摘要
通过研究四种具有结构差异的环氧树脂与氰酸酯的共聚物,分别对其进行液氧冲击实验和热分析测试,发现两种测试方法得到的结果之间存在较好的一致性。在深入探讨液氧冲击敏感性实验机理的基础上,认为热分析可以作为判定聚合物材料与液氧相容性的有效表征手段。
Four types of epoxy resins with different chemical structures were co-cured with cyanate ester. The compatibility of the co-cured compounds with liquid oxygen was ranked according to the liquid oxygen sensitivity impact test results. Then some thermal oxidation and combustion properties such as oxidation mass gains, oxidation decomposition mass loss and flash points of the cured compounds were obtained by thermal analysis. The results showed the thermal oxidation and combustion properties of polymers were in good consistence with their compatibility with liquid oxygen. Based on the discussion of the mechanism of liquid oxygen impact test, it was confirmed that the chemical mechanism of polymers~ compatibility with liquid oxygen lies in polymers＇ oxidation and combustion. As a result, thermal analysis can be applied to indicating polymers＇ compatibility with liquid oxygen along with the liquid oxygen impact test.
出处
《材料工程》
EI
CAS
CSCD
北大核心
2005年第11期38-42,49,共6页
Journal of Materials Engineering
基金
国家高技术"863-702"项目(2002AA724040)
关键词
液氧
相容性
冲击实验
热分析
环氧树脂
氰酸酯
liquid oxygen
compatibility
impact test
thermal analysis
epoxy
cyanate ester
