Effect of linear epoxy surface modifiers on properties of nylon/carbon fiber composites

doi:10.19936/j.cnki.2096-8000.20221128.011

Abstract

Abstract: Due to the poor interfacial adhesion between the carbon fiber and nylon, linear epoxy polymer and polyamide block linear epoxy were synthestized as reactants. And the carbon fiber without desizing was modified by above synthetic products, respectively. Secondly, nylon/carbon fiber composites were prepared, and the effect of surface modifiers on the properties of nylon/carbon fiber composites was studied by surface energy, mechanical properties and SEM. The results showed that the surface roughness of carbon fiber was increased by the modification of linear epoxy and its block polymer, and the dispersion component of surface energy of carbon fiber was increased from 5.63 mN/m to 22.64 mN/m. Furthermore, the bending strength and interlaminar shear strength of the composites were increased by 74.8% and 115.8%, respectively.

Key words: carbon fiber, composite, epoxy resin, nylon, modification

CLC Number:

TB332

ZHU Min-jie, WEI Long-sha, YAN Yi-wu. Effect of linear epoxy surface modifiers on properties of nylon/carbon fiber composites[J]. COMPOSITES SCIENCE AND ENGINEERING, 2022, 0(11): 77-81.

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