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    武湛君

    • 教授     博士生导师   硕士生导师
    • 性别:男
    • 毕业院校:哈尔滨工业大学
    • 学位:博士
    • 所在单位:材料科学与工程学院
    • 学科:材料学. 材料无损检测与评价
    • 办公地点:材料馆320
    • 联系方式:wuzhj@dlut.edu.cn
    • 电子邮箱:wuzhj@dlut.edu.cn

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    Liquid oxygen compatible epoxy resin: modification and characterization

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    论文类型:期刊论文

    发表时间:2015-01-01

    发表刊物:RSC ADVANCES

    收录刊物:SCIE、EI、Scopus

    卷号:5

    期号:15

    页面范围:11325-11333

    ISSN号:2046-2069

    摘要:The bisphenol A epoxy resin was modified by the polycondensation between tetrabromobisphenol A and bisphenol A epoxy resin. After curing using 4,4'-diaminodiphenyl methane (DDM) and 4,4'-diaminodiphenyl sulfone (DDS), the liquid oxygen compatibility of bisphenol A epoxy resin and modified bisphenol A epoxy resin was measured by the mechanical impact test (ASTM D2512-95). The results suggested that the modified bisphenol A epoxy resin curing using 4,4'-diamino diphenylmethane (DDM) was compatible with liquid oxygen. The thermogravimetric analysis (TGA) revealed that the modified bisphenol A epoxy resin has lower temperatures of the initial degradation and the maximum mass loss rate compared with unmodified. The X-ray photoelectron spectroscopy (XPS) measurement results indicated that the C-C/H groups were oxidized to C-O-C/H and/or C=O groups during the impact process. The mechanical properties of all samples were measured at room temperature (RT) and nitrogen temperature (77 K). The flame-retardant modification of epoxy resin may be an effective way to obtain the compatible epoxy resin material with liquid oxygen.