摘要
三嗪成炭剂与聚磷酸铵(APP)复配为膨胀型阻燃剂(IFR),加入埃洛石纳米管(HNTs)形成膨胀型阻燃聚丙烯(PP)复合材料。结果表明:HNTs与IFR对阻燃PP有协同作用,当IFR添加量为17(质量份数,下同),HNTs分添加量为3,阻燃效果达到UL94 V-0级。分析PP/IFR/HNTs体系的阻燃机理,得出HNTs与APP有交联成炭作用,燃烧时能快速在材料表面形成炭层和熔融物,HNTs也起到骨架支撑作用,在两种相互作用下,使PP/IFR/HNTs具有优异的阻燃性能。
A charring agent and APP were mixed to form intumescent flame retardant （IFR）. Then IFR and halloysite nanotubes（HNTs） were prepared to form polypropylene composite. It was found that HNTs and IFR had a synergistic effect of intumescent flame retardant of polypropylene. The PP/IFR/HNTs system reached UL94 V-0 rating when IFR and HNTs addition were 17% and 3%. And the reasonable mechanism of flame retardant was given HNTs and APP had a synergistic effect of carbon crosslinking. When the material was burning, IFR-HNTs formed a carbon layer and melt on the surface of the material. HNTs also had a good effect on framework support. Based on two reasons,PP/IFR/HNTs had a good performance on flame retardant.
出处
《塑料》
CAS
CSCD
北大核心
2017年第1期22-25,共4页
Plastics
关键词
埃洛石纳米管
膨胀型阻燃
聚丙烯
阻燃机理
聚磷酸铵
halloysite
intumescent flame retardants
polypropylene
mechanism of flame retardant
ammonium polyphosphate
