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A breathable and waterproof multi-response fabric sensor

A fabric sensor, breathable and waterproof technology, used in instruments, scientific instruments, surface/boundary effects, etc., can solve problems such as performance degradation, and achieve mild and controllable reaction conditions, simple preparation process, and stable strain and temperature sensing performance. Effect

Active Publication Date: 2022-02-15
YANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, according to the actual application, some researchers found that MXene is easy to oxidize in the air, and the corresponding performance is also reduced, which has become a crucial problem restricting the application of MXene.

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 breathable and waterproof multi-response fabric sensor
  • A breathable and waterproof multi-response fabric sensor
  • A breathable and waterproof multi-response fabric sensor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] (1) Preparation of MXene:

[0039] 1 g of LiF and 20 ml of dilute hydrochloric acid (9M) were stirred well for 15 min, followed by 1 g of Ti 3 AlC 2 The powder was added slowly, and the stirring was continued at 35 °C for 24 h until the etching was complete. Then the obtained MXene mixture was centrifuged and washed for 5 min at 3500 rpm with deionized water until the pH of the supernatant was greater than or equal to 6. The supernatant and the precipitate were mixed and sonicated for 1 h, then centrifuged at 3500 rpm for 1 h, and the upper layer of black liquid was collected, which was the MXene colloidal solution. figure 2 From the XRD patterns of MXene and MAX prepared for this example, it can be seen that the Al layer is completely etched, and the MXene is completely etched.

[0040] (2) Preparation of multifunctional MXene fabric sensor:

[0041] Put 0.24 g of Tris powder and 0.4 g of dopamine into 200 ml of deionized water and mix thoroughly, then put the flexi...

Embodiment 2

[0044] (1) Preparation of MXene:

[0045] The preparation process and its conditions are the same as step (1) of Example 1.

[0046] (2) Preparation of multifunctional MXene fabric sensor:

[0047] Put 0.24 g of Tris powder and 0.4 g of dopamine into 200 ml of deionized water and mix thoroughly, then put the flexible elastic fabric into the above solution for 6 h with magnetic stirring and react for 6 h. After the end, take it out and wash it fully with deionized water, and place it in a 40°C oven Dry for 12 h. The PDA-modified elastic fabric was immersed in the MXene colloid solution with a concentration of 5 wt.% for 10 minutes, the fabric was taken out and dried at 40 °C for 30 minutes, and then the above dipping and drying process was repeated twice to make MXene-impregnated three times fabric. In order to endow the fabric with superhydrophobic properties and maintain the inherent air permeability of the fabric itself, the fabric impregnated with MXene three times was i...

Embodiment 3

[0050] (1) Preparation of MXene:

[0051] The preparation process and its conditions are the same as step (1) of Example 1.

[0052] (2) Preparation of multifunctional MXene fabric sensor:

[0053] Put 0.24 g of Tris powder and 0.4 g of dopamine into 200 ml of deionized water and mix thoroughly, then put the flexible elastic fabric into the above solution for 6 h with magnetic stirring and react for 6 h. After the end, take it out and wash it fully with deionized water, and place it in a 40°C oven Dry for 12 h. The elastic fabric modified by PDA was immersed in the MXene colloidal solution with a concentration of 5 wt.% for 10 minutes, the fabric was taken out and dried at 40°C for 30 minutes, and then the dipping and drying process was repeated 4 times to prepare the fabric impregnated 5 times with MXene . In order to endow the fabric with superhydrophobic properties and maintain the inherent air permeability of the fabric itself, the fabric impregnated with MXene 5 times ...

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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PUM

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Abstract

The invention discloses a breathable and waterproof multi-response fabric sensor. From the inside to the outside, it includes a flexible elastic fabric substrate, an interface layer, a functional layer and a protective layer, wherein the interface layer is a polydopamine layer, the functional layer is an MXene network, and the protective layer is polydimethylsiloxane. The fabric was modified with polydopamine interface, then impregnated with MXene dispersion, and finally treated with polydimethylsiloxane to obtain a fabric sensor based on MXene. The sensor of the present invention is not only breathable and waterproof, but also can exhibit corresponding resistance responses under different external strains and temperatures; the preparation method is simple, it can be produced on a large scale, and the multi-response fabric sensor has excellent sensing performance and good environmental stability Sex, promising in the field of smart wearable clothing.

Description

technical field [0001] The invention relates to a breathable and waterproof wearable fabric sensor with photothermal response, temperature sensing and strain sensing, and belongs to the technical field of preparation of functional polymer composite materials. Background technique [0002] The development of 5G communication has promoted the arrival of the era of Internet of Everything, which also puts forward higher requirements for smart wearable electronic products. Traditional wearable devices rely on sensing devices composed of electromechanical gyroscopes and accelerometers. But this kind of sensing equipment has the problems of high cost, complicated instrument and single test. To overcome these difficulties, flexible and wearable electronics have emerged. How to design thin, flexible, and versatile smart wearable electronics is an increasingly focused research direction. [0003] The preparation methods of flexible and wearable electronics reported in the literature...

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): G01B7/16G01K7/16G01N13/00G01N25/00
CPCG01K7/16G01B7/18G01N13/00G01N25/00
Inventor 高杰峰骆俊晨高世杰汪玲黄学武
Owner YANGZHOU UNIV
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