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Elastic nanofiber conductive ink and preparing method and application thereof

A nanofiber, conductive ink technology, applied in the application, fiber type, fiber processing and other directions, can solve the problems of poor mechanical properties, poor flexibility and elasticity of conductive ink, etc., to improve electrical conductivity and good mechanical properties. Effect

Active Publication Date: 2017-05-31
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The conductive ink can be used to print labels and RFID antennas. The flexibility of this conductive ink is not good, and its mechanical properties cannot be well applied to the field of electronic skin.

Method used

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  • Elastic nanofiber conductive ink and preparing method and application thereof
  • Elastic nanofiber conductive ink and preparing method and application thereof
  • Elastic nanofiber conductive ink and preparing method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] The preparation method of elastic nanofiber conductive ink:

[0046] 1) Preparation of nanofibers:

[0047] Weigh polyolefin thermoplastic elastomer and cellulose acetate, the weight ratio of polyolefin thermoplastic elastomer and cellulose acetate is 1:9, after mixing evenly, use screw extruder to extrude and stretch into elastic fiber, use acetone Soak the elastic fibers to remove the cellulose acetate in the elastic fibers to obtain nanofibers; the diameter of the nanofibers of gained is 500nm; the temperature of each section of the screw extruder is as shown in table 1:

[0048] Table 1 The temperature of each section of the twin-screw extruder

[0049]

[0050] 2) Preparation of nanofiber suspension:

[0051]Add ether to the nanofibers and shear them with a high-shear disperser, control the content of the nanofibers to 10g / L, the shearing speed to 5000r / min, and the shearing time to 120s, to make a nanofiber suspension;

[0052] 3) Preparation of elastic nano...

Embodiment 2

[0056] The preparation method of elastic nanofiber conductive ink:

[0057] 1) Preparation of nanofibers:

[0058] Weigh styrene-based thermoplastic elastomer and cellulose acetate, the weight ratio of styrene-based thermoplastic elastomer to cellulose acetate is 1:8, mix evenly, extrude and stretch into elastic fibers with a screw extruder, Soak the elastic fibers with acetone to remove the cellulose acetate in the elastic fibers to obtain nanofibers; the diameter of the nanofibers is 800nm; the temperature of each section of the screw extruder is as shown in Table 2:

[0059] Table 2 The temperature of each section of the twin-screw extruder

[0060]

[0061] 2) Preparation of nanofiber suspension:

[0062] Add ethanol to the nanofibers and shear them with a high-shear disperser, control the content of the nanofibers to 5g / L, the shearing speed is 3000r / min, and the shearing time is 100s, that is, a suspension of nanofibers is made;

[0063] 3) Preparation of elastic n...

Embodiment 3

[0067] The preparation method of elastic nanofiber conductive ink:

[0068] 1) Preparation of nanofibers:

[0069] Weigh polyurethane thermoplastic elastomer and cellulose acetate, the weight ratio of polyurethane thermoplastic elastomer and cellulose acetate is 1:10, after mixing evenly, use screw extruder to extrude and stretch into elastic fiber, soak elastic fiber with acetone fiber to remove the cellulose acetate in the elastic fiber to obtain nanofibers; the diameter of the nanofibers is 500nm; the temperature of each section of the screw extruder is as shown in table 3:

[0070] Table 3 The temperature of each section of the twin-screw extruder

[0071]

[0072] 2) Preparation of nanofiber suspension:

[0073] Add n-hexane to the nanofibers and shear them with a high-shear disperser, control the content of the nanofibers to 25g / L, the shearing speed to 10000r / min, and the shearing time to 100s to make a nanofiber suspension;

[0074] 3) Preparation of elastic nano...

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Abstract

The invention discloses elastic nanofiber conductive ink. The elastic nanofiber conductive ink comprises a conductive substance, a base material and solvent, the base material is uniformly suspended in the solvent, the surface of the base material is uniformly coated with the conductive substance, the conductive substance is one of polypyrrole, polyaniline and polythiophene, the base material is nanofiber, and the solvent is organic volatile solvent. The preparing method includes the steps that 1), after thermoplastic elastomer and cellulose acetate are mixed uniformly, the mixture is stretched through a screw extruder to obtain elastic fiber, and cellulose acetate is removed with acetone to obtain nanofiber; 2), the organic volatile solvent is added into the nanofiber, and nanofiber suspension liquid is prepared through shearing and dispersing processing; 3), conductive macromolecular monomers and an oxidation doping agent are added into the nanofiber suspension liquid, and polymerization liquid is obtained through in-situ polymerization reaction and cleaned to obtain the elastic nanofiber conductive ink. The preparing method is simple, high in efficiency, suitable for mass production, and the elastic nanofiber conductive ink is high in flexibility and conductivity.

Description

technical field [0001] The invention relates to the field of conductive ink, in particular to an elastic nanofiber conductive ink and its preparation method and application. Background technique [0002] The traditional conductive ink is composed of a conductive phase, a binder phase, and an organic carrier. The method used to disperse the conductive phase in the organic carrier is the physical blending and doping method. This dispersion method cannot uniformly disperse the conductive phase in the organic carrier. In the organic carrier, the electrical properties of the conductive ink are unstable after film formation; and the unevenly dispersed conductive phase forms stress concentration points in the organic carrier, which reduces the mechanical properties of the conductive ink after film formation; secondly, the traditional conductive phase is For active metal nanoparticles such as copper and nickel, the conductive phase is easily oxidized, which affects the conductivity ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/52D06M15/37D01F8/02D01F8/06D01F8/10D01F8/12D01F8/16C08G73/06D06M101/08D06M101/20D06M101/18D06M101/38D06M101/34
CPCC08G73/0611C09D11/52D01F8/02D01F8/06D01F8/10D01F8/12D01F8/16D06M15/37D06M2101/08D06M2101/18D06M2101/20D06M2101/34D06M2101/38
Inventor 王栋吴永智郭启浩王跃丹赵青华梅涛牛应买
Owner WUHAN TEXTILE UNIV