Waterborne amino paint and preparation method thereof

A kind of amino baking paint, water-based amino resin technology, applied in the direction of coating, can solve the problem that solder paste cannot be wetted, and achieve the effect of reducing environmental pollution and harm to human body, excellent safety, and reducing photochemical pollution

Pending Publication Date: 2019-06-18
CHONGQING HAILIAN WATERBORNE COATING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide a water-based amino baking varnish and a preparation method thereof, which can be used on pen accessories containing solder paste to replace the original solvent-based paint with high VOC emissions, and realize Environmentally friendly coating in the 3C industry, and also solves the surface chemical problem that water-based coatings cannot wet solder paste

Method used

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  • Waterborne amino paint and preparation method thereof
  • Waterborne amino paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 to Embodiment 7

[0027] Examples 1 to 7 were prepared using the raw material components shown in Table 1.

[0028] Table 1: Example 1 to Example 7 ingredient list

[0029]

[0030] In all the above examples, the water-based acrylic resin comes from Guangzhou Huimai Industrial Co., Ltd., and the product number is RA-239.

[0031] In all the above examples, the water-based amino resin comes from allnex chemical’s partially methylated amino resin 325.

[0032] Above embodiment, in embodiment 1, coloring pigment is carbon black; Coloring pigment is the carbon black of 0.5kg and the titanium dioxide of 14.5kg in embodiment 2; Coloring pigment is the carbon black of 0.5kg and 5.5kg in embodiment 3 Phthalocyanine blue; Coloring pigment in embodiment 4 is carbon black; Coloring pigment is carbon black in embodiment 5; Coloring pigment is phthalocyanine green 6kg carbon black 0.5kg in embodiment 6; Coloring pigment is carbon black in embodiment 7 , In all the above examples, barium sulfate is dome...

Embodiment 1

[0049]In Example 1, the deionized water added in step 1. is 50% of the total amount of deionized water in this embodiment, and part of the alcohol-ether co-solvent is 55% of the total amount of alcohol-ether co-solvent; 10 minutes; in step ④, disperse for 5 minutes; in step ⑤, add dimethylethanolamine to adjust the pH value to 8, add a thickener to adjust the viscosity, and the viscosity is 195S at this time.

Embodiment 2

[0050] In Example 2, the deionized water added in step 1. is 55% of the total amount of deionized water in this embodiment, and some alcohol ether cosolvents are 60% of the total amount of alcohol ether cosolvents; 8 minutes; in step ④, disperse for 3 minutes; in step ⑤, add triethylolamine to adjust the pH value to 7, add a thickener to adjust the viscosity, and the viscosity is 40S at this time.

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Abstract

The invention discloses waterborne amino paint. The waterborne amino paint comprises, by weight percentage, 12-17% of deionized water, 35-40% of waterborne acrylic resin, 7-8% of waterborne amino resin, 2-15% of coloring pigment, 10-20% of talcum powder, 5-15% of barium sulfate, 0.5-3% of bentonite, 0.5-2% of fumed silica, 0.1-0.5% of thickening agent, 0.5-3% of dispersing agent, 0.1-1% of defoaming agent, 0.5-2% of wetting agent, 0.5-2% of leveling agent and 5-15% of alcohol ether type cosolvent. The waterborne amino paint has the advantages that the problem that waterborne paint cannot wet the surface of soldering paste, shrinkage cavities appear in the exterior, and adhesion is difficult, and workpiece reject ratio caused by the shrinkage cavities and poor adhesion can be reduced greatly; the waterborne amino paint is excellently safe, environmentally friendly and healthy.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a water-based amino baking varnish used for coating substrates containing solder paste in notebooks and accessories. Background technique [0002] At present, the coating market for notebook computers (referred to as "notebook") is mainly based on solvent-based coatings, including amino alkyd baking varnishes, polyester amino baking varnishes and acrylic amino baking varnishes and other mainstream amino baking varnishes. However, in recent years, environmental protection has been paid more and more attention by the society, the national environmental protection policy has become more and more strict, and relevant VOC control standards and related policies have been issued in various places. As a major VOC emitter, the coating industry will inevitably become the industry's concern The important point is that the development of the coatings industry is gradually biased towards env...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D161/32C09D7/61C09D7/20
Inventor 刘建忠黄河郑照伟魏林江
Owner CHONGQING HAILIAN WATERBORNE COATING
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