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High-elasticity intelligent clothes based on liquid metal as well as preparation method and application of high-elasticity intelligent clothes

A liquid metal, high-elasticity technology, applied in applications, protective clothing, home appliances, etc., can solve the problems of conductive ink cracking, stretchable micro-nano silver flake conductive ink is expensive, not suitable for clothing, etc., to achieve excellent stretching performance effect

Pending Publication Date: 2020-05-12
THE NAT CENT FOR NANOSCI & TECH NCNST OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Clothes have certain elasticity, but the conductive inks sold on the market are not elastic and cannot meet the requirements of elasticity, and the stretching deformation of the clothes will cause the conductive ink to crack
However, the stretchable micro-nano silver sheet conductive ink reported in the literature is expensive, and is not suitable for large-area circuit printing on clothing.

Method used

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  • High-elasticity intelligent clothes based on liquid metal as well as preparation method and application of high-elasticity intelligent clothes
  • High-elasticity intelligent clothes based on liquid metal as well as preparation method and application of high-elasticity intelligent clothes
  • High-elasticity intelligent clothes based on liquid metal as well as preparation method and application of high-elasticity intelligent clothes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0099] This example is used to illustrate the preparation of liquid metal conductive ink.

[0100] Add 0.3g polyethylene oxide and 5uL fluorocarbon surfactant into 10mL distilled water, stir for 24h to fully dissolve. After the polyethylene oxide is fully dissolved, take 3 ml of ethanol and place it in a plastic tube, and add 5 g of liquid indium gallium tin alloy (In22%wt Ga 68%wt Sn 10%wt) at the same time. Sonicate for 60 s at 30% amplitude with an ultrasonic cell disruptor to obtain a gray liquid metal dispersion in ethanol. Centrifuge the dispersion at a speed of 2000 rpm for 2 minutes, remove the supernatant, and seal it for long-term storage. Before use, add 2mL of polyethylene oxide aqueous solution into the precipitate of liquid metal particles, stir well and then use it.

Embodiment 2

[0102] This example is used to illustrate the preparation of liquid metal conductive ink.

[0103] Add 5g of polyvinylpyrrolidone into 100mL of n-decyl alcohol, stir for 24 hours to fully dissolve, and make an alcoholic solution of polyvinylpyrrolidone. After the polyvinylpyrrolidone (PVP) was fully dissolved, 35 ml of the solution was taken and placed in a beaker, and 100 g of liquid indium gallium eutectic alloy (Ga 75.5%wt In 24.5%wt) was added at the same time. Use an electric grinder to stir the liquid metal at a speed of 20,000 rpm for 20 minutes. The metal is dispersed into small particles in the solution to obtain a gray liquid metal ink, which can be used after stirring evenly.

Embodiment 3

[0105] This example is used to illustrate the preparation of flexible and stretchable conductive circuits on the surface of smart clothing.

[0106] The present invention uses the screen printing station to adopt the mode of screen printing to print the T-shirt screen printing ink according to the figure 1 The pattern is printed on the inner side of the elastic long-sleeved swimsuit as the base layer, and dried at 80 degrees Celsius for 20 minutes. Then continue to use the screen printing station to print the liquid metal ink of Example 1 or 2 on the base layer, and dry it at 80 degrees Celsius for 30 minutes or at room temperature for 24 hours. Finally, the T-shirt screen printing ink is printed on the liquid metal ink layer by a screen printing station to encapsulate the liquid metal layer. And dry at 80 degrees Celsius for 20 minutes. After curing, stretching the elastic long-sleeved swimsuit by 30 percent made the liquid metal ink conductive.

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PUM

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Abstract

The invention provides high-elasticity intelligent clothes based on a liquid metal and further provides a preparation method and application of the high-elasticity intelligent clothes. The high-elasticity intelligent clothes comprises a controller part and a functional part, wherein the functional part comprises an electrophysiological detection module, an electrochemical detection module and a heating and heat preservation module. According to the high-elasticity intelligent clothes, printing of a flexible stretchable circuit on clothes is realized, and interconnection wires and electrodes ofthe liquid metal do not fail under various deformation conditions of the clothes; and a circuit manufactured by the method has excellent tensile stability and repeatability. A conductive ink disclosed by the invention is low in cost, utilization rate of the liquid metal is high, using amount of the liquid metal is low, the circuit is adjustable in line width, extremely high production efficiencyis achieved, and the preparation method is very suitable for large-scale production of elastic circuits.

Description

technical field [0001] The invention belongs to the field of wearable devices, and in particular relates to a liquid metal-based highly elastic smart clothing, a preparation method and application thereof. Background technique [0002] With the continuous improvement of the quality of life, people are paying more and more attention to their own health. For athletes and some special patients, real-time monitoring of physiological and biochemical indicators such as ECG, EMG, potassium ion concentration, sodium ion concentration, glucose concentration, and lactic acid concentration in the body is particularly important. However, the acquisition of these physiological and biochemical indicators often requires professionally trained personnel, expensive large-scale instruments, and long-term waiting, and most of the tests are invasive, which will bring pain and infection risks to the tested personnel. Therefore, a wearable device that can detect non-invasively and monitor variou...

Claims

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Application Information

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IPC IPC(8): A41D13/12C09D11/03
CPCA41D13/12C09D11/03
Inventor 蒋兴宇唐立雪
Owner THE NAT CENT FOR NANOSCI & TECH NCNST OF CHINA
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