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Preparing method for graphite composite film

A composite film and graphite technology, which is applied to the device for coating liquid on the surface, pretreatment surface, coating, etc., can solve the problems of uneven thickness, rough surface, reduce the applicability of graphite composite film, etc., to improve the specific capacitance effect of value

Inactive Publication Date: 2019-05-14
太仓斯迪克新材料科技有限公司
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Problems solved by technology

[0004] However, the existing graphite composite film uses the graphite prepared by the redox method, the number of layers is usually more than ten layers, the thickness is thick and it is easy to have defects, and then it is made by the spin coating method, so that the prepared graphite The performance of the composite film has declined, and it has the disadvantages of uneven thickness, rough surface and poor adhesion, which reduces the applicability of the graphite composite film

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  • Preparing method for graphite composite film
  • Preparing method for graphite composite film

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preparation example Construction

[0023] The present invention provides a preparation method of a graphite composite membrane, comprising providing a zeolite suspension and a graphite suspension, the graphite suspension comprising graphite oxide; reducing the graphite suspension to reduce the graphite oxide to form partially reduced graphite, Then add the zeolite suspension and a surfactant to form a mixed solution, and then reduce the mixed solution to completely reduce the part of the reduced graphite to form graphite, and then use the electrode aerosol deposition method to form the mixed solution on a substrate. A graphite composite film.

[0024] Specifically, the zeolite suspension contains nano zeolite particles with a particle diameter of 90-180 nm, and the concentration may be 250-300 ppm. The zeolite suspension can be prepared by conventional methods. In addition, the pH value of the zeolite suspension can be 11-13 under general manufacturing process. For example, the nano-zeolite particles can be s...

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Abstract

The invention discloses a preparing method for a graphite composite film. The preparing method includes the steps that a zeolite suspension is prepared and includes nano zeolite particles with the concentration being 250 ppm to 300 ppm and the particle size being 90 nm to 180 nm; a graphite suspension is prepared and includes graphite oxide with the concentration being 150 ppm to 300 ppm; an alkaline reagent is added into the graphite suspension, and then the graphite suspension containing the alkaline reagent is oscillated under the temperature ranging from 150 DEG C to 190 DEG C; the reducedgraphite suspension and the reduced zeolite suspension are mixed according to the volume ratio being 1:1 to 2:1, and a surface active agent is added to form a mixed solution; the mixed solution is reduced; the reduced mixed solution is atomized, and multiple atomized liquid drops re formed; an electrode is used for treating the multiple atomized liquid drops so that the multiple atomized liquid drops can carry charges; and the atomized liquid drops with the charges are deposited on a base plate, and the temperature of the base plate ranges from 400 DEG C to 650 DEG C.

Description

technical field [0001] The invention relates to a preparation method of a composite membrane, in particular to a preparation method of a graphite composite membrane. Background technique [0002] Graphite has excellent mechanical properties, high thermal conductivity, high electron mobility, and high specific surface area. However, graphite prepared by the redox method is prone to damage due to changes in temperature and pH during the preparation process or extrusion during the processing procedure. The agglomeration phenomenon leads to a decrease in the specific surface area and affects the electrical properties of graphite. Therefore, the direct application of this type of graphite is not high. On the contrary, the graphite dispersed in the solution is easy to mix with various materials to form a composite material system. Zeolite has regular pores and good heat resistance and pressure resistance. Therefore, making a composite material with graphite and zeolite, such as ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D1/00B05D5/12B05D7/24B05D3/02
Inventor 金闯
Owner 太仓斯迪克新材料科技有限公司
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