含能材料
含能材料
함능재료
ENERGETIC MATERIALS
2010年
1期
37-41
,共5页
何少蓉%衡淑云%张林军%刘子如
何少蓉%衡淑雲%張林軍%劉子如
하소용%형숙운%장림군%류자여
物理化学%热分解%量气法%动力学参数%混合体系热行为
物理化學%熱分解%量氣法%動力學參數%混閤體繫熱行為
물이화학%열분해%량기법%동역학삼수%혼합체계열행위
physical chemistry%thermal decomposition%gasometric method%kinetic parameter%thermal behavior
用 NBK型"拉瓦"量气测试系统研究了较高温度(160~200 ℃)下六硝基六氮杂异伍兹烷(CL-20)与硝化棉和硝化甘油双基吸收药(NC+NG)、环氧乙烷与四氢呋喃共聚醚(PET)、3,3-双叠氮甲基氧杂环丁烷与四氢呋喃共聚物(PBT)三种黏合剂的全分解过程,从放气规律和动力学的变化阐述了CL-20及其与三种黏合剂混合体系的热行为.结果表明: CL-20 及其与(NC+NG) 、PET、PBT三种黏合剂混合体系的热分解表观活化能分别为176.68,176.31,136.12,127.0 kJ·mol~(-1).(NC+NG)黏合剂对CL-20的分解反应速度以及活化能几乎没有影响;CL-20初期分解的气体产物与PET和PBT两种黏合剂发生"非均相的气相/凝聚相反应",使得混合体系的分解表观活化能降低,分解速度显著加快.同时,(NC+NG)、PET和PBT没有改变CL-20分解的机理函数.
用 NBK型"拉瓦"量氣測試繫統研究瞭較高溫度(160~200 ℃)下六硝基六氮雜異伍玆烷(CL-20)與硝化棉和硝化甘油雙基吸收藥(NC+NG)、環氧乙烷與四氫呋喃共聚醚(PET)、3,3-雙疊氮甲基氧雜環丁烷與四氫呋喃共聚物(PBT)三種黏閤劑的全分解過程,從放氣規律和動力學的變化闡述瞭CL-20及其與三種黏閤劑混閤體繫的熱行為.結果錶明: CL-20 及其與(NC+NG) 、PET、PBT三種黏閤劑混閤體繫的熱分解錶觀活化能分彆為176.68,176.31,136.12,127.0 kJ·mol~(-1).(NC+NG)黏閤劑對CL-20的分解反應速度以及活化能幾乎沒有影響;CL-20初期分解的氣體產物與PET和PBT兩種黏閤劑髮生"非均相的氣相/凝聚相反應",使得混閤體繫的分解錶觀活化能降低,分解速度顯著加快.同時,(NC+NG)、PET和PBT沒有改變CL-20分解的機理函數.
용 NBK형"랍와"량기측시계통연구료교고온도(160~200 ℃)하륙초기륙담잡이오자완(CL-20)여초화면화초화감유쌍기흡수약(NC+NG)、배양을완여사경부남공취미(PET)、3,3-쌍첩담갑기양잡배정완여사경부남공취물(PBT)삼충점합제적전분해과정,종방기규률화동역학적변화천술료CL-20급기여삼충점합제혼합체계적열행위.결과표명: CL-20 급기여(NC+NG) 、PET、PBT삼충점합제혼합체계적열분해표관활화능분별위176.68,176.31,136.12,127.0 kJ·mol~(-1).(NC+NG)점합제대CL-20적분해반응속도이급활화능궤호몰유영향;CL-20초기분해적기체산물여PET화PBT량충점합제발생"비균상적기상/응취상반응",사득혼합체계적분해표관활화능강저,분해속도현저가쾌.동시,(NC+NG)、PET화PBT몰유개변CL-20분해적궤리함수.
The thermal behaviors of CL-20 mixed with three binders ((NC+NG),PET and PBT) at 160-200 ℃ were investigated by NBK LAWA gasometric measuring system. The thermal behaviors were described from the changes of evolved gases and decomposition kinetics. Results show that the apparent activation energies of CL-20 and its mixed systems with (NC+NG),PET and PBT are 176.68,176.31,136.12 and 127.0 kJ·mol~(-1),respectively. There is less influence of (NC+NG) binder on the decomposition rate and the apparent activation energy of CL-20. The heterogeneous gas/condensed phase reactions between gas products from CL-20 initial decomposition and PET or PBT decrease appear activation energies and increase obviously decomposition rates for CL-20/PET and CL-20/PBT systems. While the mechanism functions of CL-20 decomposition in the three systems are not changed by (NC+NG),PET and PBT.