摘要
利用差示扫描量热(DSC)法,得到端羟基聚醚(HTPE)/六硝基六氮杂异伍兹烷(CL-20)和HTPE/奥克托今(HMX)混合体系在不同升温速率(2.5、5.0、10.0、20.0℃/min)下的热分解曲线;用Kissinger公式和Ozawa公式,计算了HTPE/CL-20和HTPE/HMX体系热分解的表观活化能。结果表明,HTPE/CL-20混合体系表观活化能分别为132.11、130.60 k J/mol;HTPE/HMX混合体系表观活化能分别为193.80、198.57 k J/mol。对于同一体系,2种公式计算的结果基本一致。与单组分(CL-20或HMX)相比,HTPE/CL-20和HTPE/HMX体系的表观活化能分别降低了28.3~29.8 k J/mol和80.2~85.0 k J/mol。HTPE均降低了2种高能组分(CL-20和HMX)的分解放热峰温度,CL-20和HMX的分解放热峰峰温降低了36.0℃和17.3℃。HTPE/CL-20体系分解放热量减少了354.5 J/g,而HTPE/HMX体系分解放热量不变。
The thermal decomposition behavior of hydroxyl-termined polyether（HTPE）/hexanitrohexaazaisowurtzitane（CL-20）and HTPE/octogen（HMX） mixed systems under different heating rates were investigated by DSC.The thermal decomposition apparent activation energy of HTPE/CL-20 and HTPE/HMX mixed system were calculated by Kissinger＇s and Ozawa＇s methods.Results show that two kinds of calculated apparent activation energy of HTPE/CL-20 mixed system are 132.11 k J/mol and 130.60 k J/mol,respectively.Two kinds of calculated apparent activation energy of HTPE/HMX mixed system are 193.80 k J/mol and 198.57 k J/mol,respectively.Both results are about the same for the same system calculated with different method.Compared with single component（such as CL-20 or HMX）,the apparent activation energy of HTPE/CL-20 and HTPE/HMX mixed systems decreased by 28.3～ 29.8 k J/mol and 80.2 ～ 85.0 k J/mol,respectively.HTPE decreased the decomposition peak temperature of the two kinds of energetic components（CL-20 and HMX）,the decomposition peak temperature of CL-20 in the HTPE/CL-20 mixed system reduces36.0 ℃,and the decomposition peak temperature of HMX in the HTPE/HMX mixed system reduces 17.3 ℃.The decomposition of the heat release of HTPE/CL-20 mixed systems decreased 354.5 J/g,while the decomposition of the heat release of HTPE/HMX mixed systems remained unchanged.
出处
《固体火箭技术》
EI
CAS
CSCD
北大核心
2017年第1期70-75,共6页
Journal of Solid Rocket Technology
基金
武器装备预先研究项目(51328040301)
