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Preparation method for porous carbon material and porous carbon material

A technology of porous carbon materials and foaming materials, applied in chemical instruments and methods, carbon compounds, inorganic chemistry, etc., can solve the problems of high cost and difficult industrialization, and achieve the effects of low cost, stable structure and cost reduction

Inactive Publication Date: 2018-10-09
SHENZHEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing preparation methods of porous carbon materials are costly and difficult to industrialize

Method used

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  • Preparation method for porous carbon material and porous carbon material
  • Preparation method for porous carbon material and porous carbon material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A preparation method of a porous carbon material, using expanded polyethylene as a carbon source, comprising the steps of:

[0029] First dry the polyethylene material at 80°C for 4 hours, then mix the dried polyethylene (95wt%) with 4,4-disulfonylhydrazide diphenyl ether (OBSH) foaming agent (5wt%) evenly The mixed material is obtained, and the mixed material is molded in a flat vulcanizing machine at a processing temperature of 160° C. and a holding time of 3 minutes, and the obtained product is dried at 60° C. for 2 hours. Then the dried product is transferred to a porcelain boat, and then transferred to a tubular carbonization furnace. Under a flowing nitrogen atmosphere (nitrogen flow rate is 120cc / min), the temperature is raised to 400°C at a rate of 3°C / min and then kept for 3 Carry out carbonization treatment within 1 hour, after the temperature drops to room temperature, take out the sample to obtain the porous carbon material.

Embodiment 2

[0031] A kind of preparation method of porous carbon material, take expanded polypropylene as carbon source, comprises the steps:

[0032] First dry the polypropylene material at 80°C for 4 hours, then evenly mix the dried polypropylene (93wt%) and ABN foaming agent (7wt%) to obtain a mixture, and place the mixture on a flat vulcanizer Molding process is carried out in the middle, the processing temperature is 230 ℃, the holding time is 5 minutes, and the obtained product is dried at 60 ℃ for 2 hours. Then transfer the dried product to a porcelain boat, and then transfer it to a tubular carbonization furnace. Under a flowing nitrogen atmosphere (120cc / min), the temperature is raised to 500°C at a rate of 3°C / min and then kept for 4 hours for carbonization. After the temperature drops to room temperature, the sample is taken out to obtain a porous carbon material.

Embodiment 3

[0034] A kind of preparation method of porous carbon material, take expanded polyvinyl chloride as carbon source, comprises the steps:

[0035] First dry the polyvinyl chloride material at 80°C for 4 hours, then mix the dried polyvinyl chloride (94wt%), silane coupling agent Z6043 (3wt%) and DIPA foaming agent (3wt%) evenly to obtain Mixed material, the mixed material is molded in a flat vulcanizing machine, the processing temperature is 190°C, the holding time is 5 minutes, and the obtained product is dried at 60°C for 2 hours. Then transfer the dried product to a porcelain boat, and then transfer it to a tubular carbonization furnace. Under a flowing nitrogen atmosphere (120cc / min), heat it up to 500°C at a rate of 3°C / min and keep it warm for 3 hours for carbonization. After the temperature drops to room temperature, the sample is taken out to obtain a porous carbon material.

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Abstract

The invention provides a preparation method for a porous carbon material. The preparation method comprises the following steps that a high polymer material and a foaming agent are uniformly mixed so as to obtain a mixture, the mixture is processed and formed so as to obtain a high polymer foam material, and the high polymer foam material is subjected to carbonization treatment so as to obtain theporous carbon material, wherein the high polymer material comprises one or more of ethylene, propylene, methyl methacrylate, styrene, butadiene, vinyl chloride, chloropropene, 1,3-butadiene, dimethylterephthalate, ethylene glycol, acrylonitrile, vinyl acetate, methyl acrylate, caprolactam and polymers synthesized by at least one of derivatives of caprolactam as monomers. The method has the advantages that the high polymer foam material is prepared by adopting a traditional processing and forming method and serves as a carbon source, carbonization heat treatment is carried out so as to obtainthe porous carbon material with the high specific surface area, the raw material source is wide, the cost is low, a preparation process is simple, and therefore the volume production of the porous carbon material is realized, and the cost is greatly lowered. The invention further provides the porous carbon material.

Description

technical field [0001] The invention relates to the technical field of porous carbon preparation, in particular to a method for preparing a porous carbon material and the porous carbon material. Background technique [0002] In today's society, with the rapid increase of population and the rapid development of industry, people excessively develop and use non-renewable energy sources (such as coal, oil, natural gas and other fossil energy sources), making energy scarce, and at the same time, a large amount of pollutants are discharged into the atmosphere , causing serious pollution. Environmental pollution and energy crisis have become major challenges to the sustainable development of mankind. Therefore, protecting the environment and developing green and environmentally friendly energy storage devices have become the focus of scientists' attention and research. [0003] Carbon occurs in nature in different forms and is the basis of all organic compounds. With the rapid d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/318
CPCC01B32/318
Inventor 朱才镇黄锦涛韩沛罗东海刘会超于佳立徐坚
Owner SHENZHEN UNIV
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