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Yuanyi Shao,Masaya Matsushita,Yang Yang,Akio Ohtani,Defang Zhao,Ruohua Liu,Yuqiu Yang 한국섬유공학회 2020 Fibers and polymers Vol.21 No.5
In this work, nonwoven fabrics made from carbon fibers (CFs) and polypropylene (PP) fibers were manufacturedthrough a carding process and a cross-laying process and reinforced by either a needle punching method or a thermobondingmethod. The effects of the carding parameters (adding oil, increasing the gauge and decelerating the speed) andreinforcement method (needle punching method or thermobonding method) on the anisotropic mechanical properties of hotpressedCF/PP composites were investigated. Additionally, the length, distribution and orientation of carbon fibers in the hotpressedcomposites were studied. The carbon fibers were oriented by the carding method, and the composites exhibitedanisotropic properties. Moreover, the fiber distribution results indicated that increasing the gauge and decelerating the speedhad a slightly negative influence on the distribution of carbon fibers and that the cross-laying process led to a uniformdistribution of fibers. Furthermore, adjusting the carding parameters and reinforcement method could reduce the damagesustained by carbon fibers during manufacturing and subsequently improve the mechanical properties of the CF/PPcomposites in the transverse direction (TD).
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