中国塑料 ›› 2010, Vol. 24 ›› Issue (02): 42-46 .DOI: 10.19491/j.issn.1001-9278.2010.02.008

• 材料与性能 • 上一篇    下一篇

含磷有机硅氧烷改性环氧树脂酚醛固化体系性能研究

王政芳 刘伟区 胡朝辉 马松琪   

  1. 中科院广州化学研究所 中国科学院广州化学研究所,中国科学院研究生院 中国科学院广州化学研究所,中国科学院研究生院
  • 收稿日期:2009-09-23 修回日期:2009-10-29 出版日期:2010-02-26 发布日期:2010-02-26

Study on the Properties of the Epoxy Resin/Novolac System Modified by Phosphorus containing Organosiloxane

LIU Wei-Qu   

  • Received:2009-09-23 Revised:2009-10-29 Online:2010-02-26 Published:2010-02-26
  • Contact: LIU Wei-Qu

摘要: 首先用 -环氧丙氧基三甲氧基硅氧烷和亚磷酸二乙酯(DEP)制备了一种含磷有机硅氧烷(GPTMS-DEP),并对其改性的环氧树脂酚醛固化体系的阻燃性、耐热性及相容性进行了研究。结果表明,固化物的极限氧指数达到30 %;玻璃化转变温度为157 ℃,比纯环氧树脂提高了约45 ℃;在720℃的残炭量及失重50 %时的温度均比纯环氧树脂有明显提高;扫描电子显微镜照片显示,当GPTMS-DEP含量在20 %以下时,GPTMS-DEP改性环氧树脂各组分间相容性良好。

关键词: 环氧树脂, 含磷有机硅氧烷, 阻燃性能, 热性能

Abstract: A phosphorus containing organosiloxane (GPTMS-DEP) was prepared using silane coupling agent and DEP, which was used as a modifier in epoxy systems. The flame retardancy of the modified epoxy resin reached 30 %. The glass transition temperatures (Tg) was 157 ℃, 45 ℃ higher than that of the neat system. The residual char yield under 720℃ and the temperature of 50 % weight loss increased obviously. SEM showed that GPTMS-DEP and epoxy resin was compatible when the content of GPTMS-DEP was below 20 %.

Key words: epoxy resin, organsilicon containing phosphorus, flame retardancy, thermal behavior