Heat-conducting hydrophilic composite film and preparation method thereof

A technology of composite thin film and thermal conductive thin film, which is applied in the direction of liquid chemical plating, metal material coating process, coating, etc., can solve the problem of heat dissipation performance reduction of heat sink, achieve small thermal conductivity, good thermal conductivity, and improve hydrophilicity performance effect

Pending Publication Date: 2017-11-24
GUANGDONG UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the present invention provides a heat-conducting hydrophilic composite film and a preparation method thereof to solve the problem in the prior art that the heat dissipation performance of the heat sink is reduced when the hydrophilic film is applied to the heat sink

Method used

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  • Heat-conducting hydrophilic composite film and preparation method thereof
  • Heat-conducting hydrophilic composite film and preparation method thereof
  • Heat-conducting hydrophilic composite film and preparation method thereof

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Embodiment Construction

[0033] As mentioned in the background technology section, the hydrophilic film in the prior art has poor thermal conductivity, and when applied on a heat sink, it will reduce the heat dissipation performance of the heat sink.

[0034] The inventors found that the reason for the above phenomenon is that the hydrophilic films used in the market in the prior art are mainly organic hydrophilic films, but the organic hydrophilic films themselves have poor thermal conductivity. Moreover, in the prior art, the hydrophilic film is prepared by dip coating, and the resulting hydrophilic film has a thicker thickness and poor thermal conductivity.

[0035] Based on this, the present invention provides a kind of heat-conducting hydrophilic composite film, comprising:

[0036] A thermally conductive film, the thermally conductive film is SnO doped with Sb 2 film;

[0037] A hydrophilic film located on the surface of the heat conduction film, the hydrophilic film is formed by atomizing pot...

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Abstract

The application provides a heat-conducting hydrophilic composite film and a preparation method thereof. The heat-conducting hydrophilic composite film comprises a heat-conducting film and a hydrophilic film positioned on the surface of the same, wherein the hydrophilic film is formed by atomizing potassium water glass and the hydrophilic film is less than 100 nanometers in thickness. As the hydrophilic film is of inorganic material, the hydrophilic film has better heat conductivity than a hydrophilic film of organic material; as the hydrophilic film is in atomized form and less than 100 nanometers in thickness that is of nano level, the influence on the heat conductivity of the heat-conducting film is low, that is to say, the heat-conducting hydrophilic composite film has hydrophilicity and good heat conductivity; therefore, by applying the heat-conducting hydrophilic composite film to radiating fins, hydrophilicity of the radiating fins is improved, and the influence on heat conductivity of the radiating fins is low.

Description

technical field [0001] The invention belongs to the technical field of film production, and in particular relates to a heat-conducting hydrophilic composite film and a preparation method thereof. Background technique [0002] As a surface coating film, hydrophilic film has unique properties. It has broad application prospects in heat exchangers, heat sinks, anti-fog, self-cleaning, etc., and has attracted more and more attention from researchers. [0003] However, the hydrophilic films currently used in the market have poor thermal conductivity, and when applied to heat sinks, the heat dissipation performance of the heat sink will be reduced. [0004] Therefore, it is an urgent problem to provide a composite film with better thermal conductivity and better hydrophilicity. Contents of the invention [0005] In view of this, the present invention provides a heat-conducting hydrophilic composite film and its preparation method to solve the problem in the prior art that the h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C18/12
CPCC23C18/1216C23C18/1225C23C18/1258
Inventor 李阳曾国勋吴起白张海燕钱艳楠
Owner GUANGDONG UNIV OF TECH
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