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超低温用碳纤维增强树脂基复合材料的性能研究
王晓蕾1,2, 王芳3, 刘千立1,2, 王钧4, 田杰1,2
1.上海复合材料科技有限公司, 上海 201112;2.上海航天树脂基复合材料工程技术研究中心, 上海 201112;3.上海航天技术研究院, 上海 201111;4.武汉理工大学, 武汉 430070
摘要:
根据低温液氧贮箱的缠绕工艺与特殊使用环境要求,分别针对3种自制的环氧树脂体系进行系统的工艺特性与低温抗裂纹性能研究。在此基础上以T700纤维复合材料为研究对象,详细考察其在超低温和高低温循环条件下的力学性能稳定性,并对其液氧相容性进行测试。最终以小型碳纤维复合材料筒体进行综合性能验证。研究结果表明,SFC-3环氧树脂具有较好的缠绕工艺特性,且在超低温和高低温交变条件下具有优异的抗裂纹特性。T700/SFC-3环氧复合材料分别经过高低温交变和超低温处理后,拉伸性能保留率在92%以上,且该复合材料具有良好的液氧相容性。T700/SFC-3环氧树脂复合材料筒体具有极好的耐高低温稳定性和气密性。
关键词:  碳纤维  复合材料  液氧贮箱  超低温
DOI:10.12044/j.issn.1007-2330.2018.05.007
分类号:TB332
基金项目:
Performance of Ultra-Low Temperature Carbon Fiber Reinforced Resin Based Composites
WANG Xiaolei1,2, WANG Fang3, LIU Qianli1,2, WANG Jun4, TIAN Jie1,2
1.Shanghai Composite Materials Technology Co. Ltd, Shanghai 201112;2.Shanghai Engineering Research Center of Aerospace resin based composite, Shanghai 201112;3.Shanghai Institute of Aerospace Technology, Shanghai 201111;4.Wuhan University of Technology, Wuhan 430070
Abstract:
According to the requirements of winding technology and special use environment of low temperature liquid oxygen tank, the technological characteristics of three kinds of self-made epoxy resin and the property of low temperature crack resistance were studied. Then, the mechanical properties of T700 carbon fiber reinforced composites were investigated under ultra-low temperature and high-low temperature cycling treatments. Finally, a small carbon fiber reinforced composite cylinder was used for the comprehensive performance test. The results showed that SFC-3 epoxy resin had better winding technology and excellent crack resistance property under ultra-low temperature and high-low temperature cycling treatments. After the aforementioned treatments, the tensile performance retention rates of T700/SFC-3 epoxy composites were above 92% respectively, and the composite material had good liquid oxygen compatibility. T700/SFC-3 epoxy resin composite cylinder had excellent high and low temperature stabilities and gas tightness.
Key words:  Carbon fiber  Composite materials  Liquid oxygen tank  Ultra-low temperature