DAP/聚苯醚改性氰酸酯树脂复合材料及其性能  

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

作　　者：步晓君 许星烨 贾宇翔 华娇 祝正浩 周权[2] 倪礼忠 BU Xiaojun;XU Xingye;JIA Yuxiang;HUA Jiao;ZHU Zhenghao;ZHOU Quan;NI Lizhong(Shanghai Great Composite Sci.&Tech.Co,Ltd.,Shanghai 201400,China;Key Laboratory for Special Polymer Materials and Related Technology,School of Materials Science and Engineering,East China University of Science and Technology,Shanghai 200237,China)

机构地区：[1]上海固瑞泰复合材料科技有限公司,上海201400 [2]华东理工大学材料科学与工程学院特种功能高分子材料及相关技术教育部重点实验室,上海.200237

出　　处：《复合材料科学与工程》2023年第3期108-111,119,共5页Composites Science and Engineering

摘　　要：邻苯二甲酸二烯丙酯(DAP)和聚苯醚(PPO)共同改性氰酸酯树脂(CE),利用差式扫描量热法(DSC)和热失重分析(TGA)考察了DAP/PPO/CE树脂的固化行为和耐热性能。按照不同质量比制备了DAP/PPO/CE玻璃纤维复合材料,通过介电分析仪(DEA)、弯曲强度和层间剪切强度测试分析该复合材料的各项性能。结果表明,DAP的加入促进了PPO/CE树脂的固化,改善了复合材料的力学性能和介电性能,树脂体系仍保持优异的耐热性能,并且在DAP/PPO/CE=8/40/100(质量比)时促进效果、力学性能和介电性能最为优异,弯曲强度可达651.4 MPa,层间剪切强度可达62.0 MPa。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.

关 键 词：邻苯二甲酸二烯丙酯 改性树脂 力学性能 介电性能 复合材料 

分 类 号：TB332[一般工业技术—材料科学与工程]