不同温度条件下HTPB推进剂干燥恢复研究  

Research on Drying Recovery of HTPB Propellant at Different Temperatures

作　　者：张旭东[1] 董可海[1] 曲凯[1] 周红梅[1] 

机构地区：[1]海军航空工程学院,山东烟台264001

出　　处：《化学推进剂与高分子材料》2014年第2期90-93,97,共5页Chemical Propellants & Polymeric Materials

基　　金：总装备部武器装备预研基金项目(51328040104)

摘　　要：以在30℃、RH为100%条件下湿老化5 d的丁羟(HTPB)推进剂试样为研究对象,分别进行了在10、30、50℃3种温度下的干燥恢复试验,测试了干燥恢复过程中推进剂试样的失水率和力学性能。综合分析了试验数据,得到了不同温度下干燥时初始阶段推进剂试样的失水率、抗拉强度恢复速率,以及各力学性能参量恢复度>90%且伸长率比值<1.2的恢复时间。对抗拉强度测试中得到的断面照片进行了对比和分析,将样品30℃干燥恢复1、4、9 d后的单向拉伸曲线绘制在一张图上进行比较寻找规律,在对试验数据和试验现象分析总结的基础上探讨了HTPB推进剂干燥恢复过程中氢键的作用规律。The hydroxyl-terminated polybutadiene （HTPB） propellant samples suffered from 5 day wet ageing under 30℃ and 100% relative humidity were treated as the objects of study, their drying recovery tests were carried at 10, 30 and 50 ℃ respectively. The percent of lost water and mechanical properties of propellant samples were tested during the drying recovery. After comprehensively analyzing the test data, the percent of lost water and the recovery speed of tensile strength at the initial drying stage at different temperatures were obtained, the recovery time was also obtained when the recovery percent of each mechanical property is more than 90% and eb： em〈 1.2. The section photographs obtained during the tensile strength test were contrasted and analyzed. The stress-strain curves of the samples after drying recovery for 1, 4, 9 days at 30 ℃ were drawn in one figure to find the rule. Based on the analysis and summarization of test data and test phenomena, the action rule of hydrogen bond during the drying recovery of HTPB propellant was discussed.

关 键 词：HTPB推进剂 温度 力学性能 氢键 恢复机理 

分 类 号：V512.3[航空宇航科学与技术—航空宇航推进理论与工程]