S.S. Neto , M.D. Banea
{"title":"Mechanical characterization of novel natural fibre-reinforced composites via a three-dimensional fibre architecture","authors":"H.F.M. de Queiroz , N.V. dos Santos , J.S.S. Neto , M.D. Banea","doi":"10.1016/j.compscitech.2024.110996","DOIUrl":"10.1016/j.compscitech.2024.110996","url":null,"abstract":"<div><div>This research focuses on the fabrication and analysis of novel natural fibre hybrid composites using two different reinforcement techniques: intralaminar reinforcement (2D) and orthogonal-through-the-thickness reinforcement (3D-OTT). Jute bidirectional fabric served as the main fibre phase, while secondary reinforcement phases (sisal, curauá, and glass fibres) were woven unidirectionally through the jute fabric for the 2D architecture (intralaminar reinforcement). For the 3D architecture, a transverse fibre phase was additionally woven orthogonally through the thickness of the fibre preforms. Pure jute and glass fibre-reinforced composites were also fabricated and tested for comparison. Tensile, flexural, and impact tests were performed to assess how the innovative 3D-OTT architecture influences in-plane composite properties. SEM analysis and X-ray microtomography were used to examine failure modes, interfacial quality and void volume fractions. The results support the viability of the novel composite materials for partial or complete substitution of glass fibre-reinforced materials (GFRP) in specific applications. For instance, curauá-reinforced specimens demonstrated comparable tensile and flexural stiffness to synthetic composites, while 3D-reinforced sisal specimens exhibited exceptional energy absorption during impact testing. Additionally, the simple fabrication process resulted in very low void fractions, making these composites suitable for the automotive industry.</div></div>","PeriodicalId":283,"journal":{"name":"Composites Science and Technology","volume":"261 ","pages":"Article 110996"},"PeriodicalIF":8.3,"publicationDate":"2024-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143169481","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}