酚醛树脂改性模塑聚苯乙烯泡沫板的制备
China Synthetic Resin and Plastics（2015）
Abstract
为了改变热塑性聚苯乙烯保温板的燃烧本质,采用特殊阻燃剂,即热固性酚醛树脂/Al(OH)3阻燃液对聚苯乙烯颗粒进行阻燃包覆.通过对主要制备工艺的优化研究,成功制得热固性聚苯乙烯泡沫保温板,并解决了保温板阻燃和保温相互制约的难题.结果表明:包覆改性后的聚苯乙烯板遇火燃烧时不产生熔融收缩现象,表面只是发生炭化,板材各项性能均满足标准要求,保温板燃烧性能可达B1级,热值为20.3 MJ/kg,保温系数小于0.036 0 W/(m·K).
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