Properties of DAP/polyphenylene oxide modified cyanate ester and its composites

doi:10.19936/j.cnki.2096-8000.20230328.017

Abstract

Abstract: The cyanate ester resin (CE) was modified by polyphenylene oxide (PPO) and diallyl phthalate (DAP), the curing behavior and heat resistance of DAP/PPO/CE resin were investigated by DSC and TGA. The glass fiber reinforced composites were prepared according to different mass ratios, and the performance of the composites were analyzed using DEA, flexural strength and interlaminar shear strength. The results show that DAP can promote the curing of PPO/CE resin, and improve the mechanical and dielectric properties of the composite while maintain the excellent heat resistance of the resin system. When DAP/PPO/CE=8/40/100 (mass ratio), the promoting effect, mechanical properties and dielectric properties are the best. The flexural strength and interlaminar shear strength can reach 651.4 MPa and 62.0 MPa, respectively.

Key words: diallyl phthalate, modified resin, mechanical properties, dielectric properties, composites

CLC Number:

TB332

BU Xiaojun, XU Xingye, JIA Yuxiang, HUA Jiao, ZHU Zhenghao, ZHOU Quan, NI Lizhong. Properties of DAP/polyphenylene oxide modified cyanate ester and its composites[J]. COMPOSITES SCIENCE AND ENGINEERING, 2023, 0(3): 108-111.

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