Primer-topcoat waterborne coating and preparation method thereof

A water-based coating and bottom surface technology, applied in anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of complex coating process and poor corrosion resistance, and achieve enhanced internal structure, good adhesion and high hardness. Effect

Inactive Publication Date: 2019-06-21
HEBEI CHENYANG INDAL & TRADE GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of complex coating process and poor corrosion resistance of the special water-based paint for vehicle

Method used

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  • Primer-topcoat waterborne coating and preparation method thereof
  • Primer-topcoat waterborne coating and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0045] An embodiment of the present invention provides a bottom-surface-in-one water-based coating, which includes the following raw material components in mass percentage: 35% epoxy ester resin, 14% epoxy-modified acrylic resin, 0.3% defoamer, and 0.3% dimethylethanolamine , dispersant 2.5%, aluminum trimer metaphosphate 5%, zinc silicate 3%, zinc aluminum phosphate 3%, superfine barium sulfate 6%, titanium dioxide 15%, substrate wetting agent 0.6%, thickener 2 %, anti-settling agent 1%, anti-flash rust agent 0.4%, ultraviolet absorber 1%, dipropylene glycol butyl ether 2%, drier 0.6% and deionized water 8.3%.

[0046] The epoxy ester resin is the water-based epoxy ester resin produced by Changzhou Guangshu Chemical Technology Co., Ltd.; the epoxy-modified acrylic resin is the water-based epoxy-modified acrylic emulsion produced by Wuxi Diai Epoxy Co., Ltd.; The defoamer is a mixture of 941PL pioneered by France and BYK-028 by BYK, wherein the mass ratio of 941PL and BYK-028 ...

Embodiment 2

[0052] An embodiment of the present invention provides a water-based coating with a bottom surface, which includes the following raw material components in mass percentage: 30% epoxy ester resin, 11% epoxy-modified acrylic resin, 0.3% defoamer, and 0.2% dimethylethanolamine , dispersant 3%, aluminum trimer metaphosphate 6%, zinc silicate 4%, zinc aluminum phosphate 2%, calcium silicate 6%, carbon black 16%, superfine barium sulfate 6%, substrate wetting agent 1 %, thickener 1%, anti-settling agent 0.5%, anti-flash rust agent 0.2%, ultraviolet absorber 2%, dipropylene glycol butyl ether 3.4%, drier 0.4% and deionized water 7%.

[0053] The grades of the above-mentioned components are the same as in Example 1, except that the defoamer is a mixture of 941PL pioneered by France and BYK-028 of BYK, wherein the mass ratio of 941PL and BYK-028 is 1:0.8 The dispersant is AFCONA4560; the substrate wetting agent is a mixture of TEGO-100 of Tego and BYK-331 of BYK, wherein the mass ratio...

Embodiment 3

[0059] An embodiment of the present invention provides a water-based coating with a bottom surface, which includes the following raw material components in mass percentage: 32% epoxy ester resin, 17% epoxy-modified acrylic resin, 0.3% defoamer, and 0.2% dimethylethanolamine , dispersant 2.8%, aluminum trimer metaphosphate 4%, zinc silicate 2%, zinc aluminum phosphate 4%, superfine barium sulfate 4%, carbon black 16%, substrate wetting agent 0.6%, thickener 1 %, anti-settling agent 0.5%, anti-flash rust agent 0.3%, ultraviolet absorber 1.5%, dipropylene glycol butyl ether 5%, drier 0.3% and deionized water 8.5%.

[0060] The grades of the above-mentioned components are the same as in Example 1, except that the defoamer is a mixture of 941PL pioneered by France and BYK-028 of BYK, wherein the mass ratio of 941PL and BYK-028 is 1:0.9 The dispersant is AFCONA4560; the substrate wetting agent is a mixture of TEGO-100 of Tego and BYK-331 of BYK, wherein the mass ratio of TEGO-100 an...

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Abstract

The invention discloses a primer-topcoat waterborne coating and a preparation method thereof. The primer-topcoat waterborne coating is prepared from components as follows: 30%-40% of epoxy ester resin, 10%-20% of epoxy modified acrylic resin, 0.3%-0.4% of a defoaming agent, 0.2%-0.4% of an organic amine neutralizer, 2%-3% of a dispersing agent, 30%-40% of pigment and filler, 0.5%-1% of a base material wetting agent, 1%-2% of a thickening agent, 0.5%-1% of an anti-settling agent, 0-0.5% of a rust-proof assistant, 1%-3% of an ultraviolet light absorber, 3%-5% of a cosolvent, 0.3%-0.6% of a drying catalyst and 7%-10% of deionized water. The prepared primer-topcoat waterborne coating is high in drying speed, high in hardness and good in adhesion and has good corrosion resistance, the system contains no heavy metals and is low in VOC content, and the primer-topcoat waterborne coating is particularly suitable for axle surface decoration protection, meets the demand of a client for corrosionresistance of a base material and meets the demand of the client for base material surface decoration.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a bottom-surface-in-one water-based coating and a preparation method thereof. Background technique [0002] At present, there are mainly two kinds of traditional anti-corrosion coating systems in China, which are primer + primer + top coat composite anti-corrosion coating system or primer + top coat composite anti-corrosion coating system. However, these two coating processes are complex, with long construction period and high cost, and it is easy to cause poor compatibility of the entire coating system, resulting in a decline in the performance of the entire coating. Water-based primer and topcoat is a kind of water-based paint that combines the primer and topcoat into one, which has the characteristics of both primer and topcoat. The energy consumption of the coating process and the cost of coating construction are greatly improved, and the economic benefits are improved. At ...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D133/00C09D5/08C09D7/63
Inventor 马春福周泽钱董立志楚会来
Owner HEBEI CHENYANG INDAL & TRADE GROUP CO LTD
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