摘要
为了考察自制膦酸酯阻燃剂(DP-FR)对热塑性聚酯弹性体(TPEE)热性能的影响,测得了阻燃TPEE(FR-TPEE)共混材料空气气氛下非等温热重(TG)数据,利用Kissinger和Flynn-Wall-Ozawa两种动力学方法,分别求得了FR-TPEE热氧降解反应活化能Ea.结果表明:DP-FR对FR-TPEE的初始分解温度、最大降解温度影响不大,对反应活化能稍有影响,阻燃材料仍具有很高的热稳定性.研究结果还表明:DP-FR提高了FR-TPEE热氧降解的质量保留率,显示出较好的阻燃性.
The effects of phosphonate ester flame retardant (DP - FR) on thermal stability of flame retardant thermoplastic polyester elastomer (FR - TPEE) blends were studied. The kinetics of the thermal oxidative degradation of FR - TPEE blends were investigated by non-isothermal thermogravimetric analysis in air. Kissinger method and Flynn-Wall-Ozawa method had been used to determine the activation energies of FR - TPEE degradation, respectively. The results showed that DP - FR had a little influence on initial degradation temperature, maximum degradation temperature and activation energies, but the FR - TPEE blends still had good thermal stability. The results also showed that FR- TPEE blends had high char yield, and also demonstrated the good flame retardancy of DP- FR.
出处
《东华大学学报(自然科学版)》
CAS
CSCD
北大核心
2009年第1期17-22,共6页
Journal of Donghua University(Natural Science)
关键词
热塑性聚酯弹性体(TPEE)
阻燃剂
动力学
热氧降解
反应活化能
thermoplastic polyester elastomer (TPEE)
flame retardant (FR)
kinetics
thermal oxidative degradation
activation energy