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Microwave method for large-scale and rapid improvement of hydrophilicity of carbon base and application thereof

A carbon-based, hydrophilic technology, applied in the field of improvement of functional materials, can solve the problems of high cost, complex production process, high energy consumption, etc., and achieve the effect of low equipment, simple experimental steps, and low energy consumption

Inactive Publication Date: 2019-05-28
NANJING UNIV OF 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 provide a method with low price, simple process, quick response, environmental protection and harmlessness, which can improve the hydrophilicity of carbon cloth on a large scale, so as to overcome the complicated production process and high energy consumption of the current hydrophilicity of carbon substrates. , high cost and other disadvantages

Method used

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  • Microwave method for large-scale and rapid improvement of hydrophilicity of carbon base and application thereof
  • Microwave method for large-scale and rapid improvement of hydrophilicity of carbon base and application thereof
  • Microwave method for large-scale and rapid improvement of hydrophilicity of carbon base and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Take two pieces of 10*10cm carbon cloth, one of them is placed in a microwave reactor for microwave reaction for 120s, and the other piece is not treated at all. Drop 1 to 20 drops of water on it with a dropper, and you can observe the microwave reaction. The phenomenon of arc discharge ignition is eliminated, and the hydrophilicity of the carbon cloth after microwave treatment is much greater than that of carbon cloth without any treatment (such as figure 1 )

Embodiment 2

[0037] Put 3 small pieces of carbon cloth with a size of 3*4cm directly into a microwave reactor filled with air, and carry out microwave reactions for 30s, 60s (2 times of 30s), 120s (4 times of 30s), and then spray the surface with drops Pipe drops 1 to 20 drops of water, and it can be observed that arc discharge and ignition have occurred in the microwave reaction, and the hydrophilic properties of the products have been improved, and the carbon cloth has the best hydrophilic properties after microwave treatment for 120s (such as image 3 )

Embodiment 3

[0039] Put 3 small pieces of carbon cloth with a size of 3*4cm directly into the N 2 In the microwave reactor, the microwave reaction was carried out for 30s, 60s, and 120s respectively, and then 1 to 20 drops of water were dropped on the surface with a dropper respectively. It can be observed that arc discharge phenomenon occurred in the microwave reaction, and the hydrophilic properties of the products were obtained. Greatly improved, and the carbon cloth has the best hydrophilic performance after microwave treatment for 120s (such as Figure 4 )

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Abstract

The invention discloses a microwave method for large-scale and rapid improvement of hydrophilicity of a carbon base, and belongs to the technical field of functional materials. The carbon base withoutany treatment such as carbon cloth and carbon fibre is put into a microwave reactor full of air or N2 to be subjected to microwave reaction for 5 to 600 s, or the carbon base the surface of which isdripped with water or soaked wet with organic solvent is put into microwave to be subjected to microwave reaction for 5 to 600 s, the hydrophilicity of the carbon base is greatly improved. The experiment that a microwave method is adopted to improve the hydrophilicity of the carbon base has the characteristics that the required time is short, that reaction temperature reaches as high as thousandsof Celsius degrees, that the equipment cost is low, that the experimental steps are simple, that no harm is created to the environment and the like. Requirements for preparing hydrophilic experiment of carbon cloth on a large scale in industry are met.

Description

technical field [0001] The invention relates to a microwave method capable of rapidly improving the hydrophilicity of carbon substrates on a large scale, and belongs to the technical field of improvement of functional materials. Background technique [0002] In recent years, with the rapid development of electronic technology, there is a great demand for high specific capacity energy storage devices and wearable electronic devices. Carbon-based materials can be used as electrode materials in the field of energy storage due to their well-developed pore structure, large specific surface area, and light weight. Flexible carbon-based materials provide excellent carriers for wearable devices. Traditional carbon-based materials and improved methods have disadvantages such as low energy storage and single function, so they cannot meet the current needs. Carbon-based composite materials through functional compounding can effectively improve the optical and electrochemical propertie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J19/12
Inventor 朱纪欣王雪友张桥
Owner NANJING UNIV OF TECH
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