化工学报2011，Vol.62Issue(5)：1290-1295,6.DOI:10.3969/j.issn.0438-1157.2011.05.017
水分对过氧化苯甲酸叔丁酯热稳定性的影响
Effect of water on thermal stability of tert-butyl peroxy benzoate
蒋慧灵 1闫松 1魏彤彤2
作者信息
- 1. 中国人民武装警察部队学院消防工程系,河北廊坊065000
- 2. 黑龙江省消防齐齐哈尔市消防支队,黑龙江齐齐哈尔161041
- 折叠
摘要
Abstract
It is very necessary to study the thermal stability of organic peroxides because they can cause easily explosions or fires. The thermal decomposition curves of dried and wetted (with different content of water) tert-butyl peroxy benzoate (TBPB) samples were measured by a adiabatic accelerating rate calorimeter (ARC). Their reaction order n, rate constant k and activation energy Ea were calculated from these curves before and after modification of instrument constant, i.e., thermal inertia factor Φ of ARC. The adiabatic decomposition parameters obtained show that TBPB is of a characteristic i. e. it can be easily decomposed by water. The decomposition is easier and activation energy lower for wetted TBPB sample, although for dried TBPB the rate of temperature rise is the biggest and the rise of adiabatic temperature the highest, and the decomposition the most intense, and the risk the highest. However, in order to control fire or explosion of TBPB, it should be stored at drying condition and the temperature should not be larger than its initial decomposition temperature 79.84℃.关键词
绝热加速量热仪/过氧化苯甲酸叔丁酯/热稳定性Key words
accelerating rate calorimeter (ARC)/ tert-butyl peroxy benzoate (TBPB)/ thermal stability分类
化学化工引用本文复制引用
蒋慧灵,闫松,魏彤彤..水分对过氧化苯甲酸叔丁酯热稳定性的影响[J].化工学报,2011,62(5):1290-1295,6.
