Highly-anticorrosive and chromium-free anti-fingerprint coating and preparation method thereof

A fingerprint-resistant and high-corrosion-resistant technology, applied in the field of coatings, can solve problems such as poor corrosion resistance and solvent resistance, high-temperature yellowing, and environmental pollution, and achieve the effects of good fingerprint resistance, improved adhesion, and simple preparation methods

Inactive Publication Date: 2019-03-29
青岛海创化学品有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a high-corrosion-resistant, chrome-free, fingerprint-resistant paint and a preparation method thereof, which solves the problem of the pollution of the environment caused by the trace amount of heavy metal chromium contained in the fingerprint-resistant paint in the prior art, and the problems of high-temperature yellowing, corrosion resistance and problems in the existing fingerprint-resistant paint. The problem of poor solvent resistance

Method used

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  • Highly-anticorrosive and chromium-free anti-fingerprint coating and preparation method thereof

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preparation example Construction

[0026] A kind of preparation method of high corrosion-resistant chrome-free anti-fingerprint coating of the present invention, comprises the following steps:

[0027] 1) Take deionized water, stir, and under stirring conditions, add epoxy acrylic resin, continue stirring to obtain mixture A;

[0028] 2) Under stirring conditions, slowly add silica sol and alkoxysilane to the mixture A obtained in step 1), and continue stirring to obtain mixture B;

[0029] 3) Under stirring conditions, add ethylene glycol, polytetrafluoroethylene wax, anti-corrosion additives, wetting agent and defoamer in sequence to the mixture B obtained in step 2), and continue stirring to obtain mixture C; 4) while Stirring, while filling, get anti-fingerprint paint.

[0030] Preferably, the stirring speeds in the step 1), the step 2), the step 3) and the step 4) are all 30-50r / min.

[0031] Further, the time for stirring in step 1) is 10-20 min, the time for stirring in step 2) is 20-60 min, and the ti...

Embodiment 1

[0033] A kind of preparation method of high corrosion-resistant chrome-free anti-fingerprint coating of the present invention, comprises the following steps:

[0034] 1) Take 110Kg of deionized water, add it to the stirring tank, start stirring, the stirring speed is 30r / min, under stirring condition, add 123Kg of silicone modified epoxy acrylate, continue stirring, the stirring speed is 30r / min, stir Time is 10min, obtains mixture A;

[0035] 2) Under the condition of stirring at a stirring speed of 30r / min, slowly add 80Kg of silica sol and 20Kg of alkoxysilane with a particle size of 10nm in the mixture A obtained in step 1), and continue stirring at a stirring speed of 30r / min. Stirring time was 20min to obtain mixture B;

[0036] 3) Under the stirring condition that the stirring speed is 30r / min, add ethylene glycol 20Kg, polytetrafluoroethylene wax 671 40Kg, anti-corrosion additive sodium molybdate 5Kg, wetting agent OP to the mixture B obtained in step 2). -91Kg and d...

Embodiment 2

[0039] A kind of preparation method of high corrosion-resistant chrome-free anti-fingerprint coating of the present invention, comprises the following steps:

[0040] 1) Take 305.2Kg of deionized water, add it to the stirring tank, start stirring, the stirring speed is 40r / min, under the stirring condition, add 40Kg of epoxy acrylic resin, continue stirring, the stirring speed is 40r / min, and the stirring time is 15min , to get mixture A;

[0041] 2) Under the condition of stirring at a stirring speed of 40r / min, slowly add 32Kg of silica sol and 4Kg of alkoxysilane to the mixture A obtained in step 1), and continue stirring at a stirring speed of 40r / min and a stirring time of 40min to obtain mixture B;

[0042] 3) Under the stirring condition that the stirring speed is 40r / min, add 4Kg of ethylene glycol, 12Kg of polytetrafluoroethylene wax, 2Kg of ammonium molybdate of anti-corrosion additive, wetting agent NP- 10 0.4Kg and defoamer SN-154 0.4Kg, continue to stir, the sti...

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Abstract

The invention discloses a highly-anticorrosive and chromium-free anti-fingerprint coating and a preparation method thereof, and belongs to the technical field of coatings. The anti-fingerprint coatingcomprises 10-50 wt% of epoxy acrylic resin, 8-20 wt% of silica sol, 1-10 wt% of alkoxysilane, 1-5 wt% of ethylene glycol, 3-10 wt% of polytetrafluoroethylene wax, 0.5-3 wt% of a corrosion inhibitor,0.1-1 wt% of a wetting agent, 0.1-1 wt% of a defoamer, and the balance of deionized water; and the corrosion inhibitor is any one or two of sodium molybdate and ammonium molybdate. The invention alsoprovides a preparation method of the anti-fingerprint coating. The addition of the epoxy acrylic resin and anticorrosive assistants improves the yellowing resistance, the corrosion resistance and thesolvent resistance of the anti-fingerprint coating; the action of the alkoxysilane improves the adhesion and the paint spreading property of the coating, and makes the coating contain no toxic heavy metals and have good fingerprint resistance; and the preparation method is simple, and is suitable for industrial production.

Description

technical field [0001] The invention belongs to the technical field of coatings, in particular to a high-corrosion-resistant chrome-free fingerprint-resistant coating and a preparation method thereof. Background technique [0002] In recent years, galvanized steel sheets have been widely used in industries such as home appliances, automobiles, office supplies, and toys. With the continuous improvement of people's quality of life, the products used are not only required to be aesthetically pleasing, but also environmentally friendly. Fingerprint-resistant steel plate is a high value-added surface treatment product. Compared with the general bare galvanized steel plate, it not only has fingerprint resistance, but also has corrosion resistance, electrical conductivity and repaintability. Today, the market demand for anti-fingerprint steel products is increasing day by day, which also promotes the research on anti-fingerprint processing technology and the development of new appl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/10C09D5/08C09D7/61C09D7/65
CPCC08K2201/011C09D5/08C09D163/10C09D7/61C09D7/65C08L27/18C08K3/36C08K5/053C08K3/24C08K3/28
Inventor 朱培礼黄聿川官晓龙
Owner 青岛海创化学品有限责任公司
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