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发明授权
CN107856383B 一种耐电晕聚酰亚胺复合薄膜及其制备方法 有权 转让

一种耐电晕聚酰亚胺复合薄膜及其制备方法
摘要：
一种耐电晕聚酰亚胺复合薄膜，包括热固性聚酰亚胺层与热塑性聚酰亚胺胶层，所述热塑性聚酰亚胺胶层覆盖所述热固性聚酰亚胺层的至少一面，所述热固性聚酰亚胺层与热塑性聚酰亚胺胶层均含有无机填料。本发明还相应提供一了种耐电晕聚酰亚胺复合薄膜的制备方法。本发明中使用热塑性聚酰亚胺胶层替代传统的氟胶层，可以减小膜层厚度，同时还可保证较好的耐电晕性能，提高复合薄膜的击穿电压，增加耐电晕时间。
摘要（英）：

The invention provides a corona-resistant polyimide composite film which comprises a thermosetting polyimide layer and a thermoplastic polyimide adhesive layer, wherein the thermoplastic polyimide adhesive layer covers at least one side of the thermosetting polyimide layer, and each of the thermosetting polyimide layer and the thermoplastic polyimide adhesive layer contains inorganic filler. The invention also correspondingly provides a preparation method of the corona-resistant polyimide composite film. By using the thermoplastic polyimide adhesive layer for replacing a traditional fluorine adhesive layer, the thickness of a film layer can be reduced, better corona resistance can also be ensured, the breakdown voltage of the composite film can be increased, and the corona-resistant time can be prolonged.

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