碳纳米管/HTPB复合粒子的制备及其催化性能研究  

Preparation of carbon nanotubes/HTPB and research of catalytic performance

作　　者：周建[1] 白华萍[1] 李凤生[1] 崔平[1] 陈令允[1] 姜炜[1] 

机构地区：[1]南京理工大学国家特种超细粉体工程技术研究中心,南京210094

出　　处：《固体火箭技术》2005年第3期195-197,共3页Journal of Solid Rocket Technology

基　　金：国家自然科学基金资助项目(50306008);总装预研基金资助项目(41328030507)

摘　　要：用HTPB对碳纳米管(CNTs)进行改性,改善其对AP热分解的催化性能,并使用TEM和FTIR对其进行表征。热重分析表明,CNTs/HTPB复合粒子中HTPB的含量为28.57%。采用差示热分析(DTA)研究了CNTs/HTPB复合粒子对AP热分解的催化性能。结果表明,CNTs/HTPB复合粒子对AP的热分解具有一定的催化性能,与纯AP相比,高温分解峰温提前了111.9℃,表观分解热由309.92 J/g提高到987.18 J/g,优于CNTs与AP的简单混合样,表明经过HTPB改性后CNTs对AP具有较好催化性能,同时AP与CNTs/HTPB复合可使其高温分解峰温进一步降低9.8℃。In order to improve the catalytic performance of carbon nanotubes （CNTs） on thermal decomposition of AP, carbon nanotubes were coated with hydroxyterminated polybutadiene （HTPB） , and characterized by TEM and FTIR, Thermal gravimetrical analysis results show that the content of HTPB in the CNTs/HTPB composite particles is up to 28.57%. Catalytic effect of CNTs/ HTPB composite particles on thermal decomposition of AP was investigated by using DTA. The results show that its catalytic effect is evident. Compared with pure AP, high temperature decomposition peak of CNTs/HTPB advances 111.9℃, and apparent decomposition heat increases from 309.92J/g to 987.18 J/g. CNTs/ HTPB composite particles are superior to simple mixture sample of CNTs and AP, and CNTs modified by HTPB possess good catalytic performance. At the same time, the composite of AP and CNTs/HTPB can make high temperature decomposition peak decrease 9.8℃ further.

关 键 词：碳纳米管/HTPB复合粒子 制备方法 催化性能 固体火箭推进剂 

分 类 号：V512.3[航空宇航科学与技术—航空宇航推进理论与工程]