PE-HD/膨胀型阻燃剂/蛭石阻燃复合材料的制备与性能研究  

Research on the Preparation and Flammability of PE-HD/IFR/OVMT Flame Retarded Composite

作　　者：韦忠宇[1] 卢忠远[1] 王亮[1] 杨凯[1] 刘辉[1] 

机构地区：[1]西南科技大学材料科学与工程学院,四川绵阳621010

出　　处：《中国塑料》2008年第9期22-27,共6页China Plastics

基　　金：国家863计划资助项目(2003AA333030)

摘　　要：通过熔融插层法制备了高密度聚乙烯(PE-HD)/膨胀型阻燃剂(IFR)/有机蛭石(OVMT)阻燃复合材料,探讨了 IFR 中聚磷酸蜜胺(MPP)与季戊四醇(PER)质量比对复合材料阻燃性能以及 OVMT 添加量对熔融插层效果的影响。实验数据显示,在阻燃剂为30质量份的情况下,复合体系 IFR 中 MPP 与 PER 的最佳质量比为3:1,OVMT添加量为2%(质量分数,下同)时熔融插层效果最好。此时 PE-HD/IFR/OVMT 体系(70/28/2)的极限氧指数为28.6%,垂直燃烧(UL94)等级达到 V-1级。此外,实验还表明,适量增容剂高密度聚乙烯接枝马来酸酐对熔融插层效果有促进作用。Flame retarding composites of high density polyethylene （PE-HD）/intumescent （IFR）/or- ganic vermiculite （OVMT） were prepared via direct melt intercalation. The effect of the ratio of melamine polyphosphate （MPP） to pentaerythritol （PER） in the intumescent on composite＇s flammability and the effect of the loading of OVMT on the melt intercalation were investigated. It was found that the best weight ratio of MPP/PER was 3 ： 1 at a loading of flame retardant of 30 wt%. The best intercalation result was achieved with 2 wt% OVMT. The limited oxygen index of the PE-HD/IFR/ OVMT with a composition of 70/28/2 reached 28.6 %, while the UL94 was V-1 rating. Furthermore, a proper addition of PE-HI）-g-MAH to the system could promote the intercalation effect.

关 键 词：高密度聚乙烯 膨胀型阻燃剂 有机蛭石 熔融插层 高密度聚乙烯接枝马来酸酐 

分 类 号：TB332[一般工业技术—材料科学与工程]