天津科技大学学报Issue(2)：33-36,4.
氧化铈协效膨胀型阻燃聚丙烯体系研究
Study of Synergistic Effects of Cerium Oxide on Intumescent Flame Retardant Polypropylene System
冯厚军 1郝晓鹏 1孙晓光 1唐旭东1
作者信息
- 1. 天津科技大学材料科学与化学工程学院，天津 300457
- 折叠
摘要
Abstract
Melamine salt of pentaerythritol phosphate(PPM)was synthesized with phosphoric acid,pentaerythritol and melamine. This flame retardant polypropylene containing cerium oxide(CeO2) can be used as a synergistic agent for the flame retardancy of intumescent flame retardant polypropylene system. The pendulum impact tester and universal material machine were used to evaluate the mechanical properties of intmescent flame retardant system;the limiting oxygen in-dex(LOI),thermogravimetric analysis(TGA),and scanning electron microscopy(SEM)were used to evaluate the synergis-tic effects of CeO2. The LOI value of the system increased when reasonable amount of CeO2 was added,and it reached maxi-mum(30%)when the mass fraction of PPM was 20% and CeO2 added was 1% of the PPM/PP system. The TGA data shows that CeO2 can enhance the thermal stability of the intumescent flame retardant polypropylene system at high temperature and effectively increase the char residue formation. The morphological structures observed with SEM demonstrate that reason-able amount of CeO2 can improve the morphologies of intumescent char layer and the properties of heat insulation and barrier material. The reasonable amount of CeO2 in the system can increase its impact strength and decrease its tensile properties.关键词
聚丙烯/膨胀型阻燃剂/氧化铈/协效Key words
polypropylene/intumescent flame retardant/cerium oxide/synergistic effect分类
化学化工引用本文复制引用
冯厚军,郝晓鹏,孙晓光,唐旭东..氧化铈协效膨胀型阻燃聚丙烯体系研究[J].天津科技大学学报,2013,(2):33-36,4.
