Thermal Decomposition of Nitrated Hydroxyl Terminated Polybutadiene
Data on the thermal stability of energetic binders was required in order to obtain safety information for handling, storage and use. The thermal behavior of NHTPB was determined by DSC measurement. The effects of epoxy and hydroxyl formed in the synthesis of NHTPB on the thermal decomposition were investigated. There were three distinct weight-loss stages at 150-500 ℃ in the decomposition of NHTPB: the O-NO2 homolysis and autocatalysis for the first stage, the depolymerization, cyclization, and crosslinking for the second stage and the decomposition of cyclized products for the third stage. Epoxy and hydroxyl had no effect on the first stage. With the increase of the epoxy content in the NHTPB, the exothermic peak temperature for the second stage and the endothermic peak temperature for the third stage decrease gradually. While the hydroxyl has almost no effect on these two stages. A new endothermic peak appeared at 50℃~150℃ and the peak temperature gradually decrease with the increase of the hydroxyl content.
WANG Qingfa WU Fangmin TAO Huabing WANG Li ZHANG Xiangwen MI Zhentao
School of Chemical Engineering & Technology, Tianjin University, Tianjin 300072, China
国际会议
2011 International Autumn Seminar on Propellants,Explosives and Pyrotechnics(2011国际推进剂、炸药、烟火技术秋季研讨会)
南京
英文
322-325
2011-09-20（万方平台首次上网日期，不代表论文的发表时间）