中国塑料 ›› 2010, Vol. 24 ›› Issue (11): 84-88 .DOI: 10.19491/j.issn.1001-9278.2010.11.022

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酚氧基环磷腈阻燃环氧树脂的热解过程研究

王锐 谢吉星 焦运红 徐建中   

  1. 河北大学化学与环境科学学院
  • 收稿日期:2010-07-21 修回日期:1900-01-01 出版日期:2010-11-26 发布日期:2010-11-26

Investigated on Thermal Degradation of Hexakis (phenoxy) Cyclotriphosphazene Flame Retarded Epoxy Resin

Rui WANG   

  • Received:2010-07-21 Revised:1900-01-01 Online:2010-11-26 Published:2010-11-26

摘要: 用自制六氯环三磷腈通过亲核取代反应制备了六(酚氧基)环三磷腈(HPCP),并将HPCP与环氧树脂(EP)以不同比例共混,固化成型,采用氧指数仪和热质联用仪对其热性能和降解机理进行分析。结果表明,在EP中加入HPCP可提高材料的热解残炭率;当添加10份HPCP时,阻燃EP的极限氧指数可达27.0 %;HPCP的阻燃机理是其所含的氮磷2种元素的协效作用与自缩合放出H2O分子2种阻燃机理的共同作用。

关键词: 六酚氧基环三磷腈, 环氧树脂, 阻燃, 热解

Abstract: Hexakis(phenoxy) cyclotriphosphazene (HPCP) was prepared using homemade hexachlorocyclotriphosphazene through nucleophilic substitution reaction. The prepared HPCP was introduced into epoxy resin (EP) as a flame retardant and the thermal degradation properties and mechanism were characterized by LOI and TG-MS. It showed that the char yield increased obviously by the addition of HPCP and the LOI of EP/HPCP system with 10 phr HPCP increased to 27.0 %. The flame retardancy could be explained as the results of N-P synergistic effect and release of H2O from the self-condensation of HPCP.

Key words: hexakis(phenoxy) cyclotriphosphazene, epoxy resin, flame retardancy, thermal degradation