A kind of preparation method of graphene functional conductive fabric

A conductive fabric and graphene technology, applied in inks, textiles, papermaking, coatings, etc., can solve the problems of graphene oxide color paste falling off, uneven impregnation by dipping, affecting electron transmission, etc. Excellent performance and good air permeability

Active Publication Date: 2021-12-14
LANZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the printing and dyeing method avoids the influence of adhesives, printing paste, etc. on the conductivity of graphene, the reduction of graphene oxide or its derivatives is performed by the impregnation method. On the one hand, the impregnation method is not uniform, which will lead to incomplete reduction; On the other hand, after repeated dipping, the graphene oxide color paste printed and dyed on the surface of the fabric will fall off, which will affect the transmission of electrons, so the surface resistance of the prepared graphene conductive fabric is as high as 0.42-17.32kΩ·cm -1

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • A kind of preparation method of graphene functional conductive fabric
  • A kind of preparation method of graphene functional conductive fabric
  • A kind of preparation method of graphene functional conductive fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1 A kind of preparation method of graphene functional conductive fabric, comprises the following steps:

[0032] (1) Immerse the base fabric in a sodium hydroxide solution with a mass concentration of 1% and stir for 2 hours to wash away the finishing agent, treatment agent and impurities on the surface of the fabric. After taking it out, wash it with deionized water for 3 to 5 times to obtain a humidity of 30 % fabric.

[0033] ⑵Preparation of graphene conductive ink: set the conductivity to 1.50×10 4 S / m graphene is mixed with deionized water to prepare a 120 mg / mL graphene slurry, then add a mixed leveling agent, diethylene glycol-isopropanol mixture, and stir at 300r / min for 4h to obtain a viscosity is 160 mpa·s, and the conductivity is 1.26×10 4 S / m graphene conductive ink.

[0034] Among them: the mass percentages of graphene, mixed leveling agent, and deionized water are 45%, 5%, and 50%.

[0035] Diethylene glycol-isopropanol mixture refers to a s...

Embodiment 2

[0043] Embodiment 2 A kind of preparation method of graphene functional conductive fabric, comprises the following steps:

[0044] (1) Immerse the base fabric in a sodium hydroxide solution with a mass concentration of 1% and stir for 2 hours to wash away the finishing agent, treatment agent and impurities on the surface of the fabric. After taking it out, wash it with deionized water for 3 to 5 times to obtain a humidity of 30 % fabric.

[0045] Among them: the base fabric refers to one of pure cotton, nylon, acrylic, polyester and their blended fibers.

[0046] ⑵Preparation of graphene conductive ink: set the conductivity to 1.50×10 4 S / m graphene is mixed with deionized water to prepare a 130mg / mL graphene slurry, then add the mixed leveling agent 2,3 butanediol-isopropanol mixture, stir at 300r / min for 4h, and obtain the viscosity is 120 mpa·s, and the conductivity is 1.28×10 4 S / m graphene conductive ink.

[0047] Among them: the mass percentages of graphene, mixed l...

Embodiment 3

[0056] Embodiment 3 A kind of preparation method of graphene functional conductive fabric, comprises the following steps:

[0057] (1) Immerse the base fabric in a sodium hydroxide solution with a mass concentration of 1% and stir for 2 hours to wash away the finishing agent, treatment agent and impurities on the surface of the fabric. After taking it out, wash it with deionized water for 3 to 5 times to obtain a humidity of 30 % fabric.

[0058] Among them: the base fabric refers to one of pure cotton, nylon, acrylic, polyester and their blended fibers.

[0059] ⑵Preparation of graphene conductive ink: set the conductivity to 1.50×10 4 S / m graphene is mixed with deionized water to prepare a 100mg / mL graphene slurry, then add the mixed leveling agent hexanediol-diethylene glycol mixture, stir at 300r / min for 4h, and obtain the viscosity is 180 mpa·s, and the conductivity is 1.03×10 4 S / m graphene conductive ink.

[0060] Among them: the mass percentages of graphene, mixed ...

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Abstract

The invention relates to a preparation method of a graphene functional conductive fabric, comprising the following steps: (1) dipping and washing a base fabric to obtain a fabric with a humidity of 30%; (2) preparing a graphene conductive ink: mixing graphene and deionized water to prepare 100~140mg / mL graphene slurry, then add mixed leveling agent and stir to make graphene conductive ink; (3) use printing method to print graphene conductive ink on the fabric, and continuously prepare graphene functional ink. (4) Preparation of liquid coatings: mixing and dispersing resin, thickener, defoamer, film-forming aids and deionized water to obtain liquid coatings; (5) Uniformly coating liquid coatings on graphene by doctor blade coating technology The surface of the functional conductive fabric is left to dry at room temperature to obtain a flexible graphene functional conductive fabric. The method of the invention is simple and low in cost, and the prepared graphene functional conductive fabric has excellent conductivity.

Description

technical field [0001] The invention relates to the field of preparation of flexible functional conductive materials, in particular to a preparation method of graphene functional conductive fabric. Background technique [0002] As a new type of functional textile, conductive fabric has broad application prospects in medical health, electromagnetic shielding, sensors, flexible electronic devices and other fields. Traditional conductive materials are mainly metals and metal oxides, but the material itself is poor in flexibility, so the scope of use is greatly limited, and it does not meet the development trend of conductive materials used in bendable and wearable fields. Graphene has gradually become an additive material for high-performance conductive fabrics due to its excellent electrical properties and flexibility. Compared with flexible substrates such as paper and plastic, fabrics have better flexibility, air permeability and wear resistance, and can perform mechanical ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/52C09D125/14C09D175/04C09D133/04C09D131/04C09D123/08D06M11/74D06M11/38
CPCC09D11/52C09D125/14C09D175/04C09D133/04C09D131/04C09D123/0853D06M11/74D06M11/38C08L75/04C08L33/04C08L23/0853
Inventor 拜永孝张玉金
Owner LANZHOU UNIVERSITY
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