Nano-reinforced water-based acrylic modified epoxy bottom surface integrated anti-corrosion baking paint coating and preparation method thereof

A water-based acrylic and modified technology, used in the field of coatings, can solve the problems of poor solvent resistance and decoration, environmental and human harm, and achieve the effect of reducing construction technology, non-yellowing coating film, and high adhesion

Inactive Publication Date: 2014-10-15
上海暄洋化工材料科技有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Patent CN101864236A discloses a water-based acrylic modified epoxy ester bottom-surface integrated anti-corrosion baking paint. A water-based acrylic modified epoxy ester resin is used to prepare an anti-corrosion baking paint. Its anti-corrosion, chemical resistance, solvent resistance and decorative properties are not as good as The coating prepared by water-based epoxy resin, and its film formation also needs to add 1-3 parts of drier, the drier is one or more of cobalt isooctanoate, cobalt naphthenate, zinc naphthenate, containing Heavy metals, harmful to the environment and human body

Method used

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  • Nano-reinforced water-based acrylic modified epoxy bottom surface integrated anti-corrosion baking paint coating and preparation method thereof
  • Nano-reinforced water-based acrylic modified epoxy bottom surface integrated anti-corrosion baking paint coating and preparation method thereof
  • Nano-reinforced water-based acrylic modified epoxy bottom surface integrated anti-corrosion baking paint coating and preparation method thereof

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preparation example Construction

[0029] The purpose of the present invention is to provide a nano-reinforced water-based acrylic modified epoxy bottom surface that is easy to use, beneficial to environmental protection, excellent in mechanical properties, excellent in corrosion resistance, good in decoration, and capable of fast curing (only 30s at 220°C) An all-in-one anti-corrosion baking varnish coating and a preparation method thereof. The present invention improves the prior art, and provides a water-based acrylic modified epoxy bottom surface integrated anti-corrosion baking varnish coating, which comprises the following raw material components in terms of weight percentage: 30-50% of water-based acrylic modified epoxy emulsion, Amino resin 3-7%, amine regulator 0.3-0.6%, water 15-35%, cosolvent 0-6%, pigment 15-30%, anti-flash rust agent 0.3-0.6%, salt spray resistance 2-5% %, wetting and dispersing agent 0.3-0.5%, defoamer 0.3-0.5%, leveling agent 0.3-0.5% and thickener 0.4-1.1%

[0030] Each compone...

Embodiment 1

[0055] Embodiment 1: Synthetic method of water-based acrylic acid modified epoxy emulsion

[0056] The formula of water-based acrylic modified epoxy emulsion is:

[0057] Epichlorohydrin 29.4kg (29.4%)

[0058] Bisphenol A46.2kg (46.1%)

[0059] Butyl acrylate 10kg (10%)

[0060] Methyl methacrylate 10kg (10%)

[0061] Dimethylethanolamine vinylbenzenesulfonate 1.2kg (1.2%)

[0062] Styrene 3kg (3%)

[0063] Initiator Epoxy-M 0.3kg (0.3%)

[0064] Preparation:

[0065] (8) Take 0.3% initiator, vacuumize at 0-5° C.-fill with nitrogen for 10 cycles, and seal with nitrogen;

[0066] (9) Add 2% styrene and 10% butyl acrylate, mix and stir, and irradiate for 1 hour with a 150W ultraviolet lamp (200-400nm) broad band under vertical irradiation at a distance of 10cm;

[0067] (10) Add 10% methyl methacrylate and irradiate for 1 hour;

[0068] (11) Add 1.2% vinylbenzenesulfonic acid dimethylethanolamine salt (the molar ratio of vinylbenzenesulfonic acid and dimethylethanolami...

Embodiment 2

[0076] The formula of one-component water-based acrylic modified epoxy bottom-surface-integrated anti-corrosion baking paint is:

[0077] Water-based acrylic modified epoxy emulsion (self-made) 45kg (45%)

[0078] Amino resin (Cymel303, cyanotech Co., Ltd.) 5.4kg (5.4%)

[0079] Amine regulator (DMEA, BASF Applied Chemicals Co., Ltd.) 0.5kg (0.5%)

[0080] Tap water 20kg (20%)

[0081] Cosolvent (benzyl alcohol, Shenzhen Jiadida Chemical Co., Ltd.) 3kg (3%)

[0082] Wetting and dispersing agent (PE-100, Shenzhen Haichuan Chemical Co., Ltd.) 0.4kg (0.4%)

[0083] Defoamer (BYK-020, BYK Chemical Company) 0.3kg (0.3%)

[0084] Leveling agent (Levaslip W-409, Elements Special Chemicals) 0.3kg (0.3%)

[0085] Thickener (TT-935, Rohm and Haas Co., Ltd.) 0.6kg0.6%)

[0086] Anti-flash rust agent (CT-08 of Shanghai Citong New Material Company) 0.5kg (0.5%)

[0087] Salt spray resistance agent (CTP-606 of Shanghai Citong New Material Co., Ltd.) 3kg (3%)

[0088] Iron oxide red ...

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Abstract

The invention provides an acrylic acid modified epoxy primer-topcoat anticorrosion paint coating and a preparation method thereof. The coating comprises, by weight, 30-50% of an aqueous acrylic acid modified epoxy emulsion, 3-7% of an amino resin, 0.3-0.6% of an amine regulator, 15-35% of water, 0-6% of a cosolvent, 15-30% of a pigment, 0.3-0.6% of a flash rust prevention agent, 2-5% of a salt spray resisting agent, 0.3-0.5% of a wetting dispersant, 0.3-0.5% of an antifoaming agent, 0.3-0.5% of a leveling agent, and 0.4-1.1% of a thickener. The coating of the invention, which is simple and fast to operate and can be directly diluted with water, can be sprayed, and also can be dip-coated. The baking time is fast to 30s (the baking temperature is maintained at 220DEG C), and the resulting film can be completely solidified and there is no yellow stain under the baking conditions. The coating of the invention can satisfy rapid automated coating production line requirements.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to a nano-reinforced water-based acrylic modified epoxy bottom-surface-integrated anti-corrosion baking varnish coating and a preparation method thereof. Background technique [0002] At present, anti-corrosion baking varnish is mainly based on solvent-based anti-corrosion baking varnish, which contains a large amount of organic solvents, such as xylene, ethylene glycol butyl ether, etc., which are harmful to the environment and human body, and meet the requirements of modern society for energy conservation and environmental protection. contrary to. With the improvement of environmental protection requirements, more and more researches are focused on the development of water-based anti-corrosion baking paint. Most of the current water-based anti-corrosion baking paints are divided into two types: primers and topcoats. They should be applied separately during painting. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D133/12C09D5/08C08G59/06C08F220/14C08F220/18C08F212/08
Inventor 张欢弟汪国庆汪培庆
Owner 上海暄洋化工材料科技有限公司
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