Preparation and performance research of carbon fiber reinforced polydicyclopentadiene composites based on vacuum-assisted resin infusion processing

doi:10.19936/j.cnki.2096-8000.20220628.014

Abstract

Abstract: In this paper, carbon fiber reinforced polydicyclopentadiene (PDCPD) composites, based on the liquid resin infusion process, were successfully prepared with the addition of polystyrene-polybutadiene-polystyrene (SBS) copolymer and tributyl phosphite for the purpose of tackifying and retarding polymerization, respectively. The composition of the hybrid resin system is determined by studying the influence of the tackifier content on the monomer viscosity and the mechanical properties of the resin after polymerization. The SBS/PDCPD/carbon fiber composite was prepared by the VARI process, and the mode Ⅰ interlaminar fracture toughness and flexural properties of were compared with the epoxy resin/carbon fiber composite. The results show that the initiation and propagation values of mode Ⅰ interlaminar fracture toughness of the carbon fiber composite prepared by SBS/PDCPD is 26.1% and 30.4% higher than the epoxy resin/carbon fiber composite, while the flexural strength is lower. The microstructure shows that the residual polydicyclopentadiene resin on the surface of the carbon fiber undergoes significant plastic deformation, but the bonding force between the resin and the carbon fiber is poor, and the load cannot be transmitted well between the resin and the fiber, resulting in poor flexural properties.

Key words: VARI process, polydicyclopentadiene, interlaminar fractures toughness, flexural properties, interface bonding, composites

CLC Number:

TB332

YANG Qing, CHENG Chao, DIAO Chun-xia, LU Yue-en, ZHOU Fei, DING Xiao-ma, CHEN Zheng-guo. Preparation and performance research of carbon fiber reinforced polydicyclopentadiene composites based on vacuum-assisted resin infusion processing[J]. COMPOSITES SCIENCE AND ENGINEERING, 2022, 0(6): 89-95.

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