Mono-component aqueous metal baking paint and preparation method thereof

A single-component, water-based technology, applied in the field of coatings, can solve problems such as the reduction of organic volatile matter content, and achieve the effects of excellent water resistance, high hydroxyl value, and low baking temperature

Active Publication Date: 2009-11-11
GUANGZHOU JOINTAS CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its formula uses silicone-modified acrylic resin as the main film-forming substance. The coating has good hardness, flexibility, adhesion, high temperature resistance, salt spray resistance, and acid resistance, but the addition of co-solvent is 5-15%, which is not conducive to Reduction of VOC content

Method used

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  • Mono-component aqueous metal baking paint and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031]The formula of one-component water-based metal baking coating is: tap water 44.65Kg (44.65%), water-based acrylic modified polyester resin (HD-MB019, Beijing Jinhuili Applied Chemical Products Co., Ltd.) 30.48Kg (30.48%), amino resin (Luwipal 072, BASF Applied Chemicals Co., Ltd.) 7.62Kg (7.62%), rutile titanium dioxide (CR-826, Kemeiji Chemical Company) 11.88Kg (11.88%), iron oxide red (ZH162, Guangzhou Crystal Color Pigment Co., Ltd.) 2.86Kg (2.86%), amine regulator (DMEA, BASF Applied Chemicals Co., Ltd.) 1.2 (1.2%), wetting and dispersing agent A (X-405, Dow Chemical Company) 0.19Kg (0.19%), Wetting and dispersing agent B (731A, U.S. Rohm and Haas Company) 0.19Kg (0.19%), defoamer (810, Dego Company) 0.03Kg (0.03%), thickener (112, Ciba Company) 0.5Kg (0.5%), leveling agent (3580, EFKA company) 0.4Kg (0.4%)

[0032] Preparation:

[0033] 1) Under the condition of stirring at a speed of 500r / min, according to the total weight of the formula, add 30% of tap water, 0....

Embodiment 2

[0036] The formula of one-component water-based metal baking coating is: tap water 41.27Kg (41.27%), water-based acrylic modified polyester resin (HD-MB019, Beijing Jinhuili Applied Chemical Products Co., Ltd.) 28Kg (28%), amino resin ( Luwipal 072, BASF Applied Chemicals Co., Ltd.) 7.2Kg (7.2%), rutile titanium dioxide (CR-826, Kemeiji Chemical Company) 21Kg (21%), amine regulator (DMEA, BASF Applied Chemicals Co., Ltd.) 1.12 (1.2%), wetting and dispersing agent A (X-405, Dow Chemical Company) 0.2Kg (0.2%), wetting and dispersing agent B (731A, U.S. Rohm and Haas Company) 0.2Kg (0.2%), disinfectant Foaming agent (810, Dego Company) 0.01Kg (0.01%), thickener (WT-105A, Deqian Chemical Co., Ltd.) 0.8Kg (0.8%), leveling agent (3580, EFKA Company) 0.2Kg (0.2%) )

[0037] Preparation:

[0038] 1) Under the condition of stirring at 400r / min, according to the total weight of the formula, add 30% of tap water, 0.72% of amine regulator, 0.2% of wetting and dispersing agent A, 0.2% of...

Embodiment 3

[0041] One-component water-based metal baking paint formula is: tap water 51.4Kg (51.4%), water-based acrylic modified polyester resin (HD-MB019, Beijing Jinhuili Applied Chemical Products Co., Ltd.) 32Kg (32%), amino resin ( Luwipal 072, BASF Applied Chemical Co., Ltd.) 8Kg (8%), iron oxide red (4110, Bayer company) 2.5Kg (2.5%), iron oxide black (4330, Bayer company) 2.5Kg (2.5%), amine regulator (DMEA, BASF Applied Chemical Co., Ltd.) 1.36 (1.36%), wetting and dispersing agent A (X-405, Dow Chemical Company) 0.15Kg (0.15%), wetting and dispersing agent B (731A, U.S. Rohm and Haas Company) 0.19Kg (0.19%), defoamer (805, Dego company) 0.1Kg (0.1%), thickener (112, Ciba company) 1.2Kg (1.2%), leveling agent (3580, EFKA company )0.6Kg (0.6%)

[0042] Preparation:

[0043] 1) Under the condition of stirring at 600r / min, according to the total weight of the formula, add 30% of tap water, 0.72% of amine regulator, 0.15% of wetting and dispersing agent A, 0.19% of wetting and dis...

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Abstract

The invention discloses a mono-component aqueous metal baking paint and a preparation method thereof. The mono-component aqueous metal baking paint consists of the following components by weight: 40 to 57 percent of tap water, 28 to 34 percent of aqueous acrylic modified polyester resin, 7 to 8.5 percent of amino resin, 1.12 to 1.36 percent of amine modifier, 0.1 to 0.3 percent of wetting dispersing agent A, 0.1 to 0.3 percent of wetting dispersing agent B, 0.01 to 0.1 percent of defoaming agent, 0.5 to 1.2 percent of thickening agent, and 0.2 to 0.6 percent of levelling agent. The mono-component aqueous metal baking paint uses water as a solvent without adding an alcohol / ether cosolvent so that environmental protection is excellent; because of mono-component, the construction is simple and convenient, and the performance is stable; and a paint film is plumpy, the luster is high, the mechanical property is excellent, and the adhesive force is good. The mono-component aqueous metal baking paint is applicable to metal surface corrosion protection and decoration, and can be used as a finishing paint, a priming paint or a coating varnish; and when used for bottom surface integral coating, the mono-component aqueous metal baking paint still has excellent surface effect and protective action.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a single-component water-based metal baking coating and a preparation method thereof. Background technique [0002] At present, the baking varnish is mainly based on solvent-based amino baking varnish, which is widely used in the surface coating of trucks, cars, bicycles, sewing machines, refrigerators and washing machines. The solvent-based baking varnish prepared by the patent CN 1485386A has high gloss, good flexibility and short curing time, but the solvent content is as high as 40%. Among them, the solvents xylene and ethylene glycol butyl ether have relatively harmful effects on the human body. With the improvement of environmental protection requirements, more and more researches are focused on the development of water-based baking varnishes. Most of the existing water-based amino baking coatings use water-based acrylic resin or modified acrylic resin as the main film-fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/06C09D161/32
Inventor 陈中华陈文君陈海洪余飞
Owner GUANGZHOU JOINTAS CHEM
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