碳酸镍对MPP/PEPA阻燃PP性能的影响  

Effects of Nickel Carbonate on Properties of Flame Retardant PP(MPP/PEPA)

作　　者：冯才敏[1] 刘洪波[1] 黄健光[1] 

机构地区：[1]顺德职业技术学院医学系,广东佛山528333

出　　处：《材料科学与工程学报》2010年第1期66-68,124,共4页Journal of Materials Science and Engineering

基　　金：顺德职业技术学院科研资助项目(2008-KJ02)

摘　　要：采用多聚磷酸蜜胺(MPP)和笼状季戊四醇磷酸酯(PEPA)复配阻燃剂,制备了具有良好阻燃性能的无卤阻燃PP,研究了碳酸镍(NC)用量对PP阻燃和力学性能的影响。结果表明:添加少量的NC即可显著提高材料的阻燃性能;当MPP/PEPA/NC用量分别为12%、8%和3%时,阻燃PP的氧指数高达37.5%,并具有较好的力学性能。TGA和EDX分析结果表明:添加NC可以催化MPP/PEPA间的酯化反应,促进材料成炭,并且在炭层中保留了更多的磷;SEM分析表明,NC可以起到稳定炭层,增加炭层厚度的作用。Halogen-free retardant polypropylene（PP） was prepared by using melamine polyphosphate（MPP） and 1-oxo-4-hydroxymethy1-2,6,7-trioxa-1-phospha-bicyclooctane（PEPA）.The effects of nickel carbonate（NC） contents on flame retardancy and mechanical properties were studied.It was found that a little amount of NC could improve the flame retardancy of PP remarkably;when the mass fraction of MPP,PEPA and NC were 12%,8% and 3%,respectively,the LOI of flame retardant PP was 37.5%,and it had good mechanical properties.TGA and EDX results showed that NC could catalyze esterification of MPP/PEPA and increase the char residue of flame retardant PP,and remain more phosphorus.SEM results revealed that NC can stabilize and thicken the char structure.

关 键 词：聚丙烯 多聚磷酸蜜胺 笼状季戊四醇磷酸酯 碳酸镍 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]