叙述了复合固体推进剂壳体粘结式装药侧面包覆层及其作用。总结了ＰＳ－１和ＰＳ－２两种壳体粘结式复合固体推进剂装药侧面包覆层ＢＫ－１和ＢＫ－２长期贮存试验情况。实验结果表明，在室内无控条件下，ＢＫ－１包覆层贮存８年，ＢＫ－２包覆层贮存６年，性能基本上稳定。对于装复合固体推进剂的钢壳体发动机必须研究防腐问题。

The current situation about mechanical properties ofsolid propellant at low temperature was introduced and the important point anddirecton in the field of this study were expected from the aspect ofmicroscopic mechanism, technical measures, constitutive models, failurecriterion and formulations,considering that low temperature and high strainrate tests, molecular dynamic simulation and numerical method could be used toanalyze mechanical properties of solid propellant under low temperature complexdynamic environment.