Liquid coating for protecting surface of aluminum substrate, and preparation method thereof

A technology of liquid coatings and aluminum substrates, applied in the field of coatings, can solve the problems of high temperature resistance, poor adhesion, and acid and alkali resistance of the coating, and achieve the effects of improving production efficiency, reducing production costs, and eliminating cleaning steps

Inactive Publication Date: 2020-05-08
江门市阪桥电子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art, to provide a liquid coating for the surface protection of aluminum substrates and its preparation method, aiming to solve the problems of traditional coatings that are not resistant to high temperature, acid and alkali, poor adhesion, and low hardness. and other technical issues

Method used

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  • Liquid coating for protecting surface of aluminum substrate, and preparation method thereof
  • Liquid coating for protecting surface of aluminum substrate, and preparation method thereof
  • Liquid coating for protecting surface of aluminum substrate, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A liquid coating for protecting the surface of an aluminum substrate, comprising the following components by weight:

[0029]

[0030] The particle size of the superfine talcum powder is 3000 mesh.

[0031] The fineness of ultra-fine barium sulfate is 0.28μm.

[0032] A preparation method for a liquid coating for aluminum substrate surface protection, comprising the following steps:

[0033] (1) Mix the UV curable resin and the UV silicone oligomer, stir and mix to obtain the first mixture; wherein the stirring speed is 500 rpm, and the stirring time is 3 minutes;

[0034] (2) Add photoinitiator 907 to the first mixture, stir and mix to obtain the second mixture; wherein the stirring speed is 500 rpm, and the stirring time is 3 minutes;

[0035] (3) Add ultra-fine talc powder, ultra-fine barium sulfate, silicon dioxide powder and wetting and dispersing agent in the second mixture, stir and mix to obtain the third mixture; wherein the stirring speed is 500 rpm, and ...

Embodiment 2

[0040] A liquid coating for protecting the surface of an aluminum substrate, comprising the following components by weight:

[0041]

[0042] Wherein, the particle diameter of the ultrafine talcum powder is 3500 mesh.

[0043] Wherein, the fineness of the ultrafine barium sulfate is 0.25 μm.

[0044] A preparation method for a liquid coating for aluminum substrate surface protection, comprising the following steps:

[0045] (1) Mix UV epoxy acrylic resin and epoxy modified silicone resin, stir and mix to obtain the first mixture; wherein the stirring speed is 600 rpm, and the stirring time is 5 minutes;

[0046] (2) Add photoinitiator ITX in the first mixture, stir and mix to obtain the second mixture; wherein the stirring speed is 600 rpm, and the stirring time is 5 minutes;

[0047] (3) Add ultrafine talc powder, ultrafine barium sulfate, silicon dioxide powder and wetting and dispersing agent in the second mixture, stir and mix to obtain the third mixture; wherein the ...

Embodiment 3

[0052] A liquid coating for protecting the surface of an aluminum substrate, comprising the following components by weight:

[0053]

[0054] Wherein, the particle diameter of the superfine talcum powder is 4000 mesh.

[0055] Wherein, the fineness of the ultrafine barium sulfate is 0.2 μm.

[0056] A preparation method for a liquid coating for aluminum substrate surface protection, comprising the following steps:

[0057] (1) Mix UV urethane acrylate and polymethylphenyl silicone resin, stir and mix to obtain the first mixture; wherein the stirring speed is 650 rpm, and the stirring time is 7 minutes;

[0058] (2) Add photoinitiator 369 to the first mixture, stir and mix to obtain the second mixture; wherein the stirring speed is 650 rpm, and the stirring time is 7 minutes;

[0059] (3) Add ultrafine talcum powder, ultrafine barium sulfate, silicon dioxide powder and wetting and dispersing agent in the second mixture, stir and mix to obtain the third mixture; wherein the...

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Abstract

The invention discloses a liquid coating for protecting the surface of an aluminum substrate, and a preparation method thereof. The liquid coating for protecting the surface of the aluminum substrateis prepared from, by weight, 25-50 parts of UV resin, 15-30 parts of organic silicon resin, 10-30 parts of a photosensitizer, 5-10 parts of superfine talcum powder, 10-30 parts of superfine barium sulfate, 1-3 parts of a wetting dispersant, 15-30 parts of silica powder and 5-10 parts of an organic silicon defoamer. The preparation method of the liquid coating for protecting the surface of the aluminum substrate comprises the following steps: mixing the UV resin and the organic silicon resin, and uniformly stirring and mixing to obtain a first mixture; adding the photosensitizer into the firstmixture, and uniformly stirring and mixing to obtain a second mixture; adding the superfine talcum powder, the superfine barium sulfate, the silica powder and the wetting dispersant into the second mixture, and uniformly stirring and mixing to obtain a third mixture; and grinding and dispersing the third mixture, adding the organic silicon defoamer and the wetting dispersant, and uniformly mixingto obtain the liquid coating for protecting the surface of the aluminum substrate.

Description

technical field [0001] The invention belongs to the technical field of coatings, in particular to a liquid coating for protecting the surface of an aluminum substrate and a preparation method thereof. Background technique [0002] In electronic equipment, circuit boards usually provide necessary support for various components in the circuit, facilitate the insertion of various components, and realize electrical connection, and are widely used in electronic devices. The substrate of the flexible circuit board in the circuit board is usually an aluminum substrate, and the aluminum substrate is easily oxidized by oxygen in the air and easily corroded by acid and alkali, so protection measures are often required. [0003] At present, most of the market uses PVC coating technology to protect the surface of aluminum substrates, but PVC coating is not resistant to high temperature, easy to scratch, and not resistant to acid and alkali. After acid and alkali etching, this layer of a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/10C09D175/14C09D167/06C09D183/06C09D183/04C09D201/00C09D5/08C09D7/61B05D3/06B05D7/14
CPCB05D3/067B05D7/14C08K2003/3045C08L2201/08C09D5/08C09D5/18C09D163/10C09D167/06C09D175/14C09D201/00C09D7/61C08L83/04C08K13/02C08K3/34C08K3/30C08K3/36C08L83/06
Inventor 周瑞朴周瑞波马军
Owner 江门市阪桥电子材料有限公司
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