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采用质损率、FTIR、DSC、动态热力学(DMA)及力学性能等作为评价指标,选择了一种耐高温复合材料的环氧树脂体系,以该树脂体系为基体制备了用于模拟空间环境的复合材料真空附舱,通过测试其常温及高温状态下的结构稳定性、漏气率和出气率等指标进行了应用评估。结果表明:该真空附舱在150℃高真空环境下结构稳定,高温性能达到国际领先水平,透波性能优于已报道的同类产品,可满足空间环境使用。
A kind of epoxy resin system with high temperature resistant composite material was selected by using mass loss rate, FTIR, DSC, DMA and mechanical properties as evaluation indexes. The resin system was used as matrix to prepare the model for simulation of space environment Composite vacuum attached to the module, through the test of its normal temperature and high temperature structural stability, leakage rate and outgassing and other indicators were evaluated. The results show that the vacuum capsule has stable structure and high temperature performance under the high vacuum environment of 150 ℃. Its performance of penetrating wave is better than that of similar products already reported, which can meet the requirement of space environment.