表面处理对聚酰亚胺柔性复合材料粘结性能的影响
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北京卫星制造厂有限公司,北京 100094

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TB3

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Effect of Surface Modification on the Bonding Performance of Flexible PI Composites
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Beijing Spacecrafts,Beijing 100094

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    摘要:

    使用聚酰亚胺(PI)膜和PI纤维编织布制备深空探测用柔性织物复合材料,研究表面处理对PI膜和PI纤维编织布之间粘结性能的影响。采用自制表面处理剂分别对PI膜和PI纤维编织布的表面进行处理,再经硅橡胶胶黏剂粘结制备柔性复合材料。使用T剥离强度试验方法测试柔性织物复合材料的层间胶接性能,并分析复合材料剥离面的形貌状态。结果显示,PI膜和PI织物的表面处理可以显著提高柔性织物复合材料的T剥离强度。其中,PI膜和PI织物未经表面处理时,柔性织物复合材料的T剥离强度为8.9 N/cm。对PI膜进行表面处理,或者对PI膜和PI织物均进行表面处理的情况下,柔性织物复合材料的T剥离强度增加至11.7 N/cm和12.8 N/cm,分别提高了31.5%和43.8%。这表明对PI膜及PI织物进行合理的表面处理,可以显著提高柔性织物复合材料的胶接性能。

    Abstract:

    In this paper, flexible composite for deep space exploration was prepared using PI film and PI woven cloth, the effect of surface modification of PI film and PI woven on the bonding properties of the flexible composites was evaluated. Before and after surface modification,PI film and PI woven cloth were adhered by silicone rubber adhesive to prepare flexible composites. The bonding properties of flexible composites with different surface treatments were studied and the morphology of the peeling surface were analyzed.The results showed that the T-peel strength of the flexible PI film/woven composites was significantly increased after the surface modification. The T-peel strength of the composite,which consisted of unmodified PI film/woven, was 8.9 N/cm. In case of that the PI film was independently modified, the PI film and PI woven were simultaneously modified, the T-peel strength increased to 11.7 N/cm and 12.8 N/cm, which was enhanced by 31.5% and 43.8%, respectively. This research has indicated that the surface treatment of PI film and PI woven cloth could significantly improve the adhesive properties of the flexible composite.

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田桂芝,武海生,刘佳,陈维强,赵海伟.表面处理对聚酰亚胺柔性复合材料粘结性能的影响[J].宇航材料工艺,2021,51(5):119-122.

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  • 收稿日期:2021-05-30
  • 最后修改日期:2021-09-22
  • 录用日期:2021-07-14
  • 在线发布日期: 2021-10-26
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