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A kind of elastic conductive film material and preparation method thereof

A technology of elastic conductive and film materials, applied in the direction of cable/conductor manufacturing, conductive layer on insulating carrier, circuit, etc., can solve the problems of poor flexibility of conductive film, complicated preparation process, resistance to bending and compression, etc., and achieve electrical performance Stable, good conductivity, not easy to wear and leakage effect

Inactive Publication Date: 2017-09-19
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In recent years, with the development of thinner and lighter electronic devices and the demand for smart wearable conductive materials, traditional rigid electronic devices have become increasingly unable to meet the needs of the modern electronics industry, and conductive films are relatively thin in the market. more and more applications
However, the current conductive films are generally prepared on hard substrates such as glass and ceramics. The substrate itself has disadvantages such as brittleness, poor elasticity, and not easy to deform. Therefore, the prepared conductive film has poor flexibility and is not resistant to bending and compression. , poor wearable performance, and most of them use conductive fillers or coating coatings, the preparation process is relatively complicated, which greatly limits its application

Method used

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  • A kind of elastic conductive film material and preparation method thereof
  • A kind of elastic conductive film material and preparation method thereof
  • A kind of elastic conductive film material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A preparation method of an ultra-thin elastic conductive film material, the specific steps are:

[0036] The first step: select the elastic film 1 (PDMS film) as the elastic attachment matrix, apply a certain tension to both ends of it, stretch it to 40% of the elongation at break of the elastic film and fix it, and coat the surface of the PDMS film with a A layer of liquid elastic adhesive (using PDMS adhesive) to form an adhesive layer with a thickness of about 0.2mm;

[0037] The PDMS membrane is a square PDMS membrane with a size of 30×30cm 2 , the thickness is 0.5mm. The PDMS film was obtained by coating film method using PDMS resin (Dow Corning DC184).

[0038] The PDMS adhesive adopts SYLGARD184 of Dow Corning Company, which is obtained by mixing the basic components (PDMS liquid, viscosity 5.2 Pa-sec) and curing agent (viscosity 3.5 Pa-sec) in a weight ratio of 10:1.

[0039] The second step: using silver glue to bond the copper wire electrode and the carbon ...

Embodiment 2

[0046] A preparation method of an elastic conductive film, the specific steps are:

[0047] The first step: select the elastic film 1 (PDMS film) as the elastic attachment matrix, apply a certain tension to both ends of it, stretch it to 50% of the elongation at break of the elastic film and fix it, and coat the surface of the PDMS film with a A layer of liquid elastic adhesive (using PDMS adhesive) to form an adhesive layer with a thickness of about 0.2mm;

[0048] The PDMS membrane is a square PDMS membrane with a size of 30×30cm 2 , the thickness is 0.5mm. The PDMS film was obtained by coating film method using PDMS resin (Dow Corning DC184).

[0049] The PDMS adhesive adopts SYLGARD184 of Dow Corning Company, which is obtained by mixing the basic components (PDMS liquid, viscosity 5.2 Pa-sec) and curing agent (viscosity 3.5 Pa-sec) in a weight ratio of 10:1.

[0050] The second step: using silver glue to bond the copper wire electrode and the carbon nanotube film to obt...

Embodiment 3

[0058] A preparation method of an elastic conductive bracelet, the specific steps are:

[0059] The first step: select the elastic film 1 (PDMS film) as the elastic attachment matrix, apply a certain tension to both ends of it, stretch it to 50% of the elongation at break of the elastic film and fix it, and coat the surface of the PDMS film with a A layer of liquid elastic adhesive (using PDMS adhesive) to form an adhesive layer with a thickness of about 0.2mm;

[0060] The PDMS membrane is a rectangular PDMS membrane with a size of 1.5*16cm 2 , the thickness is 0.4mm. The PDMS film was obtained by coating film method using PDMS resin (Dow Corning DC184).

[0061] The PDMS adhesive adopts SYLGARD184 of Dow Corning Company, which is obtained by mixing the basic components (PDMS liquid, viscosity 5.2 Pa-sec) and curing agent (viscosity 3.5 Pa-sec) in a weight ratio of 10:1.

[0062] The second step: using silver glue to bond the copper wire electrode and the carbon nanotube f...

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Abstract

The invention provides an elastic conducting film material and a preparation method thereof. The preparation method of the elastic conducting film material comprises steps as follows: an elastic film is selected as an elastic attaching base body, certain pull force is applied to two ends of the elastic film, the elastic film is stretched to certain elongation and then fixed, the surface of the elastic film is coated with a liquid elastomeric adhesive, and an adhesive layer is formed; a flexible nano conducting film is pressed on the adhesive layer; the upper side of the flexible nano conducting film is coated with resin with a protection function, so that the adhesive and the resin are cured; the pull force applied to the elastic attaching base body is released, the flexible nano conducting film is driven to retract, and the elastic conducting film material can be prepared. The prepared conducting film material has the characteristics of certain elasticity, good flexibility, stable electrical property and the like; a carbon nanotube film is protected in a resin coating manner, wearing and electric leakage are not easily caused, and the electric safety and the durability of the material are improved.

Description

technical field [0001] The invention relates to the technical field of conductive materials, more specifically, to the field of elastic conductive composite films. Background technique [0002] In recent years, with the development of light and thin electronic devices and the demand for smart wearable conductive materials, traditional rigid electronic devices have become increasingly unable to meet the needs of the modern electronics industry, and conductive films are relatively thin in the market. The application is more and more extensive. However, the current conductive films are generally prepared on hard substrates such as glass and ceramics. The substrate itself has disadvantages such as brittleness, poor elasticity, and not easy to deform. Therefore, the prepared conductive film has poor flexibility and is not resistant to bending and compression. , the wearable performance is poor, and most of them use conductive fillers or coating coatings, and the preparation proc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B5/14H01B1/04H01B13/00
CPCH01B1/04H01B5/14H01B13/00
Inventor 许福军高扬
Owner DONGHUA UNIV
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