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High-speed compression molding of continuous carbon fiber reinforced polypropylene

机译：连续碳纤维增强聚丙烯的高速压缩成型

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摘要

Carbon Fiber Reinforced Plastics (CFRP) are expected to be used for car component parts because of their superior mechanical properties and lightweight properties. Automotive lightening is expected by using CFRP for these parts. In addition, considering process time and recyclability, it is desirable to use thermoplastics resin for the matrix. Polypropylene (PP) is a typical thermoplastic and superior material for its low specific gravity, good moldability and low environmental burden, therefore the rate of PP being used has increased remarkably and it is expected to be used for the matrix of CFRP. However, since PP has poor interfacial adhesion to CF, improvement of interfacial properties is necessary. In this study, maleic anhydride-modified polypropylene was used to improve the interfacial adhesion between carbon fiber and matrix resin. Continuous carbon fiber reinforced polypropylene was fabricated by the high-speed compression molding method, and the effect of maleic anhydride-modified polypropylene on the mechanical properties of CFRP was examined. In consequence, the mechanical properties of CF/PP were improved by supplying 12.5wt% of maleic anhydride modified PP to PP.
机译：碳纤维增强塑料（CFRP）由于其卓越的机械性能和轻质性能，有望用于汽车零部件。通过在这些零件上使用CFRP，有望实现汽车轻量化。另外，考虑到处理时间和可回收性，期望将热塑性树脂用于基质。聚丙烯（PP）由于其低的比重，良好的可模塑性和较低的环境负担而是一种典型的热塑性和优良材料，因此，PP的使用率已显着提高，并有望用于CFRP基质。但是，由于PP与CF的界面粘合性差，因此需要改善界面特性。在这项研究中，使用马来酸酐改性的聚丙烯来改善碳纤维与基体树脂之间的界面粘合力。采用高速压缩成型法制备了连续碳纤维增强聚丙烯，研究了马来酸酐改性聚丙烯对CFRP力学性能的影响。结果，通过向PP中提供12.5wt％的马来酸酐改性的PP，改善了CF / PP的机械性能。

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