Preparation method of capacitive stress sensing intelligent fabric

A stress-sensing, capacitive technology, applied in the field of textile fabrics, can solve the problems of complex manufacturing process, poor wearing comfort and complex structure of sensor devices

Inactive Publication Date: 2018-05-29
DONGHUAJINGYUE SUZHOU TEXTILE TECH RES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above problems, the purpose of the present invention is to provide a preparation method of capacitive stress sensing smart fabrics, whic

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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  • Preparation method of capacitive stress sensing intelligent fabric
  • Preparation method of capacitive stress sensing intelligent fabric
  • Preparation method of capacitive stress sensing intelligent fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A method for preparing a yarn-like sensor integrated with a dielectric material and an electrode and a woven fabric sensor array. This embodiment uses polydimethylsiloxane (PDMS), styrene-butadiene-styrene (SBS ) and other insulating elastomers or a mixture of several. The modulus of elasticity of the elastomer can be controlled by controlling the ratio of the prepolymer to its crosslinking agent. The range of modulus can vary from 2MPa to 40MPa, and the corresponding sensitivity range is 0.01 to 4KPa. -1 , the lower the modulus, the higher the sensitivity. When the sensitivity is higher than 0.5KPa -1 When it is used, it can be used to monitor the physiological state of the human body such as heartbeat and pulse; sensors with lower sensitivity can be used for touch sensing of smart clothing and smart homes.

[0026] Conductive yarns are prepared with one or more mixtures of metal, carbon or conductive polymers as the conductive main body. The direct preparation metho...

Embodiment 2

[0032] A method for preparing a yarn or fibrous sensor and a knitted fabric sensor array based on a conductive polymer-based dielectric material integrated with an electrode. The preparation method of the yarn or fibrous sensor and the fabric sensor array with the conductive polymer as the electrode, using a combination of polyurethane (PU) and polyhydrogenated styrene-polyethylene butene-polystyrene block copolymer (SEBS) One or more mixtures are used as insulating elastomers, and the integrated yarn or fiber sensor is prepared by melt extrusion and direct coating method and applied in knitted fabrics.

[0033] The conductive yarn uses PEDOT:PSS (poly(3,4-ethylenedioxythiophene): polystyrene sulfonic acid) and its ductile conductive enhancer (dodecylbenzenesulfonic acid, sodium dodecylbenzenesulfonate ) or polyaniline (PAni) as raw material to prepare conductive fibers or yarns by wet spinning. Taking polyaniline as an example, dissolve polyaniline with a mass fraction of 20...

Embodiment 3

[0037] A capacitive sensor based on conductive yarn and its application in three-dimensional fabric reinforcement composite materials. Three-dimensional fabrics are often used as reinforcements for engineering composite materials due to their varied three-dimensional structures and convenient processing methods. The embodiment utilizes conductive yarn and insulating resin to compound, and provides a capacitive sensor that can monitor the deformation of engineering composite materials in real time.

[0038]Preparation of conductive yarn: The conductive yarn adopts the same method as in Example 1 and Example 2, and one or more mixtures of metal, carbon or conductive polymers are used as the conductive main body to prepare the yarn, and the direct preparation method is used. To enhance the strength of the conductive yarn, the conductive yarn is also prepared by doping and coating conductive metal and carbon nanomaterials on high-strength and high-modulus yarns such as nylon and ar...

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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Abstract

The invention provides a preparation method of a capacitive stress sensing intelligent fabric. Conductive yarns serve as electrodes of a capacitive sensor and are obtained by means of direct preparation, coating, coping and the like, insulating elastomers serves as dielectric materials coating the conductive yarns, the insulated conductive yarns alternately penetrate common yarns by the aid of interwoven overlapped structures among fabric yarns, a fabric sensing array is formed by common manufacturing technology, and the preparation method can be widely applied to stress monitoring and the like of intelligent garments, intelligent homes, touch screens, electronic skins and three-dimensional fabric composite materials.

Description

technical field [0001] The invention relates to the technical field of textile fabrics, in particular to a method for preparing smart fabrics. Background technique [0002] As modern people have higher and higher requirements for the quality of life, all aspects of life are required to be more portable, smarter and more comfortable. Therefore, the concepts of "Internet of Things", "Smart Home" and "Smart Clothing" have emerged as the times require. The basis for realizing these concepts is to make the sensing components flexible. The stress sensor converts the mechanical signal into an electrical signal, and then connects with the signal processor to obtain intuitive real-time stress data. The sensing of micro-stress can be used for the detection of biological signals, such as heartbeat, pulse, and finger touch. Applied to smart clothing, smart home touch devices, medical biosignal monitoring and artificial skin of robots, etc.; the sensing of greater stress can be applied ...

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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IPC IPC(8): D06M15/643D06M11/83D06M11/74D06M15/564D06M15/233D06B3/04D06B15/00D06M101/34D06M101/36D06M101/30
CPCD06B3/04D06B15/00D06M11/74D06M11/83D06M15/233D06M15/564D06M15/643D06M2101/36D06M2101/30D06M2101/34D10B2331/021D10B2331/02D03D15/47D04B1/14D10B2101/12D10B2101/20D10B2401/16D03D1/0088D03D11/00D03D25/005D10B2401/18D10B2403/02431D06M2101/40D06M15/227D01F1/09D01F6/94D01D5/06D02G3/441
Inventor 郑贤宏郑圆圆文琦付文丽许庆丽毛宁陈文翀覃小红邱夷平陈霞张坤
Owner DONGHUAJINGYUE SUZHOU TEXTILE TECH RES CO LTD
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