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Three-dimensional structure composite material and preparation method and application thereof

A composite material, three-dimensional structure technology, applied in metal material coating process, cable/conductor manufacturing, liquid chemical plating, etc., to achieve the effect of large stretchability and good cycle stability

Inactive Publication Date: 2019-05-14
SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still great challenges in how to prepare high-performance stretchable flexible conductors with high stretchability while maintaining conductive stability under large strain deformation.

Method used

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  • Three-dimensional structure composite material and preparation method and application thereof
  • Three-dimensional structure composite material and preparation method and application thereof
  • Three-dimensional structure composite material and preparation method and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0082] The applicant declares that the present invention illustrates the detailed structure and process of the present invention through the above-mentioned embodiments, but the present invention is not limited to the above-mentioned detailed structure and process, that is, it does not mean that the present invention must rely on the above-mentioned detailed structure and process to be implemented. Those skilled in the art should understand that any improvement of the present invention, the equivalent replacement of each raw material of the product of the present invention, the addition of auxiliary components, the selection of specific methods, etc., all fall within the scope of protection and disclosure of the present invention. Example 1 Preparation of three-dimensional structure Au-Ni composite material flexible conductor

[0083] (1) After repeatedly cleaning the polyurethane sponge layer with deionized water and absolute ethanol, put it in an oven to dry, place it in a 3g...

Embodiment 2

[0087] Example 2 Preparation of three-dimensional structure Au-Ni composite material flexible conductor

[0088] (1) After repeatedly cleaning the polyurethane sponge layer with deionized water and absolute ethanol, put it into an oven for drying, place it in a solution of 5g / L graphene oxide and soak it for 5h, and then use 80°C hydroiodic acid to The polyurethane sponge impregnated with graphene oxide was reduced in a water bath at 90°C for 5 minutes, and washed. After repeated soaking and reduction for 5 times, it was washed with deionized water at least once, and then the graphene sponge was dried in an oven to obtain a sponge with good electrical conductivity. Sexual graphene sponge;

[0089] (2) The graphene sponge with good electrical conductivity is passed through a process containing 20ppm PdSO 4 and 13mol / L H 2 SO 4 After soaking in the activation solution of the solution, put the solution containing 25g / L NiSO 4 ·6H 2 O, 30g / L NaH 2 PO 2 (sodium hypophosphite...

Embodiment 3

[0092] Embodiment 3 prepares three-dimensional structure Ni material flexible conductor

[0093] (1) After repeatedly cleaning the polyurethane sponge layer with deionized water and absolute ethanol, put it into an oven for drying, place it in a solution of 5g / L graphene oxide and soak it for 5h, and then use 80°C hydroiodic acid to The polyurethane sponge impregnated with graphene oxide was reduced in a water bath at 90°C for 5 minutes, and washed. After repeated soaking and reduction for 5 times, it was washed with deionized water at least once, and then the graphene sponge was dried in an oven to obtain a sponge with good electrical conductivity. Sexual graphene sponge;

[0094] (2) The graphene sponge with good electrical conductivity is passed through a process containing 20ppm PdSO 4 and 13mol / L H 2 SO 4 After soaking in the activation solution of the solution, put the solution containing 25g / L NiSO 4 ·6H 2 O, 30g / L NaH 2 PO 2 (sodium hypophosphite) and 10g / LNa 3...

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Abstract

The invention provides a three-dimensional structure composite material and a preparation method and an application thereof. The disclosed three-dimensional structure composite material is prepared bythe following steps: using polyurethane sponge as a substrate, coating the surface and the interior of the polyurethane sponge by graphene, and successively coating the graphene by a nickel layer anda gold layer through a chemical plating method, finally packaging through polydimethylsiloxane. A flexible conductor of the three-dimensional structure composite material has good stretchability (maximum stretchable strain reaches 30%), and is capable of keeping electric conduction stability under different deformations (three deformations of stretching, bending and twisting). The flexible conductor of the three-dimensional structure composite material is capable of solving problems of the flexible conductor that stretching strain is not high, stability under the different deformations is nothigh, and long-term using stability is not good, and greatly improving electrical conductivity.

Description

technical field [0001] The invention relates to the field of three-dimensional structure composite materials, in particular to a three-dimensional structure composite material flexible conductor and a preparation method thereof. Background technique [0002] In recent years, with the rapid development of flexible smart wearable electronic devices, flexible conductive materials as their important supporting materials have also become a research hotspot. Stretchable flexible conductors with good electrical conductivity and stability under large strains have been widely used in stretchable antennas, stretchable transistors, flexible supercapacitors, electronic skins and touch screens in recent years, and flexible conductors will be used in the future The development of smart devices will also play a very important role. [0003] Therefore, in order to prepare high-performance stretchable flexible conductors, people have conducted extensive research on its preparation methods. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/40C08J9/36H01B5/14H01B13/00C23C18/32C23C18/42C08L75/04C08L83/04
CPCC08J9/36C08J9/40C08L75/04C08L83/04C23C18/32C23C18/42H01B5/14H01B13/00
Inventor 张国平韩飞苏星宇张愿孙蓉
Owner SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI