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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, achieve mild and controllable reaction conditions, excellent photothermal response performance, strain and temperature sensing performance stable effect

Active Publication Date: 2020-09-18
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

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  • Breathable and waterproof multi-response fabric sensor
  • Breathable and waterproof multi-response fabric sensor
  • Breathable and waterproof multi-response fabric sensor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] (1) Preparation of MXene:

[0039] Mix 1 g of LiF and 20 ml of dilute hydrochloric acid (9M) for 15 minutes, then add 1 g of Ti 3 AlC 2 The powder is slowly added to it, and stirring is continued at 35 ℃ for 24 h until the etching is 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 ultrasonically for 1 hour and centrifuged at 3500 rpm for 1 hour to collect the upper black liquid, which is the MXene colloidal solution. figure 2 In 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 flexible elastic fabric into the above solu...

Embodiment 2

[0044] (1) Preparation of MXene:

[0045] The preparation process and conditions are the same as the 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 and react with magnetic stirring for 6 h. After that, take it out and wash it with deionized water and put it in a 40℃ oven. Dry for 12 h. The PDA modified elastic fabric 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 above-mentioned dipping and drying process was repeated twice to make MXene immersed 3 times Fabric. In order to give the fabric super-hydrophobic properties and maintain the inherent breathability of the fabric itself, the fabric immersed in MXene 3 times was immersed in a 1 wt.% PDMS n-heptane solut...

Embodiment 3

[0050] (1) Preparation of MXene:

[0051] The preparation process and conditions are the same as the 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 and react with magnetic stirring for 6 h. After that, take it out and wash it with deionized water and put it in a 40℃ oven. Dry for 12 h. The PDA modified stretch fabric was immersed in a 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 immersion and drying process was repeated 4 times to make a fabric impregnated with MXene 5 times . In order to give the fabric super-hydrophobic properties and maintain the inherent breathability of the fabric itself, the fabric impregnated with MXene for 5 times was immersed in a 1wt.% polydimethylsil...

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PUM

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Abstract

The invention discloses a breathable and waterproof multi-response fabric sensor. The sensor comprises a flexible elastic fabric base body, an interface layer, a functional layer and a protective layer from inside to outside, wherein the interface layer is a polydopamine layer, the functional layer is an MXene network, the protective layer is polydimethylsiloxane. In the invention, the elastic fabric is subjected to polydopamine interface modification, then the elastic fabric is subjected to dipping modification by using an MXene dispersion liquid, and finally hydrophobic treatment is performed by using the polydimethylsiloxane to obtain the MXene-based fabric sensor. The sensor disclosed by the invention is breathable and waterproof, and can show corresponding resistance response under different external strains and temperatures; the preparation method is simple, large-scale production can be achieved, and the multi-response fabric sensing device has excellent sensing performance andgood environmental stability and is of great significance in the field of intelligent wearable clothes.

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 the Internet of Everything, which has also put forward higher requirements for smart wearable electronic products. Traditional wearable devices rely on electromechanical gyroscopes and accelerometers combined sensing devices. However, this type of sensing equipment has the problems of high cost, complicated equipment and single test. In order to overcome these difficulties, flexible wearable electronics came into being. How to design smart wearable electronics with light, thin, flexible and diverse performance is a research direction that people are increasingly focusing on. [0003] Nowadays, the preparation methods of f...

Claims

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Application Information

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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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