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Aluminum thermal fin material

A heat sink, aluminum plate technology, applied in anti-corrosion coatings, coatings, layered products, etc., can solve the problems of reduced hydrophilicity, unclear, difficult to maintain the hydrophilicity of the surface of the heat sink material for a long time, etc., to reduce occlusion, The effect of efficient heat exchange

Inactive Publication Date: 2010-09-15
KOBE STEEL LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the cause of the organic hydrophilic resin film is not clear, and there is a problem that the hydrophilicity decreases over time when it comes into contact with water.
Therefore, it is difficult to maintain the hydrophilicity of the surface of the heat sink material for a long time, and there is still room for improvement

Method used

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  • Aluminum thermal fin material
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Examples

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Embodiment Construction

[0020] The aluminum heat sink material of the present invention has a hydrophilic film layer obtained from a resin composition containing a specific resin binder and porous fine particles. It is considered that this resin binder imparts excellent hydrophilicity to the film layer, and at the same time, a part of the dew condensation water adhering to the surface of the fin material permeates into the film layer and is absorbed into the pores of the porous particles, so the film The contact angle of the layer with respect to water becomes small, and it becomes possible to suppress clogging between fins. In addition, since the moisture absorption performance of the porous fine particles is exhibited for a long period of time, the hydrophilicity of the heat sink material of the present invention is also maintained for a long period of time.

[0021] The heat sink material of the present invention is made of an aluminum plate or an aluminum alloy plate, and aluminum of the 1000 ser...

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Abstract

The invention finds a film layer capable of showing hydrophilicity for a long time to provide an aluminum thermal fin material on a surface. The aluminum thermal fin material is formed by the hydrophilic film layer obtained by a resin composition comprising a resin bonder and a porous particle on the surface of the aluminum sheet or aluminum alloy sheet, wherein the resin bonder is (co)polymer or mixture of the (co)polymers constituted by more than one function group selected from carboxylic acid group, sulfonic group, hydroxyl group, amido group and ether bond and one part of whole of the carboxylic acid group and / or the sulfonic group is formed into the alkali salt and the porous particle contains non-hydrosoluble acrylic resin or alginic acid resin.

Description

technical field [0001] The present invention relates to a heat sink (fin) material made of aluminum (including aluminum alloy) on which a film layer having excellent hydrophilicity is formed on the surface. Aluminum heat sink material that can maintain a surface that is easily wetted by condensation water for a long period of time. Background technique [0002] Aluminum materials with excellent thermal conductivity, workability, and corrosion resistance are widely used in the heat exchangers of air conditioners. In order to perform heat exchange efficiently and to make the space compact (compact), aluminum The structure of the heat sink. Therefore, when the air conditioner is in operation, if the temperature of the surface of the fin material falls below the dew point of the air, the dew condensation water adhering to the surface of the fin material will condense, and the adjacent fins may be blocked. At this time, if the hydrophilicity of the surface of the aluminum heat ...

Claims

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Application Information

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IPC IPC(8): C08L101/02C08L101/06C08L101/08C08L33/00C08L5/04C09D201/02C09D201/06C09D201/08C09D5/08F28F19/04B32B15/08
Inventor 藤原直也馆麻由
Owner KOBE STEEL LTD
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