Flexible conductive fiber membrane material and preparation method thereof

Abstract

The invention discloses a flexible conductive fiber membrane material and a preparation method thereof. The preparation method comprises steps as follows: a fiber base material, a conductive nano material and a surfactant are dissolved in an organic solvent, and a spinning solution is prepared; a nano fiber membrane is prepared from the spinning solution with an electrospinning process; a conductive polymer is polymerized on the nano fiber membrane in situ, and the flexible conductive fiber membrane material is prepared, wherein the nano fiber membrane has a structure of mutually connected primary main fiber and secondary cobweb fiber, and the conductive polymer is polymerized in situ and formed on the primary main fiber and the secondary cobweb fiber. In the presence of the cobweb fiber,the specific surface area of fiber in samples is increased, so that during in-situ polymerization reaction, more binding sites can be provided for attachment of the conductive polymer, and the conductive performance of the conductive fiber membrane material is substantially improved.

Description

technical field [0001] The invention belongs to the technical field of conductive materials, and in particular relates to a flexible conductive fiber membrane material and a preparation method thereof. Background technique [0002] Traditionally, metal or metal oxides are often used as conductors to realize the conductive interconnection of electronic components. For example, indium tin oxide (ITO) thin film has good conductivity and high transmittance, so it is widely used in solar cells, displays and solid-state lighting etc. parts. However, indium is a rare metal with low global reserves, and the preparation process of ITO is complicated, the cost is high, and the defects such as cracks under low strain cannot meet the production requirements of modern flexible electronic devices. [0003] In recent years, inorganic conductive materials and their doped composites have attracted more and more researchers' attention in the field of flexible electronic devices. Liu Tianxi'...

AI Technical Summary

Problems solved by technology

For example, Qu Lijun’s research group at Qingdao University polymerized polyaniline in situ on polyurethane nanofiber membranes obtained by electrospinning to form conductive composite membranes. Too much polyaniline can not further improve its conductivity, see the literature: "Qingdao University Master's Degree Thesis "Preparation of Polyaniline / Polyurethane Electrospun Nanofiber Membrane and Assembly of Flexible Stress-Strain Sensor", Wang Yujiao"

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