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Flexible polymer conductor, and preparation method and applications thereof

A flexible polymer and conductor technology, applied in the direction of additive processing, etc., can solve the problems of difficult to achieve large-area production and complex preparation technology of flexible conductors, and achieve excellent flexibility, excellent electrical conductivity, and excellent electrical conductivity.

Active Publication Date: 2016-01-13
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The preparation techniques of many flexible conductor preparation methods reported so far are relatively complex, and it is difficult to achieve large-area production.

Method used

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  • Flexible polymer conductor, and preparation method and applications thereof
  • Flexible polymer conductor, and preparation method and applications thereof
  • Flexible polymer conductor, and preparation method and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Dissolving 0.1 part of stearic acid in excess water, then adding 0.01 part of single-walled carbon nanotubes, and ultrasonically dispersing under stirring conditions, to obtain a dispersion liquid dispersed with nano conductive materials;

[0044]Add 100 parts of polyurethane thermoplastic elastomer powder to the above-mentioned dispersion liquid with single-walled carbon nanotubes, and stir rapidly so that the single-walled carbon nanotubes can be fully and uniformly coated on the surface of polyurethane thermoplastic elastomer particles; finally mix The solution is suction filtered, and the obtained powder is dried and screened to obtain polyurethane thermoplastic elastomer powder coated with single-walled carbon nanotubes;

[0045] Spread the polyurethane thermoplastic elastomer powder coated with single-walled carbon nanotubes on the workbench of the selective laser sintering equipment, set the temperature at 70°C, the thickness of the single layer is 0.05mm, the las...

Embodiment 2

[0048] Dissolving 0.2 parts of sodium lauryl alcohol polyoxyethylene ether sulfate in excess water, then adding 2 parts of single-walled carbon nanotubes, and ultrasonically dispersing under stirring conditions to obtain a dispersion liquid dispersed with nano conductive materials;

[0049] Add 100 parts of polyurethane thermoplastic elastomer powder to the above-mentioned dispersion liquid with single-walled carbon nanotubes, and stir rapidly so that the single-walled carbon nanotubes can be fully and uniformly coated on the surface of polyurethane thermoplastic elastomer particles; finally mix The solution is suction filtered, and the obtained powder is dried and screened to obtain polyurethane thermoplastic elastomer powder coated with single-walled carbon nanotubes;

[0050] Spread the polyurethane thermoplastic elastomer powder coated with single-walled carbon nanotubes on the workbench of the selective laser sintering equipment, set the temperature at 70°C, the thickness ...

Embodiment 3

[0053] Dissolving 0.3 parts of ammonium lauryl sulfate in excess water, then adding 4 parts of single-walled carbon nanotubes, and ultrasonically dispersing under stirring conditions to obtain a dispersion liquid dispersed with nano-conductive materials;

[0054] Add 100 parts of polyurethane thermoplastic elastomer powder to the above-mentioned dispersion liquid with single-walled carbon nanotubes, and stir rapidly so that the single-walled carbon nanotubes can be fully and uniformly coated on the surface of polyurethane thermoplastic elastomer particles; finally mix The solution is suction filtered, and the obtained powder is dried and screened to obtain polyurethane thermoplastic elastomer powder coated with single-walled carbon nanotubes;

[0055] Spread the polyurethane thermoplastic elastomer powder coated with single-walled carbon nanotubes on the workbench of the selective laser sintering equipment, set the temperature at 70°C, the thickness of the single layer is 0.05m...

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Abstract

The invention discloses a flexible polymer conductor, and a preparation method and applications thereof. According to the preparation method, 0.01 to 20 parts of a nano conductive filler is uniformly dispersed in an aqueous solution or an ethanol solution containing 0 to 1 part of a surfactant via ultrasonic dispersion; 100 parts of a flexible polymer powder is added, full stirring is carried out so as to coat the surfaces of the flexible polymer particles with the nano conductive filler uniformly; the flexible polymer powder coated with the nano conductive filler is obtained via filtering, drying, and screening, and is dispersed onto a selective laser sintering device workbench for 3D printing so as to obtain the flexible polymer conductor. The flexible polymer conductor possesses excellent mechanical properties and electrical conductivity; electrical conductivity can be as high as 5.06S / m; cyclic tension can be carried out for one thousand times under deformation of 50%, and electrical conductivity is maintained to be essentially constant; the flexible polymer conductor can be applied to the fields such as electronic skin, flexible electrode, flexible implantable device, wearable devices, flexible display screen, artificial blood vessel, or dielectric elastomer drivers.

Description

technical field [0001] The invention relates to a flexible polymer conductor and its preparation method and application, belonging to the field of polymer material processing. Background technique [0002] Flexible conductive materials are widely used in smart wearable devices, human implants, flexible circuits, flexible displays, dielectric Elastomer drives and other fields. At present, the types of flexible conductors can be divided into three types: 1. Polymer elastomers with electrical conductivity. It is grid-like and has a certain extension ability in the biaxial direction; 3. Add conductive materials to the flexible polymer material to form a conductive network, or coat it on its surface to form a conductive layer. The third form of flexible conductors has been widely used. [0003] 3D printing technology is a new type of processing and forming technology that has emerged in recent years. It is based on a computer three-dimensional design model, which is cut into c...

Claims

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Application Information

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IPC IPC(8): C08L75/04C08L83/04C08L77/00C08L23/12C08L27/06C08L53/02C08K7/24C08K3/04C08K3/08B29C67/24B33Y10/00B33Y70/00
Inventor 夏和生李志超傅代华费国霞程振刚
Owner SICHUAN UNIV
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