引用本文:
【打印本页】   【HTML】 【下载PDF全文】   查看/发表评论  【EndNote】   【RefMan】   【BibTex】
←前一篇|后一篇→ 过刊浏览    高级检索
本文已被:浏览 2897次   下载 909 本文二维码信息
码上扫一扫!
分享到: 微信 更多
纳米金属粉对HMX热分解特性的影响
江治1,2, 李疏芬1,2, 赵凤起3,4, 陈沛3,4, 阴翠梅3,4, 李上文3,4
1.中国科学技术大学化学物理系;2.安徽合肥230026;3.西安近代化学所;4.陕西西安710065
摘要:
运用高压差示扫描量热法和热重法研究了普通级以及纳米级的铝、镍、铜金属粉对于HMX热分解特性的影响 ,结果表明 ,纳米铜对于HMX的凝聚相分解作用最明显 ,且这种催化作用会由于纳米铜含量的减少或体系压强的增大而变弱。基于恒温DSC实验数据计算得到的活化能结果 ,提出了纳米铜对于HMX热分解的一次催化 ,二次催化以及反应作用部位的观点
关键词:  固体火箭推进剂  纳米金属粉  奥克托今  燃烧催化剂  热分解
DOI:
分类号:V512
基金项目:国家自然科学基金 (5 9986 0 0 3);国家重点实验室基金
Effect of nano metal powder on the thermal decomposition characteristics of HMX
JIANG Zhi,LI Shu fen,ZHAO Feng qi,,CHEN Pei,YIN Cui mei,LI Shang wen
1.Dept of Chemical Physics,China Univ of Science and Technology Hefei 230026,China;2.Xi’an Moden Chemical Research Inst ,Xi’an 710065,China
Abstract:
The thermal decomposition characteristics of HMX influenced by the addition of aluminum,nickel,copper with different particle size(general and nano)were studied by PDSC and TG The result shows that the nano copper have the greatest influence on the properties of condensed phase decomposition of HMX among the metal powders Such catalysis effect of nano copper will be weakened by the decrease of the content of naon copper or the increase of the system pressure Based on the kinetics result inferred from the isothermal DSC data,this catalysis mechanics are described to the efficacy of first catalysis,secondary catalysis and reaction site effect of nano copper on HMX
Key words:  Solid rocket propellant  Nano metal powder  Octogen  Combustion catalyst  Thermal decomposition