Polyimide composite nanofiber membrane with sandwich structure and preparation method thereof
A technology of composite nanofibers and nanofiber membranes, applied in fiber treatment, nanotechnology, nanotechnology, etc., can solve problems such as high water absorption rate and decreased dielectric constant, so as to improve deterioration, reduce dielectric constant, and excellent durability hot effect
Active Publication Date: 2021-11-05
SUZHOU UNIV
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The invention discloses a polyimide composite nanofiber membrane with a sandwich structure and a preparation method thereof, and belongs to the field of polymer dielectric materials. The polyimide composite nanofiber membrane with the sandwich structure comprises three layers of structures, namely a polyimide nanofiber membrane layer, a polyvinylidene fluoride-polytetrafluoroethylene nanofiber membrane layer and a polyimide nanofiber membrane layer in sequence. According to the polyimide composite nanofiber membrane with the sandwich structure and the preparation method thereof provided by the invention, the material structure is adjusted, and a fluorine-containing polymer and a porous structure are introduced, so that the dielectric constant and the dielectric loss of the polyimide nanofiber membrane are greatly reduced.
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