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Breathable transparent flexible fiber-based epidermal electrode and preparation method thereof

A flexible fiber and breathable technology, applied in the field of breathable transparent flexible fiber-based epidermal electrodes and their preparation, can solve problems such as skin damage and airtight wearable flexible sensors, and achieve high transparency, high conductivity, and good breathability. sexual effect

Inactive Publication Date: 2020-10-13
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: the existing wearable flexible sensor is airtight during long-time wearing, which will cause damage to the skin

Method used

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  • Breathable transparent flexible fiber-based epidermal electrode and preparation method thereof
  • Breathable transparent flexible fiber-based epidermal electrode and preparation method thereof
  • Breathable transparent flexible fiber-based epidermal electrode and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A gas-permeable transparent flexible fiber-based skin electrode, comprising a transparent flexible nanofiber support and a highly conductive nano three-dimensional network arranged on the top through a filtering method. The transparent flexible nanofiber support is electrospinning technology get. The preparation method of the air-permeable transparent flexible fiber-based skin electrode is:

[0033] Step 1: Add 10g polyvinylidene fluoride (molecular weight 320,000) to 40g N,N-dimethylformamide solvent, heat and stir in a 60℃ water bath for 3 hours to obtain a uniform mass fraction of 20wt% poly Vinylidene fluoride electrospinning solution. Ultrasound for another 30 minutes to remove bubbles in the polymer solution.

[0034] The second step: extract 10 mL of the obtained polyvinylidene fluoride electrospinning solution with a mass fraction of 20 wt% and add it to the spinning syringe; cut the polyethylene terephthalate (PET) board by a laser cutting machine The shape of 1....

Embodiment 2

[0039] A gas-permeable transparent flexible fiber-based skin electrode includes a transparent flexible nanofiber support and a highly conductive nano three-dimensional network arranged on the top by a filtering method. The transparent flexible nanofiber support is electrospinning technology get. The preparation method of the air-permeable transparent flexible fiber-based skin electrode is:

[0040] Step 1: Add 3g polyacrylonitrile (molecular weight 150 000) to 17g N,N-dimethylformamide solvent, stir at room temperature for 5 hours to obtain uniform polyacrylonitrile electrospinning with a mass fraction of 15wt% liquid. Ultrasound for another 30 minutes to remove bubbles in the polymer solution.

[0041] The second step: extract 10 mL of the obtained polyacrylonitrile electrospinning solution with a mass fraction of 15wt% and add it to the spinning syringe; cut the polyethylene terephthalate (PET) board into 1.5 by a laser cutting machine The shape of ×2cm2 is installed on the fi...

Embodiment 3

[0046] A gas-permeable transparent flexible fiber-based skin electrode includes a transparent flexible nanofiber support and a highly conductive nano three-dimensional network arranged on the top by a filtering method. The transparent flexible nanofiber support is electrospinning technology get. The preparation method of the air-permeable transparent flexible fiber-based skin electrode is:

[0047] The first step: adding 10 g of polyurethane (molecular weight 350,000) to 40 g of N,N-dimethylformamide solvent, stirring at room temperature for 3 hours to obtain a uniform polyurethane electrospinning solution with a mass fraction of 20 wt%. Then ultrasonic treatment for 30 minutes to remove air bubbles in the polyurethane electrospinning solution.

[0048] The second step: extract 10 mL of the obtained polyurethane electrospinning solution with a mass fraction of 20wt% and add it to the spinning syringe; cut the polyethylene terephthalate (PET) board by a laser cutting machine into 1...

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Abstract

The invention discloses a breathable transparent flexible fiber-based epidermal electrode and a preparation method thereof. A motor comprises a transparent flexible nanofiber support and a transparentconductive nanometer three-dimensional network arranged above the transparent flexible nanofiber support in a filtering mode. The preparation method comprises the following steps: dissolving a high-molecular polymer in an organic solvent to obtain a uniform polymer solution; installing a polyethylene glycol terephthalate plate on a fiber receiver for receiving a fiber support; installing an injector containing a polymer spinning solution in an electrostatic spinning device for spinning to form a nanofiber support; and adding a conductive nano material into the dispersion solvent to obtain a dispersion liquid, and compounding the dispersion liquid with the polymer nanofiber support to obtain the transparent flexible fiber-based epidermal electrode. The breathable transparent flexible fiber-based epidermal electrode prepared by the invention has good conductivity and transparency, can realize the seamless fitting of the epidermal electrode and human skin, and avoids damage to the skin caused by air tightness in a long-time real-time wearing process.

Description

Technical field [0001] The invention relates to a gas-permeable transparent flexible fiber-based skin electrode and a preparation method thereof, and belongs to the technical field of novel flexible electrodes. Background technique [0002] With the development of science and technology, wearable electronic devices have gradually become popular in people's lives. Among them, electrodes are necessary parts of electronic devices, but most electronic devices currently use metal electrodes. These hard electrodes make it difficult for wearable electronic devices to be flexible and lightweight. In addition, in various wearable flexible electronic sensors, flexible transparent electrodes are essential elements, and the opaque characteristics of commonly used metal electrodes make it difficult to apply to these new flexible electronic devices. [0003] At present, many wearable flexible sensors need to fit seamlessly and conformally with human skin to ensure high-fidelity sensing of vario...

Claims

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Application Information

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IPC IPC(8): H01B5/00D01D5/00B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00D01D5/003D01D5/0084H01B5/00
Inventor 李召岭朱苗苗王亚兵丁彬俞建勇
Owner DONGHUA UNIV
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