太阳帆板驱动机构用KH-A 胶黏剂制备及性能
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北京控制工程研究所

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TQ437

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Preparation and Performance of KH-A Adhesives for Solar Array Drive Assembly
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    摘要:

    针对卫星太阳帆板驱动机构对恶劣环境下零件粘接的应用需求,研制开发了一种双组份环氧胶
    黏剂KH-A。KH-A 浇铸体的Tg 为143℃,KH-A 粘接45#钢时,其25℃时的拉剪强度为23. 0 MPa,125℃时达
    到20. 9 MPa。固化样片经1×108 rad γ-射线(60Co)辐照后,击穿强度由20. 1 升高到25. 2 kV/ mm。KH-A 浇铸
    体在真空下的总质量损失(TML)为0. 97%,可凝挥发物含量(CVCM)为0. 01%。KH-A 各项性能指标均满足
    产品设计要求。

    Abstract:

    A two-component epoxy adhesive KH-A has been developed,to satisfy the needs for parts adhesion of
    the solar array drive assembly(SADA) of satellite under the adverse space environment. The Tg of the cured KH-A is
    as high as 143℃. The lap shear strength for carbon steel joints bonded with KH-A adhesive is 23. 0 MPa at 25℃ and
    20. 9 MPa at 125℃. In addition,the cured epoxy exhibits good γ-ray radiation resistance. After a radiation dose of 1×
    108 rad in γ-ray environments,the electrical breakdown strength of cured KH-A is 25. 2 kV/ mm,which is even higher
    than that of the samples before radiation(20. 1 kV/ mm). At last,the cured KH-A possesses low outgassing properties
    in vacuum with the total mass loss(TML) value of 0. 97% and collected volatile condensable materials(CVCM) value
    of 0. 01%. Properties of adhesives KH-A can satisfy the application requirement of products.

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引用本文

孟宪刚.太阳帆板驱动机构用KH-A 胶黏剂制备及性能[J].宇航材料工艺,2015,45(1).

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  • 在线发布日期: 2016-11-28
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