卫星构件用M40J/ BA204 复合材料性能

针对卫星构件的不同需求,开发了一种芳香胺固化的环氧树脂BA204.研究了无溶剂及溶剂法成型的M40J/BA204复合材料力学、真空放气性能和管件在模拟温度交变条件下的性能变化情况.结果表明:两种方法制备的复合材料力学性能均能满足卫星构件要求,无溶剂法制备的复合材料力学性能优于溶剂法.采用无溶剂法制备的M40J/BA204复合材料其真空质损率为0.23％,可收集挥发性凝聚物为0.009％;复合材料管件经200次热循环冲击后力学性能变化不大,表明M40J/BA204复合材料具有良好的热稳定性.

Properties of M40J/ BA204 Epoxy Matrix CompositeApplied to Satellite Components

To meet the requirements of satellite components, the BA204 epoxy resin which can be cured by aromatic amine was studied. The mechanical properties of M40J/ BA204 composite which manufactured by winding without solvent and winding with solvent were studied. Vacuum outgassing of M40J/ BA204 composites were studied, and properties of M40J/ BA204 composite tube in simulated space environment where the temperature changed alternately were also studied. Results show that the composites prepared by the above two methods could both meet the requirements of satellite components. The mechanical properties of composites manufactured by winding without solvent were better than winding with solvent. The total mass loss(TML) of M40J/ BA204 composite which manufactured by winding without solvent is 0. 23% and the collected volatile condensed material( CVCM) is 0. 009%. The mechanical property of pipe composite is almost constant after 200 times of thermo-cycling, which indicates the M40J/ BA204 composite has good thermal stability.