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癸二酸二异辛酯中残留醇对IPDI/HTPB推进剂力学性能的影响

Chemical Propellants & Polymeric Materials(2015)

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Abstract
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1×10-5mol/g,固化参数需相应提高0.04~0.05.
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