Zinc oxide-containing powder coating and preparation method thereof

A technology of powder coating and zinc oxide, which is applied in the direction of epoxy resin coating, rosin coating, coating, etc., which can solve the problem of adhesion of various dust, dirt and even oil stains on the coating, which is prone to blistering, cracking, peeling, coating, etc. Unsatisfactory mechanical properties and other problems, to achieve the effects of high qualified rate of finished products, improved surface leveling, and high gloss retention

Inactive Publication Date: 2013-08-21
汉源县源富锌业有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

[0002] With the continuous and stable growth of my country's economy and the continuous improvement of people's living standards, the powder coating business of metal components is also increasing, especially in industries such as instruments and meters, transportation facilities, and aluminum profiles. Powder coating can provide metals with excellent anti-corrosion However, due to the unsatisfactory anti-pollution perfo

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Example 1: Powder coating containing zinc oxide, the weight parts (kg) of its constituent raw materials are: novolac resin 45, phenolic epoxy resin 50, rosin resin 72, nano-sized titanium dioxide 20, zinc oxide 10, and dolomite powder 28 , Dapsone 5, activated carbon powder 9, hexamethylenetetramine 4.5 and film-forming agent 4.5.

[0019] The preparation method of powder coating containing zinc oxide includes the following steps:

[0020] (1) Carbon coated zinc oxide:

[0021] a: Crush the zinc oxide to 120 mesh, and then add it to the deionized water according to the weight of the raw materials. The weight ratio of the zinc oxide and the deionized water is 1:2.0, and the mixture is uniformly mixed;

[0022] b: Add glucose with 9.0% of the mass of zinc oxide to the obtained mixture, stir and mix uniformly, then add molybdenum carbide with 2.0% of the mass of glucose, stir and mix uniformly; spray granulation to obtain organic carbon-coated zinc oxide For powder, the inlet tem...

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PUM

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Abstract

The invention discloses a zinc oxide-containing powder coating and a preparation method thereof. The powder coating comprises the following raw materials by weight part: 40-50 of novolac resin, 45-55 of novolac epoxy resin, 70-75 of rosin resin, 18-22 of nanoscale titanium dioxide, 8-12 of zinc oxide, 25-30 of dolomite powder, 4-6 of dapsone, 8-10 of activated carbon powder, 3.5-5.5 of hexamethylenetetramine and 4.0-5.0 of a film forming agent. The powder coating disclosed in the invention adopts the novolac resin and novolac epoxy resin as main raw materials, and zinc oxide, activated carbon powder and the film forming agent are added to enhance the mixing property among each raw material. Meanwhile, the surface leveling of the powder coating is improved, and the powder coating has high gloss retention and improved decorative property. The prepared product has a high qualified rate.

Description

Technical field [0001] The invention relates to powder coatings, in particular to a powder coating containing zinc oxide and a preparation method thereof. Background technique [0002] With the continuous and stable growth of China's economy and the continuous improvement of people's living standards, the powder coating business of metal components is also increasing, especially in the industries of instrumentation, transportation facilities, and aluminum profiles. Powder coating can provide excellent corrosion protection for metals. Protection and decoration performance, but due to the unsatisfactory anti-pollution performance of the existing coatings used in the above fields, various types of dust, dirt and even oil stains are often attached to the coating; the anti-sticking ability is not ideal, and the existing powder coatings are formed The coating is prone to blistering, cracking, and peeling under the influence of natural conditions such as long-term outdoor exposure and r...

Claims

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Application Information

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IPC IPC(8): C09D193/04C09D161/06C09D163/00C09D5/46C09D7/12
Inventor 刘庆芳
Owner 汉源县源富锌业有限公司
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