含能材料2025，Vol.33Issue(6)：617-624,8.DOI:10.11943/CJEM2025028
固体推进剂固化体积收缩率及固化动力学的模拟研究
Simulation Study on Curing Shrinkage and Curing Kinetics of Solid Propellants
摘要
Abstract
A testing device for measuring the curing shrinkage rate of solid propellants was developed in this study.In addition,the online monitoring test of curing shrinkage of HTPB/IPDI propellant was carried out.The relationship between curing shrink-age and time during the curing process of solid propellant was obtained.By constructing the relationship between curing shrink-age,curing degree and curing kinetics,the curing degree change law and curing kinetics model of solid propellant during curing process were obtained.The results show that the curing shrinkage of solid propellants changes in a three-stage S-type.The maxi-mum curing shrinkage is about 0.108%,and the maximum curing reaction rate is 7.809×10-6.During the isothermal curing pro-cess,the curing reaction rate curve of HTPB/IPDI propellant shows a bell-shaped curve,so the thermal curing of solid propellant has autocatalytic characteristics.The pre-exponential factor A0 of the self-catalytic kinetics model for HTPB/IPDI propellant is 379.087 s-1.The reaction orders m and n are 0.711 and 1.501.The results provide a new method to test the shrinkage of propel-lant and clarify the curing reaction characteristics of composite solid propellants.关键词
固体推进剂/固化体积收缩率/固化度/固化动力学Key words
solid propellant/curing shrinkage/curing degree/curing kinetics分类
军事科技引用本文复制引用
周涛,杜燕桃,谢旭源,钟山伟,俞育洋,刘向阳,周东谟..固体推进剂固化体积收缩率及固化动力学的模拟研究[J].含能材料,2025,33(6):617-624,8.基金项目
山西省基金青年项目(202103021223187) Shanxi Foundation Youth Project(202103021223187) （202103021223187）
