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首页> 外文会议>International conference on high performance and optimum design of structures and materials >The effect of crystallinity on the mechanical properties of plain woven carbon reinforced composites using polypropylene
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The effect of crystallinity on the mechanical properties of plain woven carbon reinforced composites using polypropylene

机译：结晶度对聚丙烯仿纺织碳增强复合材料机械性能的影响

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摘要

In this study, the effect of crystallinity on the mechanical properties of carbon fiber reinforced thermoplastics (CFRTP) was investigated. Plain woven carbon fiber was used as reinforcement. Polypropylene (PP) and maleic anhydride modified polypropylene (MAPP) were used as a matrix. The crystallinity of PP was controlled by using heat treatment after hot press molding of CFRTP. The range of crystallinity of PP and MAPP were from 26% to 40%. Flexural and izod impact tests of CFRTP were conducted based on Japanese Industrial Standard (JIS) K 7074 and K 7110, respectively. And double-notched test of CFRTP was conducted. Crystal morphologies of single carbon fiber added thermoplastics were observed by using polarization microscope. As a result, flexural strength and izod impact the value of CFRTP using PP increased with an increase of crystallinity. Flexural strength and izod impact value of CFRTP using MAPP almost did not change with an increase of crystallinity. But interfacial shear strength of CFRTP using MAPP increased with an increase of crystallinity. Crystallizations of PP and MAPP occurred around carbon fiber after heat treatment. Therefore, interfacial adhesion between fiber and resin increased with an increase of crystallinity.
机译：在该研究中，研究了结晶度对碳纤维增强热塑性塑料（CFRTP）力学性能的影响。用普通的编织碳纤维用作增强剂。聚丙烯（PP）和马来酸酐改性聚丙烯（MAPP）用作基质。通过使用CFRTP的热压成型后使用热处理来控制PP的结晶度。 PP和MAPP的结晶度范围为26％至40％。基于日本工业标准（JIS）K 7074和K 7110，进行CFRTP的弯曲和IZOD冲击试验。进行了CFRTP的双缺口试验。通过使用偏振显微镜观察单碳纤维添加热塑性塑料的晶体形态。结果，使用PP随着结晶度的增加而增加CFRTP的抗弯曲强度和Izod。 CFRTP使用MAPP的弯曲强度和Izod冲击值几乎不会随着结晶度的增加而变化。但使用MAPP的CFRTP界面剪切强度随着结晶度的增加而增加。热处理后碳纤维发生PP和MAPP的结晶。因此，纤维和树脂之间的界面粘附随着结晶度的增加而增加。

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