Flexural and impact performance of Kevlar/basalt fabric interlayer hybrid curved composites

IF 17.7 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2024-02-27 DOI:10.35530/it.075.01.202313

Fangtao Ruan, Hao Wang, Chen Xia, Qingyong Yang, Lihua Zou, Zhenzhen Xu

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Abstract

FRP composite has become one of the most preferred materials in lightweight applications. Design freedom is a key benefit which is reflected in the choice of fibres, stacking sequence and others. Hybridisation of hard inorganic fibre and organic ductile fibres can lead to synergetic effects. In this paper, an interlayer hybrid curved laminated composite reinforced with woven Kevlar and basalt fabrics and manufactured by a hand lay-up process with epoxy resin was prepared. Experimental investigation on the flexural and impact properties of composite laminates has been performed. The results of the investigation showed that the placement of Kevlar fibres on the impact side can increase the impact and flexural strengths, sample H3 (K3B2K3B2) has the highest impact strength and absorbed energy among seven hybrid laminates, valued at 92.89 KJ/m2 and 2.48 KJ. Compared with H5(B4K6) improved 41.6% and 40.9%, respectively. However, H5 has the highest flexural strength, reaching 231.7 MPa. In addition, the use of basalt fabric on the impact reverse side or multi-layer hybrid structuring further improves the impact properties of the materials. A sandwich-structure composite with basalt layers in the middle and Kevlar layers on both sides shows further improvement in the flexural properties.

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凯夫拉尔/沥青纤维夹层混合曲面复合材料的挠曲和冲击性能

玻璃钢复合材料已成为轻质应用中最受欢迎的材料之一。设计自由是其主要优点，这体现在纤维的选择、堆叠顺序等方面。硬质无机纤维和有机韧性纤维的混合可产生协同效应。本文制备了一种由凯夫拉纤维和玄武岩纤维编织增强的层间混合曲面层压复合材料，该复合材料采用环氧树脂手糊工艺制造。研究结果表明，在冲击侧铺设凯夫拉纤维可提高冲击强度和弯曲强度，样品 H3（K3B2K3B2）的冲击强度和吸收能量在七种混合层压板中最高，分别为 92.89 KJ/m2 和 2.48 KJ。与 H5（B4K6）相比，分别提高了 41.6% 和 40.9%。不过，H5 的抗弯强度最高，达到 231.7 兆帕。此外，在抗冲击反面使用玄武岩织物或采用多层混合结构可进一步提高材料的抗冲击性能，中间为玄武岩层、两侧为凯夫拉纤维层的夹层结构复合材料的抗弯性能进一步提高。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.

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