摘要
利用热分析仪对四苯基双酚A二磷酸酯(BDP)及BDP/纳米SiO2阻燃PC/ABS进行了TG分析,研究了BDP及其复配体系阻燃PC/ABS的降解过程,在动力学理论模型基础上,求出了阻燃PC/ABS的热力学参数-活化能。实验结果表明,与未阻燃PC/ABS相比,阻燃PC/ABS在600℃残炭率增加,15%BDP阻燃PC/ABS的残炭率由未阻燃的16.55%增加到22.16%,15%BDP/7%SiO2阻燃PC/ABS的残炭率增加到25.24%;BDP及其复配体系阻燃PC/ABS活化能显著提高,15%BDP阻燃PC/ABS的活化能由未阻燃的91.55kJ.mol-1提高到143.83kJ.mol-1,15%BDP/7%SiO2阻燃PC/ABS的活化能提高到254.08kJ.mol-1,体系耐热性能好,阻燃效果明显,复配体系阻燃效果进一步提高。
TG curves of bisphenol A diphosphate（BDP） and BDP/SiO2 flame-retarded PC/ABS resins are analyzed using thermal analytical apparatus and their pyrolysis courses are studied. Based on the analysis of academic model of thermodynamics, the sthermodynamics parameter-activation energy of flame-retarded PC/ABS are obtained from thermal analytical data. The results show that because of the addition of retardants, char formation at 600℃ of flame-retarded PC/ABS increased, 15% BDP/PC/ABS increased from 16. 55% to 22.16% , 15% BDP/7% SiOJPC/ABS increased to 25.24%. The active energy of flame-retarded PC/ABS obviously increases, 15% BDP/PC/ABS increased from 91.55kJ·mol^-1 to 143.83kJ·mol^-1, 15% BDP/7% SiO2/PC/ABS increased to 254.08kJ·mol^-1. And both its thermal stability and heat-resistant have been greatly improved.
出处
《火灾科学》
CAS
CSCD
2009年第2期95-100,共6页
Fire Safety Science
基金
公安部应用创新项目(2006YYCXWJXYXY094).
关键词
热分析
BDP
动力学
活化能
Thermal analysis
Bisphenol A diphosphate
Thermodynamics
Activation energy
