分别采用介孔分子筛SBA-15原位聚合及SBA-15负载催化剂六氯化钨原位聚合的方法制备了SBA-15/聚双环戊二烯(PDCPD)复合材料,研究了SBA-15/PDCPD复合材料的阻燃性能.研究结果表明:采用原位聚合方法制备的复合材料,SBA-15孔道中的双环戊二烯(DCPD)单体难以发生聚合反应生成PDCPD分子链,SBA-15易团聚,导致复合材料的阻燃性能没有明显改善;采用SBA-15负载催化剂原位聚合的方法制备的复合材料,在SBA-15孔道中大量生成PDCPD分子链.SBA-15的孔壁起到隔热作用,延缓介孔内聚合物分子链的热分解,使复合材料的热稳定性明显提高,水平燃烧速率下降,SBA-15与PDCPD的质量比为3:100时,复合材料的极限氧指数由PDCPD的20.1增至21.7,表明SBA-15可提高PDCPD的阻燃性能.
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