关键词: 端羟基聚丁二稀推进剂;加速老化试验;动态弹性模量;推进剂防老剂

Abstract: In the accelerated ageing test of high solid content HTPB propellants,the elastic modulus measured by dynamic viscoelastometer has almost the same varying regulation as the uniaxial tensile stressThe study of three different formulations shows that the method of studying the ageing of propellants and selecting the ageing resistants by use of viscoelastometer is simple and convenient and the data are reliable

Key words: Hydroxy terminated polybutadiene propellant;Accelerated ageing test;Dynamic modulus of elasticity;Propellant antioxidant