Microfluidic assisted 90%loading CL-20 spherical particles:Enhancing self-sustaining combustion performance  

作　　者：Ling-feng Yang Xian-rui Shi Chun-zhi Li Bo Wu Chong-hua Pei 

机构地区：[1]State Key Laboratory of Environment-friendly Energy Materials,Southwest University of Science and Technology,Mianyang,621010,PR China [2]Xi'an Modern Chemistry Research Institute,Xi'an,Shaanxi,710065,PR China [3]Luzhou North Chemical Industries Co.,Ltd.,Luzhou,646003,PR China

出　　处：《Defence Technology（防务技术）》2023年第4期176-184,共9页Defence Technology

基　　金：supported by the Project of State Key Laboratory of Environment-friendly Energy Materials,Southwest University of Science and Technology(No.20fksy18)。

摘　　要：The performance of the chemical fuel determines the altitude,range and longevity of spacecraft in air and space exploration.Promising alternatives(e.g.,hypergolic ionic liquids or high-energy composites)with high-energy density,heat of formation and fast initial rate are considered as potential chemical fuels.As the high-energy density material,hexanitrohexaazaisowurtzitane(CL-20)often serves as secondary explosive with poor self-propagating combustion behaviors.Herein,90%loading CL-20 microspheres with uniform particle sizes are precisely prepared by microfluid method,which exhibit unique hierarchical structure.The morphology,thermal behaviors,as well as combustion performance were further investigated.The results demonstrated that as-prepared spherical particles exhibit prominent thermal compatibility,and the enhanced self-sustaining combustion performance.This work provides an efficient method achieving the uniform high-energy density particles with excellent self-sustaining combustion performance.

关 键 词：MICROFLUIDICS HEXANITROHEXAAZAISOWURTZITANE Spherical particles Thermal behavior Self-sustaining combustion 

分 类 号：V51[航空宇航科学与技术—航空宇航推进理论与工程]