对CCF300/BA9916复合材料正交板进行吸湿-脱湿实验,测定其在于态、湿态和脱湿条件下的静拉伸性能,研究了湿热环境下该材料的吸湿和脱湿行为.结果表明:在70℃水浸条件下CCF300/BA9916复合材料的吸湿过程与脱湿过程均符合Fick第二定律,试验件约在35 d后达到有效吸湿平衡状态,有效吸湿平衡率为0.85％;吸湿导致复合材料试验件的静拉伸性能下降了10.3％,而脱湿处理可使静拉伸性能得到一定程度的恢复.
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