中国塑料 ›› 2009, Vol. 23 ›› Issue (10): 73-77 .DOI: 10.19491/j.issn.1001-9278.2009.10.017

• 助剂 • 上一篇    下一篇

有机硅磷杂化改进环氧树脂耐热性、韧性和阻燃性的研究

胡朝辉 刘伟区 王政芳 马松琪   

  1. 中科院广州化学研究所
  • 收稿日期:2009-06-24 修回日期:1900-01-01 出版日期:2009-10-26 发布日期:2009-10-26

Study of Heat Resistance, Toughness and Frame Retardancy of Epoxy Resins Modified by Hybrid of Organosilicon and Organophosphorus

HU Chao-hui LIU Wei-qu WANG Zheng-fang MA Song-qi   

  • Received:2009-06-24 Revised:1900-01-01 Online:2009-10-26 Published:2009-10-26
  • Contact: LIU Wei-qu

摘要: 将聚甲基三乙氧基硅烷(PTS)与一种合成的含磷硅烷偶联剂以一定配比进行反应,所得改性剂添加到双酚A环氧树脂E51/酚醛树脂固化体系中,对改性环氧树脂固化产物的玻璃化转变温度、热失重、冲击强度、拉伸强度、极限氧指数进行了测试,并对固化产物的表面形貌进行了SEM观察。结果表明,在保持拉伸强度基本不变的同时,改性环氧树脂固化物的玻璃化转变温度、高温热稳定性、冲击强度、极限氧指数均有不同程度提高,使改性环氧树脂的性能得到综合提升。

关键词: 环氧树脂, 有机硅, 有机磷, 耐热性, 增韧, 阻燃

Abstract: A kind of modifier was prepared via the hydrolysis of phosphorus-containing silicon coupling agent and polymethyltriethoxysilane, which was used in an epoxy/novolac curing system. Determinations of differential scanning calorimetry, thermogravimetric analysis, scanning electron microscopy, as well as limited oxygen index, impact and tensile testing were carried out to characterized the cured products. It showed that the modified epoxy resin possessed higher glass transition temperatures, impact strength, limited oxygen index, and better thermal stability.

Key words: epoxy resin, organosilicon, organophosphorus, heat resistance, toughness, flame retardancy

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