A composite electrical film and its preparation method

A technology of composite conductive film and conductive material, which is applied in the direction of cable/conductor manufacturing, conductive layer on insulating carrier, circuit, etc., can solve the problems of reducing the stability of conductive film, poor bonding of metal layer, poor conductivity, etc. Achieve the effect of low cost, high tensile strength and high conductivity

Active Publication Date: 2022-08-09
浙江长宇新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the composite conductive film in the current prior art has disadvantages such as poor electrical conductivity, low tensile strength, poor adhesion of the metal layer, and reduced stability of the conductive film.

Method used

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  • A composite electrical film and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A high-conductivity composite conductive film, comprising an insulating layer, a first reinforcing layer and a second reinforcing layer arranged on both sides of the insulating layer, a first metal layer and a second reinforcing layer arranged on one side of the first reinforcing layer and the second reinforcing layer respectively The second metal layer, the through holes provided through the insulating layer, the first reinforcement layer, the second reinforcement layer, the first metal layer and the second metal layer, and the conductive material filled in the through holes, the The insulating layer is a composite film of polyethylene terephthalate and 25wt% carbon fiber, and the first reinforcing layer and the second reinforcing layer are Al 2 O 3 layer, the first metal layer and the second metal are Al metal layers.

[0037] The preparation method of the composite conductive film comprises the following steps:

[0038] 1. Preparation of organic / inorganic composite...

Embodiment 2

[0046] The preparation method is the same as that of Example 1, except that the pore density of S3 in Example 1 is 5 / cm 2 .

[0047] The prepared flexible porous conductive film is bent 180° with a bending radius of 1 cm, which can be bent more than 300 times, and the conductivity is about 7.4×10 4 s / m, tensile strength is about 94MPa.

Embodiment 3

[0049] The preparation method is the same as that of Example 1, except that the pore density of S3 in Example 1 is 25 / cm 2 .

[0050] The prepared flexible porous conductive film is bent 180° with a bending radius of 1 cm, which can be bent more than 300 times, and the conductivity is about 8.1×10 4 s / m, tensile strength is about 78MPa.

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Abstract

The invention discloses a composite conductive film and a preparation method thereof. The composite conductive film includes an insulating layer, and a first reinforcing layer and a second reinforcing layer arranged on both sides of the insulating layer are respectively arranged on the first reinforcing layer and the second reinforcing layer. The first metal layer and the second metal layer on one side of the layer, the through holes provided through the insulating layer, the first reinforcement layer, the second reinforcement layer, the first metal layer and the second metal layer, filled in the The conductive material in the through hole, the obtained conductive film has the characteristics of good flexibility, high tensile strength and high conductivity. It can be bent 180° with a bending radius of 1cm, which can be bent more than 300 times, and the conductivity is not less than 7×10 4 s / m, tensile strength not less than 75MPa.

Description

technical field [0001] The present application relates to the technical field of thin films, and in particular, to a composite conductive film and a method for preparing the composite conductive film. Background technique [0002] With the continuous development of social informatization and the continuous improvement of people's living standards, electronic products appear more and more widely in people's lives, which also affects the energy density, conductivity and safety of electronic devices and their energy storage devices. Sex makes higher demands. [0003] At present, the mainstream solution to the above problems is to use a polymer-based conductive film to replace the traditional conductive material, which has achieved remarkable results. However, the composite conductive films in the current prior art have disadvantages such as poor electrical conductivity, low tensile strength, poor adhesion of metal layers, and reduced stability of the conductive films. Therefo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B5/14H01B13/00
CPCH01B5/14H01B13/00Y02E60/10
Inventor 吴明忠朱正录黄云辉伽龙曾祥平焦鑫鹏
Owner 浙江长宇新材料股份有限公司
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