| 热氧老化对丁羟基复合固体推进剂交联度的影响 |
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| 引用本文： | 周建平,李爱丽.热氧老化对丁羟基复合固体推进剂交联度的影响[J].宇航学报,1992,3(3):77-85. |
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| 作者姓名： | 周建平 李爱丽 |
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| 作者单位： | 国防科技大学航天技术系 湖南长沙
(周建平)，国防科技大学航天技术系 湖南长沙(李爱丽) |
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| 摘 要： |
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| 关 键 词： | 化学老化 固体推进剂 交联度 |
THE INFL UENCE OF TERMAL AGING ON THE CROSSLINK DENSITY OF HTPB PROPELLANTS |
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| Zhou Jianping Li Aili.THE INFL UENCE OF TERMAL AGING ON THE CROSSLINK DENSITY OF HTPB PROPELLANTS[J].Journal of Astronautics,1992,3(3):77-85. |
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| Authors: | Zhou Jianping Li Aili |
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| Institution: | National University of Defense Technology |
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| Abstract: | The influence of thermal ageing on the crosslink density, relative number of crosslinking bonds (RNB) and percent gel are studied by high temperature accelerated ageing tests. The crosslink density is measured by swelling-compressing method and is calculated by the formula derived from the three phase sphere model which is used in the mechanics of composite materials. The relative number of crosslink bonds and percent gel are measured by swelling-weighting method. The experimental results show that the general trends of these three parameters with time are similar. The relaxation modulus of the material can be taken as a linear function of cross linking density. |
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| Keywords: | Chemical aging Solid propellant Crosslink densitys Constitutive law of malerals |
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