塑料科技2017，Vol.45Issue(9)：50-54,5.DOI:10.15925/j.cnki.issn1005-3360.2017.09.007
PP复合材料的制备及其阻燃性能研究
Study on Preparation and Flame Retardancy of PP Composites
摘要
Abstract
PP composites were prepared by adding carbon microspheres (CMSs) and ammonium polyphosphate (APP) to polypropylene (PP).The flame retardancy,thermal stability and mechanical properties of PP composites were characterized by limiting oxygen index (LOI),thermogravimetric analyzer (TGA),conical calorimeter (CONE) and electronic universal testing machine (EUT),then the effects of mass ratio of CMSs and APP and the amount on the performance of PP flame retardant system were investigated.The results show that:when the mass ratio of APP and CMSs is 4:1 and the total amount is 30％,the LOI of PP/CMSs/APP composites is 28.7％,which is increased by 59.4％ than that of pure PP;the fire performance index (FPI) value is increased by about 5 times than that of pure PP;the peak heat release rate (PHRR),the total heat release (THR),the mean heat release rate (MHRR) and the mean effective heat of combustion (MEHC) are decreased by 31.11％,14.2％,24.5％ and 32.1％ respectively;the fire spread index (FGI) value is 55.3％ lower than that of pure PP,and the thermal stability of the composites is increased,and the charring capacity is significantly improved.The flame retardancy of PP is improved obviously.关键词
碳微球/聚磷酸铵/聚丙烯/阻燃性能/复合材料Key words
Carbon microspheres/Ammonium polyphosphate/Polypropylene/Flame retardant properties/Composites分类
化学化工引用本文复制引用
白洁,薛宝霞,宋英豪,彭云,牛梅..PP复合材料的制备及其阻燃性能研究[J].塑料科技,2017,45(9):50-54,5.基金项目
国家自然科学基金(51302183) （51302183）
山西省自然科学(青年)基金(2012021021-6) （青年）
