Anticorrosion paint primer-finish composition

A technology of anti-corrosion coatings and compositions, applied in anti-corrosion coatings, polyurea/polyurethane coatings, coatings, etc., can solve the problems of insufficient chemical resistance and affecting curing speed, etc., achieve excellent construction performance, prevent internal stress corrosion, penetration The effect of wetting solution

Active Publication Date: 2014-10-15
江苏国松特种涂料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of polyaspartic acid in coating compositions often brings some disadvantages, including insufficient chemical resistance, and the choice of polyaspartic acid can affect the speed of cure

Method used

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  • Anticorrosion paint primer-finish composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1）

[0041] (1) Primer preparation A component: weigh 2.2 kg of hydroxyl acrylic resin; 0.46 kg of polyaspartic acid resin; 0.05 kg of dispersant; 0.5 kg of washing water, polymethacrylate: xylene volume ratio 1:1 mixture; anti-settling agent 0.1 kg organic bentonite and gas phase method sio 2 0.05 kg each; 0.06 kg leveling agent; 2 kg antirust pigment; 0.1 kg coloring pigment; 1 kg titanium dioxide; 0.4 kg polymethacrylate; 1 kg 1250 mesh talcum powder; 0.6 kg was emulsified by an emulsifier, and then stirred evenly by a high-speed mixer to obtain component A.

[0042] Primer B component aliphatic polyisocyanate 1kg is Bayer N3390.

[0043] (2) Component A of topcoat: weigh 3 kg of hydroxyl acrylic resin; 1 kg of polyaspartic acid resin; 0.05 kg of dispersant; : 1 mixture; anti-settling agent 0.1 kg is organic bentonite and gas phase method sio 2 0.05 kg each; 0.15 kg leveling agent; 0.1 kg polymethacrylate; 3 kg titanium dioxide; 0.5 kg 1250 mesh sericite; 0.8 kg barium sulfat...

Embodiment 2）

[0046] (1) Primer preparation A component: weigh 2.2 kg of hydroxyl acrylic resin; 0.46 kg of polyaspartic acid resin; 0.05 kg of dispersant; 0.5 kg of washing water, polymethacrylate: xylene volume ratio 1:1 mixture; anti-settling agent 0.1 kg organic bentonite and gas phase method sio 20.05 kg each; 0.06 kg leveling agent; 2 kg antirust pigment; 0.1 kg coloring pigment; 1 kg titanium dioxide; 0.4 kg polymethacrylate; 1 kg 1250 mesh talcum powder; 0.6 kg; when the temperature is low in autumn and winter, component A also includes 1.7 parts of catalyst, including organotin catalyst 1%TT 0.1 kg from Deqian Company, modified amine catalyst Shanghai Huarong Chemical Co., Ltd. 5%PP 0.07 kg, passed through an emulsifier After emulsification, stir evenly with a high-speed mixer to obtain component A.

[0047] Primer B component aliphatic polyisocyanate 1kg is Bayer N3390.

[0048] (2) Component A of topcoat: weigh 3 kg of hydroxyacrylic resin; 1 kg of polyaspartic acid resin; 0.05...

Embodiment 3）

[0051] (1) Primer preparation A component: weigh 1.5 kg of hydroxyl acrylic resin; 0.2 kg of polyaspartic acid resin; 0.02 kg of dispersant; 0.2 kg of washing water, polymethacrylate: xylene volume ratio 1:1 mixture; anti-sedimentation agent 0.05kg organic bentonite and gas phase method sio 2 0.025 kg each; 0.03 kg leveling agent; 1 kg antirust pigment; 0.05 kg coloring pigment; 0.55 kg titanium dioxide; 0.4 kg polymethacrylate; 0.6 kg was emulsified by an emulsifier, and then stirred evenly by a high-speed mixer to obtain component A.

[0052] Primer B component aliphatic polyisocyanate 1kg is Bayer N3390.

[0053] (2) Component A of topcoat: weigh 1kg of hydroxyl acrylic resin; 0.5kg of polyaspartic acid resin; 0.01 kg of dispersant; 1 mixture; anti-sedimentation agent 0.06 kg is organic bentonite and gas phase method sio 2 Each 0.03 kg; leveling agent 0.012 kg; solvent polymethacrylate 0.1 kg; titanium dioxide 1 kg; filler 1250 mesh sericite 0.6kg; filler barium sulfate ...

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Abstract

The invention relates to an anticorrosion paint primer composition. The anticorrosion paint primer composition comprises a component A and a component B. The component A comprises, by weight, 15-30 parts of hydroxy acrylic resin, 2-10 parts of polyaspartic acid resin, 10-50 parts of an antirust pigment, 0.5-3 parts of a coloring pigment, 5.5-23 parts of titanium dioxide, 0.1-2 parts of a dispersant as an assistant, 1-10 parts of a machine washing liquid as an assistant, 0.1-2 parts of an anti-settling agent as an assistant, 0.1-1 part of a leveling agent as an assistant, 1-10 parts of a solvent, and 10-30 parts of a filler. The component B comprises 5-30 parts of aliphatic polyisocyanate. The anticorrosion paint primer composition has a tridimensional net structure, has ultra-strong resistance to acid, alkali and salt chemical products by use of a carbamido group, has excellent ultraviolet resistance and outdoor performances by accurate control of a ratio of all the ingredients, solves the problem that carbamido paint construction is difficult, does not need special-purpose equipment, is suitable for routine construction and has excellent workability.

Description

technical field [0001] The invention relates to a coating composition, in particular to a primer and topcoat composition for anti-corrosion coatings. Background technique [0002] Before and after World War II, with the emergence of a series of high polymers such as epoxy resin, chlorinated rubber resin, alkyd resin, and phenolic resin, the types and properties of heavy-duty anti-corrosion coatings have undergone qualitative changes. The corresponding anti-corrosion theory and Construction technology has also been fully developed. [0003] In the past 30 years, along with the process of my country's reform and opening up, my country's heavy-duty anti-corrosion coatings have also achieved full development. It seems stretched, so it is still important to develop a coating with strong applicability, high weather resistance and chemical resistance! [0004] At present, the main types of heavy-duty anti-corrosion coatings are as follows: [0005] Chlorinated polymers are mainly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D175/02C09D7/12C09D5/08
Inventor 周伟松曹强
Owner 江苏国松特种涂料有限公司
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