癸二酸二异辛酯中残留醇对IPDI/HTPB推进剂力学性能的影响  

Influence of residual alcohol in diisooctyl sebacate on mechanical performance of IPDI/HTPB propellant

作　　者：王旭波[1] 沈兆宏[1] 孙庆锋[1] 张丽[1] 

机构地区：[1]上海航天技术研究院第八〇六所,浙江湖州313000

出　　处：《化学推进剂与高分子材料》2015年第5期28-31,共4页Chemical Propellants & Polymeric Materials

基　　金：上海市自然科学基金(编号15ZR1421000)

摘　　要：用气相色谱、红外光谱、化学分析等方法分析了癸二酸二异辛酯（DOS）的理化性能,并在异佛尔酮二异氰酸酯/端羟基聚丁二烯（IPDI/HTPB）推进剂中进行了不同批次DOS样品的应用试验比较。结果表明：同等条件下,残留醇含量较高的DOS制备的推进剂抗拉强度显著低于残留醇含量较低的,表明DOS中残留醇含量是影响HTPB推进剂力学性能的主要因素。残留醇含量可用DOS的羟值来表征,在DOS质量分数为3.0%的HTPB推进剂中,羟基含量每增加1×10–5 mol/g,固化参数需相应提高0.04~0.05。The physico-chemical performance of diisooctyl sebacate（DOS） was analyzed by using the methods of gas chromatography, infrared spectrum, chemical analysis and so on, and the application tests for different batches of DOS samples in the isophorone diisocyanate/hydroxy-terminated polybutadiene（IPDI/HTPB） propellants were compared. The results show that the tensile strength of the propellant prepared by using DOS with high residual alcohol content is significantly lower than that with low residual alcohol content under the same conditions, which shows that the residual alcohol content in DOS is the key factor affecting mechanical performance of HTPB-based propellants. The residual alcohol content can be characterized by the hydroxyl value of DOS. In the HTPB-based propellant with DOS mass fraction of 3.0%, the curing parameter needs to correspondingly increase by 0.04~0.05 when the hydroxyl group content increases per 1×10–5mol/g.

关 键 词：癸二酸二异辛酯 HTPB推进剂 残留醇 羟值 

分 类 号：TQ225.24[化学工程—有机化工] V512[航空宇航科学与技术—航空宇航推进理论与工程]