| 引用本文: | 王戈,李效东,曾竞成,等.聚合物材料与液氧相容性的研究.[J].国防科技大学学报,2005,27(4):18-23.[点击复制] |
| WANG Ge,LI Xiaodong,ZENG Jingcheng,et al.The Study of the Compatibility of Polymeric Materials and Liquid Oxygen[J].Journal of National University of Defense Technology,2005,27(4):18-23[点击复制] |
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| 聚合物材料与液氧相容性的研究 |
| 王戈, 李效东, 曾竞成, 李公义, 唐云 |
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(国防科技大学 航天与材料工程学院，湖南 长沙 410073)
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| 摘要: |
| 为研究聚合物材料与液氧的相容性，针对四种结构不同的环氧树脂与氰酸酯的共聚固化物，以液氧冲击敏感性试验作为其与液氧相容性的判定方法，通过热分析测试手段测定各固化物的恒温氧化热增重、热分解失重和闪点等热氧性能，并与其液氧冲击敏感性进行分析对照，证实环氧/氰酸酯类改性树脂与液氧不相容的程度与其常规热氧化反应的难易程度是一致的，提高其抗氧化性可以改善其与液氧的相容性。由此加深了对于聚合物与液氧相容性本质的认识，为进一步研究与液氧相容的聚合物材料指明了方向。作为常规分析手段的热分析，在聚合物与液氧相容性的科学表征中可发挥重要作用。 |
| 关键词: 液氧 相容性 环氧树脂 氰酸酯 冲击敏感性试验 热分析 |
| DOI： |
| 投稿日期：2005-01-25 |
| 基金项目:国家863高技术资助项目(2002AA724040) |
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| The Study of the Compatibility of Polymeric Materials and Liquid Oxygen |
| WANG Ge, LI Xiaodong, ZENG Jingcheng, LI Gongyi, TANG Yun |
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(College of Aerospace and Materials Engineering, National Univ. of Defense Technology, Changsha 410073, China)
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| Abstract: |
| To study the compatibility of polymers and liquid oxygen, four types of epoxy resins with different chemical structures were selected, and then were copolymerized with cyanate ester. Thermal analysis was conducted on the cured compounds for oxidation weight gains analysis, oxidation decomposition weight losses analysis, flash points, etc. Then the compatibility of the cured compounds with liquid oxygen was contrasted with liquid oxygen impact sensitivity. The oxidation and combustion properties of the cured compounds are consistent with their compatibility with liquid oxygen. Polymers with better anti-oxidation show better compatibility with liquid oxygen. This conclusion helps us see deeper into polymers' compatibility with liquid oxygen, instructs us to select or design polymers compatible with liquid oxygen. Furthermore, besides the liquid oxygen impact test, thermal analysis can play an important role in charactering polymers' compatibility with liquid oxygen. |
| Keywords: liquid oxygen compatibility epoxy cyanate ester impact sensitivity test thermal analysis |
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