摘要
采用Discover/MaterialStudio中的分子动力学(COMPASS力场、NVT)方法及smartminimizer结构优化方法,对两种氟聚合物在TATB不同晶面上吸附行为进行模拟和结构优化后发现:(1)二者相互作用时,TATB原子位置变化的大小次序为:(010)>(100)>(001);而氟聚合物的展开程度按以上次序增加。(2)TATB晶体对两种聚合物都是吸引的,可以用F2311及F2314来包覆TATB晶体;且F2314对TATB晶体的包覆效果要优于F2311。(3)TATB不同晶面吸附能力的大小次序为:(010)>(001)>(100)。
The adsorption manners of two fluorine-polymers on TATB crystal surfaces are simulated and the structures are optimized by MD(COMPASS forcefield,NVT) method and smart minimizer method in Discover/Material Studio. Results show that: (1) The order of atomic positions changes of TATB and the spreading size of polymers is: (010) 〉 (100) 〉 (001) , when there are interactions between them. (2) Two polymers can be attracted by TATB crystal. TATB can also be bonded by F2311 and F2314 which has more efficiency than F2311. (3) The abilitiy of TATB crystal surfaces to adsorb polymers decreases as follows: (010) 〉 (001) 〉(100).
出处
《含能材料》
EI
CAS
CSCD
2005年第4期238-241,共4页
Chinese Journal of Energetic Materials
基金
中国工程物理研究院基金项目(42101060102
2002Z0501)