复合材料科学与工程 ›› 2023, Vol. 0 ›› Issue (3): 108-111.DOI: 10.19936/j.cnki.2096-8000.20230328.017

• 应用研究 • 上一篇    下一篇

DAP/聚苯醚改性氰酸酯树脂复合材料及其性能

步晓君1, 许星烨2, 贾宇翔2, 华娇1, 祝正浩1, 周权2*, 倪礼忠1   

  1. 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
  • 收稿日期:2022-02-07 出版日期:2023-03-28 发布日期:2023-04-28
  • 通讯作者: 周权(1973—),男,博士,副教授,主要从事高性能复合材料基体树脂方面的研究,qzhou@ecust.edu.cn。
  • 作者简介:步晓君(1989—),女,博士,主要从事树脂胶黏剂及复合材料方面的研究。

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

BU Xiaojun1, XU Xingye2, JIA Yuxiang2, HUA Jiao1, ZHU Zhenghao1, ZHOU Quan2*, NI Lizhong1   

  1. 1. Shanghai Great Composite Sci. & Tech. Co., Ltd., Shanghai 201400, China;
    2. 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
  • Received:2022-02-07 Online:2023-03-28 Published:2023-04-28

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。

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

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

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