AP/RDX/HMX对GAP推进剂药浆流变性能的影响  

Effect of oxidizers on rheological behavior for GAP based propellant

作　　者：尹必文[1] 苏冬 鲁国林[1] 李洋[1] 吴京汉[1] YIN Biwen;SU Dong;LU Guolin;LI Yang;WU Jinghan(Science and Technology on Aerospace Chemical Power Laboratory,Hubei Institute of Aerospace Chemotechnology,Xiangyang 441003,China)

机构地区：[1]航天化学动力技术重点实验室,湖北航天化学技术研究所,襄阳441003

出　　处：《固体火箭技术》2020年第5期566-572,共7页Journal of Solid Rocket Technology

摘　　要：利用高级扩展流变仪(ARES),研究了氧化剂AP、RDX、HMX对GAP高能微烟推进剂药浆流变性能的影响。结果表明,在硝酸酯增塑GAP粘合剂体系中加入AP颗粒,推进剂药浆在大剪切作用下的稳态粘度、触变环面积以及小剪切作用下的动态储能模量以及损耗模量均大幅增大,药浆流变性能差,但药浆粘度增长缓慢,可用于浇注的适用期较长;在硝酸酯增塑GAP粘合剂体系中加入RDX或HMX,推进剂药浆在大剪切作用下的稳态粘度、触变环面积以及小剪切作用下的动态储能模量以及损耗模量均较小,药浆初期流动性相对较好,但药浆粘度增长较快,适用期较短。在HMX/NE/GAP体系中加入1%的AP,可使药浆粘度快速增长阶段滞后,达到延长药浆适用期的作用。Effect of oxidizers,containing AP,RDX,HMX,on slurry rheological behavior for minimum smoke and high-energy GAP composite propellant was investigated by the aid of advanced expansion rheometer(ARES).The results show that the steady viscosity and thixotropic ring area under large shear force of propellant slurry,and dynamic storage modulus and loss modulus under small shear force increase significantly,when particles in the GAP bingder plasticized by nitrate is AP.The rheological properties of slurry are poor,but the viscosity of slurry increases slowly,so it can be used for casting for a long time.When RDX or HMX is added into the nitrate plasticized gap binder system,the steady viscosity and thixotropic ring area under large shear force of propellant slurry,and dynamic storage modulus and loss modulus under small shear force are small,and the initial fluidity of propellant slurry is relatively good.However,the viscosity of slurry increased rapidly and its application period is short.The growth rate of viscosity slow down,when 1%AP is added in the suspension of HMX/NE/GAP,leading to a long pot life of slurry.

关 键 词：氧化剂 GAP推进剂 工艺性能 适用期 

分 类 号：V512[航空宇航科学与技术—航空宇航推进理论与工程]