木槿和花楸植物纤维增强杂化环氧复合材料的吸水性能和力学性能实验研究:纳米石墨烯填料重量分数的影响

IF 1.1 4区 工程技术 Q4 ENGINEERING, CHEMICAL
Mani Sasi Kumar, Selvaraj Sathish, Mani Makeshkumar, Sivanantham Gokulkumar
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引用次数: 0

摘要

摘要本研究旨在以环氧树脂(E)为基体,以凯撒草纤维(CF)和玫瑰草纤维(RF)为增强剂,制备石墨烯(Gr)填料的新型杂化复合材料。采用压缩成型的方法,在恒定纤维的环氧树脂基体中制备了可变重量石墨烯填料的杂化复合材料。结果表明,含6 wt% Gr的复合材料的力学特性表现出最大的弯曲强度、拉伸强度和冲击强度。这是因为6wt % Gr颗粒更均匀地分散在环氧基体中,增强剂与基体之间的相容性更好,从而提高了机械性能。含8wt % Gr填料的复合材料硬度等级最高,吸水率最低。结果表明,在CF/RF/E复合材料中加入石墨烯填料,显著提高了材料的力学性能和吸水性能。用扫描电子显微镜对制备的样品表面进行了观察。优化了石墨烯填料的重量分数,以增强复合材料的机械性能,用于各种工程应用,如汽车、国防、海洋、体育和乐器。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Experimental studies on water absorption and mechanical properties of Hibiscus s abdariffa (Roselle) and Urena lobata (Caesar weed) plant Fiber–Reinforced hybrid epoxy composites: effect of weight fraction of nano-graphene fillers
Abstract This study aimed to develop novel hybrid composites with graphene (Gr) fillers incorporated in the epoxy (E) matrix with Caesar weed fiber (CF), and roselle fiber (RF) as reinforcements. Compression molding methods were used to fabricate hybrid composite materials with a variable-weight graphene filler in a constant fiber epoxy matrix. On the basis of the results, the mechanical characteristics of the composite with 6 wt% Gr exhibited the greatest flexural strength, tensile strength, and impact strength. This occurred because 6 wt% Gr particles are more uniformly dispersed in an epoxy matrix, resulting in better compatibility between reinforcement and matrix, thus increasing the mechanical properties. The composite with 8 wt% Gr filler reinforcement had the maximum hardness rating and the lowest percentage of water absorption. According to the results, adding graphene fillers to the CF/RF/E composite significantly improved the mechanical and water absorption performances. Scanning electron microscopy was used to examine the surfaces of the fabricated samples. The weight fraction of the graphene filler was optimized to enhance the mechanical properties of the composite for use in various engineering applications, such as automobile, defense, marine, sports, and musical instruments.
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来源期刊
International Polymer Processing
International Polymer Processing 工程技术-高分子科学
CiteScore
2.20
自引率
7.70%
发文量
62
审稿时长
6 months
期刊介绍: International Polymer Processing offers original research contributions, invited review papers and recent technological developments in processing thermoplastics, thermosets, elastomers and fibers as well as polymer reaction engineering. For more than 25 years International Polymer Processing, the journal of the Polymer Processing Society, provides strictly peer-reviewed, high-quality articles and rapid communications from the leading experts around the world.
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