锆/聚叠氮缩水甘油醚复合粒子的制备、表征及静电性能  

Preparation,Characterization and Electrostatic Properties of GAP-coated Zirconium Composite Particles

作　　者：姜菡雨[1] 赵凤起[1] 郝海霞[1] 曲文刚[1] 徐司雨[1] 安亭[1] 李猛[1] 

机构地区：[1]西安近代化学研究所燃烧与爆炸技术重点实验室,陕西西安710065

出　　处：《兵工学报》2016年第1期50-55,共6页Acta Armamentarii

基　　金：国家自然科学基金项目(21173163;21473130)

摘　　要：锆粉具有密度大、体积热值高、点火和燃烧性能良好的优点,是提升推进剂密度比冲的重要燃料,但由于其静电火花感度高,使用中易燃烧,在推进剂中应用存在安全隐患。为提高锆粉的抗静电性能,研究采用一种推进剂常用的聚叠氮缩水甘油醚(GAP)含能粘合剂,对锆粉进行包覆改性,获得了Zr/GAP复合粒子。研究其形态、结构、热性能和抗静电火花性能。结果表明,包覆处理可显著降低锆粉粒子的静电火花感度,50%发火能从5.13 m J提高至24.91 m J,并且保留了锆粉的高密度特性及良好的燃烧性能。研究成果为促进锆粉在高密度推进剂中的应用提供了技术支持。Zirconium metal prepared as powder is of interest as an energetic material due to its good combustion performance, and high density, which affords the opportunity to use zirconium powders as fuel in solid propellants. Unfortunately, the application of current zirconium powders is limited due to its high e- lectrostatic discharge sensitivity, making the zirconium powders more pyrophoric and less amenable to functionalization. Glycidyl azide polymer （GAP） , a kind of energetic binder as coating material, is selected to improve the security, and coated on the surface of zirconium powder directly to obtain Zr/GAP composite particles with reduced electrostatic discharge sensitivity. The measured results show that 50% firing energy （E50） of Zr/GAP is increased from 5.13 mJ to 24.91 mJ, meanwhile the good combustion performance and high density of Zr powder are also reserved. This work provides technology support for its application in high density propellant.

关 键 词：兵器科学与技术 锆粉 聚叠氮缩水甘油醚 静电火花感度 包覆 表征 热行为 

分 类 号：TJ04[兵器科学与技术—兵器发射理论与技术]