MOS阻燃动态硫化PP/EPDM性能研究  

Studies on Properties of Basic Magnesium Sulfated Whisker Flame Retarding Dynamic Vulcanization PP/EPDM

作　　者：严满清[1] 唐龙祥[2] 王海燕[1] 刘春华[2] 

机构地区：[1]安徽大学化工学院与安徽省绿色高分子材料重点实验室,安徽合肥230039 [2]合肥工业大学化工学院,安徽合肥230009

出　　处：《现代塑料加工应用》2006年第3期48-51,共4页Modern Plastics Processing and Applications

基　　金：国家自然科学基金(项目号50073022)资助

摘　　要：结合碱式硫酸镁晶须(MOS)的补强和阻燃功能,以微胶囊红磷(MRP)为协效剂,制备了无卤阻燃型PP(聚丙烯)/EPDM(三元乙丙橡胶)/MOS/MRP共混物,并与PP/EPDM/Mg(OH)2/MRP共混物进行比较。氧指数(LOI)及垂直燃烧(UL-94)测试表明MOS的阻燃效果优于Mg(OH)2。力学性能测试表明,MOS对PP/EPDM热塑性弹性体具有一定的增强作用,PP/EPDM/MOS/MRP阻燃体系的力学性能明显优于PP/EPDM//MRP阻燃体系。而PP/EPDM热塑性弹性体的动态硫化进一步提高了PP/EPDM/MOS/MRP阻燃体系的力学与阻燃性能。Considering the reinforcement and flame retardant function of basic magnesium sulfated whisker （MOS）, the PP/EPDM/MOS/MRP composites were prepared, and were compared with PP/EPDM/Mg（OH）2/MRP composites. The results from limiting oxygen index （LOI） and vertical combustion （UL-94） tests showed that the flame retardant efficiency of MOS was higher than that of Mg（OH）2. The mechanical properties test showed that PP/EPDM was reinforced by MOS. The mechanical properties of PP/EPDM/MOS/MRP composites were higher in comparison with PP/EPDM/Mg（OH）2/MRP composites. The mechanical, processing and flame retardant properties of PP/EPDM/MOS/MRP composites were improved by the dynamic vulcanization of PP/EPDM.

关 键 词：聚丙烯 三元乙丙橡胶 碱式硫酸镁晶须 氢氧化镁 动态硫化 无卤阻燃 力学性能 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]