Title:
POLYIMIDE COMPOSITE NANOFIBER MEMBRANE HAVING SANDWICH STRUCTURE AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/015705
Kind Code:
A1
Abstract:
A polyimide composite nanofiber membrane having a sandwich structure and a preparation method therefor, which belong to the field of polymer dielectric materials. The polyimide composite nanofiber membrane having a sandwich structure of the present invention comprises a three layer structure, which, in order, is a polyimide nanofiber membrane layer, a polyvinylidene fluoride-polytetrafluoroethylene nanofiber membrane layer, and a polyimide nanofiber membrane layer. By means of adjustment of a material structure while simultaneously introducing a fluoropolymer and a porous structure, the dielectric constant and the dielectric dissipation factor of the polyimide nanofiber membrane are thereby greatly lowered.
Inventors:
CHENG SI (CN)
YU JIACHENG (CN)
YU JIACHENG (CN)
Application Number:
PCT/CN2021/122787
Publication Date:
February 16, 2023
Filing Date:
October 09, 2021
Export Citation:
Assignee:
UNIV SOOCHOW (CN)
International Classes:
D04H1/728; D04H1/4318; D04H1/4374
Attorney, Agent or Firm:
CENTRAL SOUTH WELL INTELLECTUAL PROPERTY OFFICE (CN)
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