Preparation method for conductive sensing textile based on graphene

A graphene and fabric technology, applied in the direction of chemical instruments and methods, cellulose plastic material layered products, layered products, etc., can solve the problems of not being easy to use multiple times, single sensor sensing elements, etc., and achieve low production cost, Wide application prospects and stable performance

Active Publication Date: 2018-05-18
宁国市龙晟柔性储能材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The sensing element of this sensor is relatively single, and it is not easy to use it multiple times.

Method used

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  • Preparation method for conductive sensing textile based on graphene
  • Preparation method for conductive sensing textile based on graphene

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Such as figure 1 with figure 2 As shown, 55D acrylic filaments are soaked in graphene conductive paste to prepare graphene conductive filaments, and the conductive properties of conductive filaments are improved by reducing the particle size of graphene, so that the specific resistance is less than 100Ω·cm; the conductive filaments Interwoven with other ordinary chemical fibers to form a fabric, the gap between the conductive fibers is about 0.2mm to form a base; also use a similar method to prepare 3D graphene conductive acrylic staple fibers, the specific resistance is less than 100Ω cm, and the conductive staple fibers are mixed with spandex To form a non-woven fabric, the proportion of conductive short fibers is 20%, and the thickness of the non-woven fabric is 2mm; the uppermost layer is a polyester cloth, forming a sandwich structure.

[0029] Under the action of external force, the resistance change value of the conductive fabric is in the range of 5kΩ-100kΩ, a...

Embodiment 2

[0031] Such as figure 1 with figure 2 As shown, the 55D nylon filament is soaked in the graphene conductive paste to prepare the graphene conductive filament, and the conductive performance of the conductive filament is improved by reducing the particle size of the graphene, so that the specific resistance is less than 50Ω·cm; the conductive filament Interwoven with other common chemical fibers to form a fabric, the gap between conductive fibers is about 0.2mm to form a base; also use a similar method to prepare 3D graphene conductive nylon staple fibers, the specific resistance is less than 80Ω cm, and the conductive staple fibers and spandex mixed weave To form a non-woven fabric, the proportion of conductive short fibers is 40%, and the thickness of the non-woven fabric is 1mm; the uppermost layer is polyester cloth, forming a sandwich structure.

[0032] Under the action of external force, the resistance change value of the conductive fabric is in the range of 2kΩ-20kΩ, ...

Embodiment 3

[0034] Such as figure 1 with figure 2 As shown, 20D polypropylene filaments are soaked in graphene conductive paste to prepare graphene conductive filaments. By reducing the particle size of graphene, the conductivity of conductive filaments is improved, so that the specific resistance is less than 300Ω·cm; the conductive filaments Interweave with other ordinary chemical fibers to form a fabric, and the gap between conductive fibers is about 0.1mm to form a base; also use a similar method to prepare 3D graphene conductive polypropylene staple fibers, the specific resistance is less than 500Ω·cm, and mix conductive staple fibers with spandex To form a non-woven fabric, the proportion of conductive short fibers is 20%, and the thickness of the non-woven fabric is 1mm; the uppermost layer is polyester cloth, forming a sandwich structure.

[0035] Under the action of external force, the resistance change value of the conductive fabric is in the range of 10kΩ-500kΩ, and the resis...

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Abstract

The invention discloses a preparation method for a conductive sensing textile based on graphene and relates to the technical field of flexible wearable electronic devices. The graphene conductive sensing textile disclosed by the invention is prepared by adopting a three-dimensional braiding and compounding technology; a base of the graphene conductive sensing textile is composed of a textile whichis obtained by mixing and braiding conductive yarns and common yarns; a dielectric substrate is composed of a common textile with good dielectric properties; and all the parts are combined through asimple compounding technology to form a whole body. Under the action of applied pressure, a sandwich structure of the textile is deformed, so that the working resistance of the textile is changed; a pressure deformation condition of the sandwich structure of the textile is reversely inferred through monitoring a current-voltage signal, so that a textile pressure-resistance sensing and monitoring function is realized; and a novel design thought is provided for a structural design of multifunctional textiles and intelligent textiles.

Description

Technical field: [0001] The invention relates to the technical field of flexible wearable electronic devices, in particular to a preparation method of a graphene-based conductive sensing fabric. Background technique: [0002] The traditional type of strain sensor is mainly resistance strain sensor, which can produce mechanical deformation under the action of external force, so that the resistance value changes accordingly. There are mainly two types of resistance strain gauges: metal (wire type, foil type and film type) and semiconductor. However, strain sensors based on semiconductor or metal materials have poor flexibility and limited detection sensitivity, which is difficult to meet the requirements of portable and wearable electronic devices. In recent years, researchers have devoted themselves to the development of wearable strain sensors, which have important applications in medical treatment, motion detection, and human-computer interaction because of their flexibili...

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): B32B27/02B32B27/12B32B27/36B32B27/40B32B27/32B32B27/34B32B23/02B32B25/02B32B23/10B32B25/10B32B3/08
CPCB32B3/08B32B5/02B32B23/10B32B25/10B32B27/12B32B27/32B32B27/34B32B27/36B32B27/40B32B2250/20B32B2262/0253B32B2262/0261B32B2262/0276B32B2262/0292B32B2262/04B32B2262/06B32B2262/08B32B2307/202B32B2307/204
Inventor 吴景霞王兵杰邓珏徐群
Owner 宁国市龙晟柔性储能材料科技有限公司
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