CHINESE JOURNAL OF ENERGETIC MATERIALS
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粒铸EMCDB推进剂固化研究
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李笑江(1967-),男,博士研究生,高级工程师,从事固体推进剂专业。

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Study on the Curing of EMCDB Propellant Shaped by Granule-casting Process
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    摘要:

    研究了高分子粘结剂在增塑剂中溶解性能、固化剂的反应活性、燃烧催化剂对交联固化反应的催化活性等因素对粒铸EMCDB推进剂固化过程的影响,分析了粒铸EMCDB推进剂的固化机理,找到了产生浇铸粒子难以塑化的“泡米花”现象的原因。实验结果表明,高分子粘结剂在NG中的溶解性能越好越有利于浇铸粒子的充分塑溶,要制得固化质量好的粒铸EMCDB推进剂应当选用反应活性较小的异氰酸酯作固化剂,选用对交联固化反应催化加速作用较小的铅、铜盐作燃烧催化剂。

    Abstract:

    Elastomeric modified cast double base (EMCDB) propellant was prepared by granule-casting process. The effects of various factors on the curing of EMCDB propellant,such as the resolvability of polymer binder in NG,the reactive activity of curing agent,and the sensitivity of curing reaction to combustion catalyst,were thoroughly studied. By the analysis of the curing mechanism of EMCDB propellant,the reasons for difficult plasticization and resolution of polymer binders in casting granule were found. The results show that the better the resolvability is,the more completely the polymer binder is plasticized and resolved. The low reactive activity of curing agent is advantageous to form perfect cross-linking network. Only those combustion catalysts,which are weakly sensitive to the curing reaction,can be used in EMCDB propellant.

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李笑江,刘芳莉,樊学忠,等.粒铸EMCDB推进剂固化研究[J].含能材料, 2003, 11(4):197-200.
LI Xiao-jiang, LIU Fang-li, FAN Xue-zhong, et al. Study on the Curing of EMCDB Propellant Shaped by Granule-casting Process[J]. Chinese Journal of Energetic Materials, 2003, 11(4):197-200.

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  • 收稿日期: 2002-10-08
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  • 在线发布日期: 2011-11-03
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