HMX/Cr_2O_3纳米复合含能材料的溶胶-凝胶法制备及表征  

Preparation and Characterization of HMX/Cr_2O_3 Nano-composite Energetic Material by Sol-gel Method

作　　者：宋雪雪[1] 张景林[1] 王金英[1] 刘树浩[1] 张伟[1] 

机构地区：[1]中北大学化工与环境学院,山西太原030051

出　　处：《火工品》2012年第5期36-39,共4页Initiators & Pyrotechnics

基　　金：中北大学科学基金

摘　　要：采用溶胶-凝胶（sol-gel）法和超临界流体（SCF）技术制备出HMX／Cr2O3纳米复合炸药。利用扫描电镜（SEM）和傅里叶变换红外光谱（FTIR）对其形貌和成分进行了分析和表征，测试了其热分解特眭、撞击感度和摩擦感度。结果表明：HMX和Cr2O3在纳米尺度均匀复合，HMX／Cr2O3纳米复合炸药的粒度为30~50nm，近球形；与纯HMX原料相比，不同配比的复合炸药的融化峰温和分解峰温有显著的改变，撞击感度均显著降低，摩擦感度降幅较小。HMX/Cr2O3 nano-composite energetic materials were prepared using sol-gel method and SCF technology, SEM and FTIR were used to analyze and characterize the surface topography and the components. DSC, the impact sensitivity and friction sensitivity for HMX/Cr2O3 nano-composites were also tested. The results showed that HMX and Cr203 was composited uniformly in nanometer, HMX/Cr2O3 composite particle size was from 30nm to 50nm, nearly spherical. Compared with raw HMX materials, the melting peak temperature and decomposition peak temperature of composite explosive with different proportion have significantly changed, impact sensitivity reduced obviously, while friction sensitivity declined slightly.

关 键 词：纳米复合含能材料 溶胶 凝胶 超临界流体 HMX CR2O3 差热分析 撞击感度 

分 类 号：TQ567[化学工程—炸药化工]