Multifunctional conductive yarn and preparation method thereof

A conductive yarn and multi-functional technology, applied in the field of multi-functional conductive yarn and its preparation, can solve the problems of poor scrub resistance, difficult to form conductive channels, difficult to improve the conductive properties of conductive fibers, etc. The effect of large contact area and improved bonding strength

Pending Publication Date: 2022-08-09
ANHUI HENGYI TEXTILE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Metal wire conductive fiber: the metal substrate with good conductivity is made into metal wire through repeated die drawing, and the metal wire is blended with fabric fiber to make composite fiber, and the conductivity of the metal wire is used to realize the conductive function. The textile performance of this type of conductive fiber is Poor, poor softness, uncomfortable to wear on fabrics
[0005] Doped conductive fiber: Add conductive particles to the spinning fiber compound, or form conductive carbon black in the fiber by low-temperature carbonization, so as to achieve the effect of conductivity. Because the uniformity of conductive particles in the fiber is difficult to control, it is difficult to Form a continuous conductive channel, making it difficult to improve the conductive performance of this type of conductive fiber
[0006] In-situ polymerization polymer conductive fiber: attach a conductive polymer material to the surface of the fiber, and form a conductive layer on the fiber surface through in-situ polymerization, so that the fiber has electrical conductivity. The bonding strength between the polymer material and the fiber in this type of fiber is low. , poor scrub resistance

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The present embodiment prepares a kind of modified graphene, and the specific implementation process is as follows:

[0032] Step A1: ultrasonically disperse 240g graphene oxide powder in 2L of DMF to form a uniform graphene oxide dispersion;

[0033] Step A2: Add 32 mL of 4-aminostyrene to the graphene oxide dispersion, add dropwise a 10% sodium hydroxide solution to adjust the pH to 9, reflux for 8 hours, filter with suction after the reaction, and wash the filter cake until it is washed The water is close to neutral, and finally suction filtration, and the filter cake is dried in a drying oven at 60 °C for 2 hours to obtain modified graphene.

Embodiment 2

[0035] The present embodiment prepares a kind of modified graphene, and the specific implementation process is as follows:

[0036] Step A1: ultrasonically disperse 300g graphene oxide powder in 2L of DMF to form a uniform graphene oxide dispersion;

[0037] Step A2: Add 40 mL of 4-aminostyrene to the graphene oxide dispersion, dropwise add 10% sodium hydroxide solution to adjust the pH to 9, reflux for 8 hours, filter with suction after the reaction, and wash the filter cake until it is washed The water is close to neutral, and finally suction filtration, and the filter cake is dried in a drying oven at 60 °C for 2 hours to obtain modified graphene.

Embodiment 3

[0039] The present embodiment prepares a kind of multifunctional conductive yarn, and the specific implementation process is as follows:

[0040] Step S1: Dissolve 1L of diethylenetriamine with 8L of deionized water, add acrylic fiber to the reaction kettle, then add the mixed solution to immerse the acrylic fiber, heat up to 95±5°C for 120 minutes, and take out the acrylic fiber with water and water. Alternately washed with water and ethanol once, then put the drained fibers into a drying box, set the drying temperature to 70 °C and dry for 2 hours to obtain activated acrylic fibers; the acrylic fibers are modified by diethylenetriamine, and the molecules of the acrylic fibers are The amino group is grafted on the side chain to activate the acrylic fiber and change its surface inertness;

[0041] Step S2: take 160 g of the modified graphene prepared in Example 1 and ultrasonically disperse it in 2 L of deionized water to make a dispersion, add the activated acrylic fibers int...

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PUM

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Abstract

The invention relates to a multifunctional conductive yarn and a preparation method thereof, and belongs to the technical field of conductive fabrics. According to the conductive yarn, acrylic fibers serve as basic fibers, the modified graphene layer is attached to the surface layer, the polyaniline layer is polymerized on the surface of the modified graphene layer, charges are rapidly guided out through modified graphene and then evenly released through polyaniline, and the conductive yarn has the advantages of being rapid in response and excellent in conductivity; the modified graphene used in the invention is wrinkle-shaped, has more binding sites with the activated acrylic fiber and has a larger contact area with polyaniline, so that the binding strength of the modified graphene with the activated acrylic fiber and polyaniline is improved; besides, a polyaniline layer is formed on the surface layer of the fiber by a two-step method, so that more hydrochloric acid is remained on the polyaniline layer, more protons are provided for polyaniline conduction, and the conductivity is improved.

Description

technical field [0001] The invention belongs to the technical field of conductive fabrics, in particular to a multifunctional conductive yarn and a preparation method thereof. Background technique [0002] Conductive fibers are widely used in antistatic clothing, dust-proof work clothes, and have broad markets in semiconductor industry, electronic precision industry, medicine, biological science and other fields; [0003] There are many preparation processes for conductive fibers and fabrics. The wire fibers that are widely used in the prior art mainly include the following categories: [0004] Metal wire conductive fiber: The metal substrate with good conductivity is drawn into metal wire by repeated die, and the metal wire is blended with the fabric fiber to make a composite fiber, and the conductivity of the metal wire is used to realize the conductive function. Poor softness and poor softness, uncomfortable when applied to wearing fabrics. [0005] Doped conductive fib...

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 Applications(China)
IPC IPC(8): D06M15/61D06M13/332D06M11/74D02G3/02D02G3/44D06M101/28
CPCD06M15/61D06M13/332D06M11/74D02G3/441D02G3/02D06M2101/28D06M2200/25D10B2321/10Y02P70/62
Inventor 李贺宋明起
Owner ANHUI HENGYI TEXTILE TECH CO LTD
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