Supporting body and application thereof
The invention belongs to the technical field of membrane materials. The invention discloses a supporting body which is used for preparing a polyimide film and comprises a supporting layer and a release layer, the release layer is arranged on at least one side of the supporting layer, and the release...
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Main Authors | , , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
03.03.2023
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Subjects | |
Online Access | Get full text |
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Summary: | The invention belongs to the technical field of membrane materials. The invention discloses a supporting body which is used for preparing a polyimide film and comprises a supporting layer and a release layer, the release layer is arranged on at least one side of the supporting layer, and the release layer comprises polyimide; the thermal expansion coefficient difference value between the release layer and the supporting layer is 0-8 ppm/K; the peel strength between the polyimide film and the release layer is smaller than that between the release layer and the supporting layer. The invention also discloses an application of the support body, the support body is used for preparing a polyimide film, and the preparation method comprises the following steps: coating the polyimide precursor composition on one side of the release layer of the support body to form a film, carrying out imidization treatment to obtain the polyimide film, and separating the polyimide film from the support body to respectively obtain the |
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Bibliography: | Application Number: CN202211338929 |