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High-temperature resistant and strong corrosive resistant water-based baking varnish for metal and preparation method for baking varnish

A high-temperature-resistant, metal-based technology, which is applied in the field of high-temperature-resistant and strong-corrosion-resistant water-based baking varnishes for metals and its preparation, can solve problems such as waste of energy, poor high-temperature resistance of water-based baking varnishes, and environmental pollution, and achieve excellent physical and mechanical properties. Good adhesion and short construction process

Active Publication Date: 2012-08-01
GUANGZHOU JOINTAS CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So as to solve the problem of solvent-based baking varnish polluting the environment and wasting energy, and overcome the problem of poor high temperature resistance of water-based baking varnish

Method used

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  • High-temperature resistant and strong corrosive resistant water-based baking varnish for metal and preparation method for baking varnish
  • High-temperature resistant and strong corrosive resistant water-based baking varnish for metal and preparation method for baking varnish

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Under the rotating speed of 400r / min, in terms of mass parts, add 26 parts of tap water, 25 parts of modified water-soluble acrylic resin (RB-306, Rongbiao paint, Shunde District, Foshan City), 3 parts of cosolvent (ethylene glycol Butyl ether, Dow Chemical), 0.2 parts of wetting and dispersing agent (Orotan 731A, Rohm and Haas, USA) and 0.3 parts of wetting and dispersing agent (Hydropalat 3275, Shenzhen Haichuan Chemical Co., Ltd.), 0.2 parts of pH regulator (AMP95, Dow Chemical), 0.05 parts of defoamer (Foamex902W, TEGO company), after stirring for 5min, the rotating speed is adjusted to 1000r / min, and 10 parts of pigments (pearl luster powder, Huake pearlescent pigment) are added, after stirring for 20-30min; Reduce the speed to 400r / min, then add 0.05 parts of defoamer (Foamex 902W, TEGO company), 5 parts of adhesion promoter (POL-272, Shenzhen Meishimeike New Material Co., Ltd.), salt spray resistance additive 3 parts (ZT-719, Beijing Zhitu Chemical Co., Ltd.), 10...

Embodiment 2

[0047] Under the rotating speed of 500r / min, in terms of mass parts, add 22 parts of tap water, 25 parts of modified water-soluble acrylic resin (RB-306, Rongbiao paint, Shunde District, Foshan City), 3 parts of cosolvent (ethylene glycol Butyl ether, Dow Chemical), 0.2 part of wetting and dispersing agent (SN-5040, Shenzhen Haichuan Chemical Co., Ltd.) and 0.3 part of wetting and dispersing agent (Disperbyk180, BYK Company), 0.3 part of pH regulator (ammonia water, Dow Chemical ), 0.1 parts of defoamer (BYK-019, BYK company), after stirring for 5 minutes, adjust the speed to 1000r / min, add 12 parts of pigments (pearl powder, Huake pearl pigment), and stir for 20-30 minutes; Reduce to 400r / min, then add 0.1 part of defoamer (BYK-025, BYK company), 3 parts of adhesion promoter (WACH308, Hanyang Trading), 2 parts of salt spray resistance additive (ES-431, Guangzhou Fangjing Trading Co., Ltd.’s salt spray agent), 10 parts of amino resin (717, Ineos), 2 parts of cosolvent (n-butan...

Embodiment 3

[0050] Under the rotating speed of 600r / min, in terms of mass parts, add 14 parts of tap water, 20 parts of modified polyester resins (SKW001, Shanghai Chaoyu Chemical Materials Co., Ltd.), 3 parts of cosolvents (ethylene glycol, Dow Chemical), 0.3 parts of wetting and dispersing agent (Hydropalat 3275, Shenzhen Haichuan Chemical Co., Ltd.) and 0.3 parts of wetting and dispersing agent (Orotan 1288, Rohm and Haas, USA), 0.4 parts of pH regulator (AMP95, Dow Chemical) , 0.1 parts of defoamer (Defom W-0505, Deqian Chemical), after stirring for 5 minutes, adjust the speed to 1000r / min, add 15 parts of pigment (CR-826, Kemeiqi), and stir for 20-30 minutes; Reduce the speed to 400r / min, then add 0.1 part of defoamer (DefomW-0505, Deqian Chemical), 3 parts of adhesion promoter (WACH308, Hanyang Trading), 2 parts of salt spray resistance additive (ZT-719 , Beijing Zhitu Chemical Co., Ltd.), 10 parts of amino resin (072, BASF), 2 parts of cosolvent (alcohol ester 12, Dow Chemical) and...

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Abstract

The invention relates to high-temperature resistant and strong corrosive resistant water-based baking varnish for metal and a preparation method for the water-based baking varnish. The water-based baking varnish consists of the following raw materials: 40 to 60 percent of resin, 8 to 18 percent of amino resin, 1 to 5 percent of adhesion promoter, 8 to 15 percent of pigment, 1 to 3 percent of salt mist resistant aid, 0.2 to 0.5 percent of pH regulator, 0.1 to 0.5 percent of flatting agent, 0.2 to 0.8 percent of wetting dispersant, 0.1 to 0.2 percent of defoaming agent, 5 to 8 percent of cosolvent, and the balance of water. The volatile organic compound (VOC) content of the obtained water-based baking varnish is low; and the water is used for replacing an organic solvent and used as a thinning agent, so that the water-based baking varnish is nontoxic, odorless and environment-friendly, improves the working environment of construction personnel and protects the body health of the construction personnel. A prepared varnish film has good physical and mechanical properties, high temperature resistance and corrosion resistance, the adhesive force of the varnish film is level 0, the varnish film resists a high temperature of 200 DEG C for 4 hours and yellows lightly, and the salt mist resistance reaches 300h.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a water-based baking varnish for metal with high temperature resistance and strong corrosion resistance and a preparation method thereof. Background technique [0002] With the development of industry, the industrial paint market for metal protection and decoration also develops and grows accordingly. As a common industrial paint, baking varnish is widely used in machinery manufacturing, electromechanical and hardware industries. The coating film is bright, hard and has strong adhesion, and it has good protection and decoration for metals. At present, in the domestic baking varnish market, solvent-based baking varnishes are widely used. Baking varnishes using melamine resin as a crosslinking agent are widely used in light industrial machinery, household appliances, automobiles and other industrial sectors, and are also a major category of coating products. Plays an important ro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D167/00C09D161/20C09D161/32C09D7/12
Inventor 陈中华王玉琼陈海洪
Owner GUANGZHOU JOINTAS CHEM
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