机构地区: 安徽大学化学化工学院安徽省绿色高分子材料重点实验室
出 处: 《塑料》 2009年第2期13-15,共3页
摘 要: 以微胶囊红磷(MRP)、有机化蒙脱土(OMMT)、SiO2和TiO2等为协效剂,制备了无卤阻燃型PP/纳米Mg(OH)2复合材料,并与PP/微米Mg(OH)2复合材料进行比较。氧指数(LOI)测试表明:纳米Mg(OH)2的阻燃效果优于微米Mg(OH)2,OMMT的协效作用最佳。力学性能测试表明:纳米Mg(OH)2阻燃体系的力学性能明显优于微米Mg(OH)2阻燃体系。熔体指数(MI)测试结果表明:随Mg(OH)2含量增加,复合材料的加工性能变差,但纳米Mg(OH)2阻燃体系的加工性能优于微米Mg(OH)2阻燃体系。 The free-halogen flame-retardant PP/nano-Mg(OH) 2 composites were prepared and compared with PP/micron- Mg( OH ) 2 composites. The synergistic effects of microcapsulated red phosphorus( MRP), organie-montmorillonite ( OMMT), silicon dioxide ( SiO2 ) ,titanium dioxide (TiO2 ) were also studied. The results from limiting oxygen index (LOI) tests showed that the flame-retardant efficiency of nano-Mg (OH) 2 was higher than that of micron-Mg (OH) 2 composites. The mechanical property test showed that tensile strength, notched izod impact strength at room temperature and elongation at break of PP/nano- Mg(OH) 2 composites were higher in comparison with PP/rnicron-Mg(OH) 2 composites. The melt index(MI) test showed that processing property of composites became worse while the contents of Mg(OH) 2 increased, however, processing property of PP/ nano-Mg(OH) 2 composites was better than that of PP/ mieron-Mg(OH) 2 composites.
关 键 词: 聚丙烯 纳米 微米 无卤阻燃 力学性能 加工性能
领 域: [化学工程]