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Super-hydrophobic conductive leather and preparation method thereof

A super-hydrophobic, leather-based technology, applied in special leather manufacturing, small raw hide/big raw hide/leather/fur treatment, small raw hide/big raw hide/leather skin/fur chemical treatment, etc., can solve the problem of electrical conductivity and electronic sensing Stability and other issues, to achieve the effect of easy realization, excellent conductivity and high specific surface area

Inactive Publication Date: 2021-12-28
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art that the electrical conductivity and electronic sensing of the leather-based electronic skin are unstable in harsh environments, and provide a super-hydrophobic conductive leather and its preparation method

Method used

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  • Super-hydrophobic conductive leather and preparation method thereof
  • Super-hydrophobic conductive leather and preparation method thereof
  • Super-hydrophobic conductive leather and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043]A preparation method of amphiphilic titanium carbide nanosheets, comprising the steps of:

[0044] (1) Dissolve 2.5g of polyvinylpyrrolidone in a mixture of 75mL of absolute ethanol and 21mL of deionized water, stir at 130rpm at room temperature, then add 12g of styrene and 0.19g of azobisiso Butyronitrile, stirred for 35 minutes, incubated at 85°C for 17 hours, centrifuged, washed, and vacuum-dried at 45°C for 5 hours to obtain polystyrene microspheres.

[0045] (2) Add 0.32g of polystyrene microspheres into 120mL of deionized water, ultrasonically disperse for 22min, then add 165mL of titanium carbide aqueous dispersion with a concentration of 1.1mg / mL, stir at 400rpm for 5h at room temperature, and centrifuge the product , washed, and dried in vacuum at 30° C. for 5 hours to obtain polystyrene@titanium carbide microspheres.

[0046] (3) Add 0.4g polystyrene@titanium carbide microspheres into 35mL tetrahydrofuran, stir magnetically at 51°C and 410rpm for 35h, centrifu...

Embodiment 2

[0050] A preparation method of amphiphilic titanium carbide nanosheets, comprising the steps of:

[0051] (1) Dissolve 3.3g of polyvinylpyrrolidone in a mixture of 82mL of absolute ethanol and 10mL of deionized water, stir at 100rpm at room temperature, then add 18g of styrene and 0.15g of azobisiso Butyronitrile, stirred for 50 minutes, incubated at 81°C for 20 hours, centrifuged, washed, and vacuum-dried at 50°C for 4 hours to obtain polystyrene microspheres.

[0052] (2) Add 0.25g of polystyrene microspheres into 150mL of deionized water, ultrasonically disperse for 34min, then add 190mL of titanium carbide aqueous dispersion with a concentration of 0.9mg / mL, stir at 310rpm at room temperature for 8h, and centrifuge the product , washed, and dried in vacuum at 55° C. for 7 hours to obtain polystyrene@titanium carbide microspheres.

[0053] (3) Add 0.3g polystyrene@titanium carbide microspheres into 60mL N'N'-dimethylformamide, stir magnetically at 35°C and 500rpm for 26h, ...

Embodiment 3

[0057] A preparation method of amphiphilic titanium carbide nanosheets, comprising the steps of:

[0058] (1) Dissolve 2.7g of polyvinylpyrrolidone in a mixture of 78mL of absolute ethanol and 25mL of deionized water, stir at 140rpm at room temperature, then add 15g of styrene and 0.20g of azobisiso Butyronitrile, stirred for 40 minutes, incubated at 70°C for 13 hours, centrifuged, washed, and vacuum-dried at 30°C for 6 hours to obtain polystyrene microspheres.

[0059] (2) Add 0.43g of polystyrene microspheres to 80mL of deionized water, ultrasonically disperse for 40min, then add 220mL of titanium carbide aqueous dispersion with a concentration of 1.2mg / mL, stir at 370rpm at room temperature for 6h, and centrifuge the product , washed, and dried in vacuum at 50° C. for 8 hours to obtain polystyrene@titanium carbide microspheres.

[0060] (3) Add 0.5 g of polystyrene@titanium carbide microspheres into 45 mL of acetone, stir magnetically at 55 °C and 260 rpm for 37 h, centrif...

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Abstract

The invention discloses super-hydrophobic conductive leather and a preparation method thereof, and belongs to the technical field of intelligent leather products and flexible electronic skin. The preparation method comprises the steps of preparing positively charged polystyrene microspheres by adopting a dispersion polymerization method; and taking the polystyrene microsphere as a template, coating a titanium carbide nanosheet with negative electricity on the surface of the polystyrene microsphere through an electrostatic attraction effect between positive and negative charges, partially removing the template by utilizing an etching agent to obtain an amphiphilic titanium carbide nanosheet, filtering an amphiphilic titanium carbide nanosheet dispersion by taking leather as a filter, and drying to obtain the super-hydrophobic conductive leather. Hydrophilic and hydrophobic acting forces of the amphiphilic titanium carbide nanosheet drive the amphiphilic titanium carbide nanosheet to be directionally arranged on the surface of the leather in a manner that the hydrophilic end faces downwards and the hydrophobic end faces upwards, the titanium carbide nanosheets which are in contact with each other provide conductivity for the leather, hydrophobic chain segments on the titanium carbide nanosheets provide low surface energy required by super-hydrophobicity for the leather, the titanium carbide nanosheets and the hydrophobic chain segments have a synergistic effect, and the hydrophobic and conductive properties of the leather product are synchronously realized.

Description

technical field [0001] The invention belongs to the technical field of intelligent leather products and flexible electronic skin, and relates to a superhydrophobic conductive leather and a preparation method thereof. Background technique [0002] As the surface covering of the human body, the skin provides a physical barrier to protect internal organs, and has a neural network that senses external environmental stimuli such as temperature, vibration, and pressure. Electronic skin is an artificial skin that mimics the function of human skin. In recent years, driven by autonomous artificial intelligence, medical diagnosis, and bionic prosthetics, the development of electronic skins that can understand, simulate, and even surpass human skin has become a research hotspot. [0003] Leather, a traditional natural material derived from animal skin, inherits the complex structure of skin, which makes it a potential candidate for fabricating high-performance e-skins. The main funct...

Claims

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Application Information

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IPC IPC(8): C14C13/00C08F112/08C01B32/921
CPCC14C13/00C08F112/08C01B32/921C01P2004/04C01P2002/82C01P2004/62
Inventor 鲍艳郭茹月郑茜许佳琛张文博刘超祝茜
Owner SHAANXI UNIV OF SCI & TECH
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