Polyurethane cross-linked reduced graphene oxide composite conductive film and preparation method and application thereof

A technology of graphene composite and conductive film, which is applied in the direction of equipment for manufacturing conductive/semiconductive layers, cable/conductor manufacturing, and conductive layers on insulating carriers. , Low electrical conductivity and other issues, to achieve high use value, good electrical conductivity, and meet the needs of electrical conductivity
CN111613367AActive Publication Date: 2020-09-01NAT UNIV OF DEFENSE TECH
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Patent Information

Authority / Receiving Office
CN ¡ China
Current Assignee / Owner
NAT UNIV OF DEFENSE TECH
Publication Date
2020-09-01

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Abstract

The invention discloses a polyurethane cross-linked reduced graphene oxide composite conductive film and a preparation method and application thereof, the film is formed by cross-linking polyurethaneand reduced graphene oxide, and the mass fraction of polyurethane is less than or equal to 20%. The preparation method comprises the following steps: preparing a waterborne polyurethane aqueous phasesolution and a graphene oxide aqueous phase solution into a mixed solution, smearing the mixed solution on a substrate to prepare a polyurethane / graphene oxide composite film, performing heating to generate a polyurethane cross-linked graphene oxide composite film, and impregnating the polyurethane cross-linked graphene oxide composite film in a reducing agent to prepare the film. The composite conductive film provided by the invention has the advantages of the light weight, high conductivity, good corrosion resistance, ultrahigh tensile strength and toughness and the like, is a novel conductive film material, can be widely used for preparing flexible electronic devices, and has very high use value and very good application prospect. The preparation method is simple, feasible, low in cost,convenient, quick, simple, easy to operate and suitable for large-area use of special-shaped parts.
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Description

technical field

[0001] The invention belongs to the field of preparation of emerging materials, and relates to a composite conductive film and its preparation method and application, in particular to a polyurethane cross-linked reduced graphene oxide composite conductive film and its preparation method and application. Background technique

[0002] Due to the applicability of flexible electronic devices such as self-electronic devices, aerospace, artificial intelligence, and robotic arms, conductive films with super strength and high toughness have attracted widespread attention in recent years. And studies have shown that the preparation of conductive films with light weight, super strength, and high toughness usually needs to meet three conditions: ultra-high breaking strength, high elongation at break, and low density.

[0003] At present, common composite conductive films are mainly metal films or conductive polymer films. Although metal films have ultra-high strength an...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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