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Preparation method of hydrophobic carbon fiber paper

A technology of carbon fiber paper and nano-carbon fiber, which is applied in the direction of carbon fiber, fiber treatment, fiber chemical characteristics, etc., can solve the problem that carbon fiber paper cannot fully meet the requirements of electrical conductivity and hydrophobicity at the same time, and achieve enhanced interaction, good stability, and porosity high effect

Inactive Publication Date: 2019-07-26
龙仕君
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Problems solved by technology

[0007] The main technical problem to be solved by the present invention is to provide a method for preparing hydrophobic carbon fiber paper in view of the defect that the existing carbon fiber paper cannot fully meet the requirements of electrical conductivity and hydrophobicity at the same time

Method used

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Examples

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preparation example Construction

[0029] Preparation of modified carbon nanofibers: Add sodium silicate solution with a mass fraction of 30% into a beaker, then add hydrochloric acid with a mass fraction of 20% to the beaker, adjust the pH value to 4, pour it into the reaction kettle, and Under the condition that the temperature is 30° C., stirring and reacting for 1 hour, the material is discharged to obtain the pretreated product;

[0030] Mix the above-mentioned pretreated material and nickel powder in a mass ratio of 1:1 and put them into the reactor. After stirring and reacting for 20 minutes, feed methane gas into the reactor, and heat it up to 700°C in a closed manner. Under the above temperature conditions, The reaction was stirred for 1 h to obtain a mixture;

[0031] Mix sunflower oil with the above mixture at a mass ratio of 1:2 and add it to the fermenter, then add 8% of the mixture mass to the fermenter at a concentration of 10 6 Cfu / mL yeast suspension and 6% distilled water of the mixture mass we...

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Abstract

The invention discloses a preparation method of a hydrophobic carbon fiber paper and belongs to the technical field of paper products. The method comprises taking sodium silicate as a raw material toproduce orthosilicic acid precipitates under acid conditions; blending and mixing nanosilicon dioxide and nickel to uniformly deposit the catalyst of nickel onto the surface of the nanosilicon dioxide; inletting methane gas to binding aliphatic ester onto the surface of carbon nanofibers to endow modified carbon nanofibers with hydrophobicity; mixing dodecane diamine and ethanol solution for high-temperature reaction with graphene to enhance interfacial interaction between polyurethane foam and modified graphene. Therefore, the contact angle between the prepared hydrophobic carbon fiber paperand water can be increased, hydrophobic properties of graphene-grafted polyurethane foam can be improved, the hydrophobicity of the prepared hydrophobic carbon fiber paper can be further enhanced, andaccording to the principles of polarity similarity and compatibility, binding between the hydrophobic carbon fiber paper and the water can be tighter. The hydrophobic carbon fiber paper has a broad application prospect.

Description

technical field [0001] The invention discloses a method for preparing hydrophobic carbon fiber paper, which belongs to the technical field of paper products. Background technique [0002] Proton exchange membrane fuel cell is a power generation device that directly converts chemical energy into electrical energy. It has the advantages of low operating temperature, fast start-up, high specific power, simple structure, and convenient operation. It is recognized as the first choice for electric vehicles, fixed power stations, etc. Preferred energy source. The key components of a proton exchange membrane fuel cell are a proton exchange membrane, a porous gas diffusion electrode and a bipolar plate. Among them, the porous gas diffusion electrode is usually divided into two layers: one layer is a gas diffusion layer, and the other layer is a catalyst layer. [0003] At present, domestic research on key materials for proton exchange membrane fuel cells has just started, especiall...

Claims

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Application Information

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IPC IPC(8): D21H13/50D21H17/57D01F9/12D06M13/224C08J9/36D06M101/40C08L75/04
CPCC08J9/36C08J2375/04D01F9/1272D06M13/2243D06M2101/40D21H13/50D21H17/57
Inventor 龙仕君
Owner 龙仕君
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