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Waterborne organic-inorganic hybrid anticorrosion coating and its application method

An anti-corrosion coating, organic technology, applied in anti-corrosion coatings, coatings, devices for coating liquids on surfaces, etc., can solve the problems of loss of corrosion inhibition ability, insufficient corrosion resistance, insufficient film strength, etc. The effect of layer longevity requirements, good corrosion resistance, good substrate adhesion

Active Publication Date: 2019-03-26
湖南天氟新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Hexavalent chromium passivation treatment is subject to more and more restrictions due to environmental pollution and other issues
2) Using pure organic coating without adding anti-rust agent, the corrosion resistance is not enough, especially the corrosion resistance after processing
3) The method of chemical conversion treatment liquid is used for anticorrosion, and the strength of the coating film is insufficient and the adhesion is weak
Therefore, there are the following defects in the related art: due to factors such as insufficient paint film strength, weak adhesion, and insufficient corrosion resistance, etc.
After processing, the coating will be damaged, peeled off, etc., resulting in a decrease in anti-corrosion performance or loss of corrosion inhibition ability

Method used

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  • Waterborne organic-inorganic hybrid anticorrosion coating and its application method
  • Waterborne organic-inorganic hybrid anticorrosion coating and its application method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A water-based organic-inorganic hybrid anti-corrosion coating, which consists of the following components in parts by weight: 90 parts of nano-material modified acrylate composite emulsion, 10 parts of ammonium fluorozirconate, 15 parts of sodium molybdate, titanate coupling agent 10 parts, methanol 5 parts, water 32 parts, defoamer (BYK022) 1 part, PH regulator 1.8 parts, leveling agent (BYK331) 0.3 parts, curing agent 7 parts.

[0037] The preparation of nanomaterial modified acrylate composite emulsion in the present embodiment is as follows:

[0038] 1) Formula (parts by weight):

[0039] 1 part of N,N dimethylbisacrylamide, 1 part of polyethylene glycol dimethacrylate, 2 parts of acrylamide, 35 parts of styrene, 35 parts of butyl acrylate, 15 parts of hydroxyethyl methacrylate, 5 parts of acrylic acid, 1.5 parts of allyl glycidyl ether, 25 parts of methyl methacrylate, 15 parts of n-butyl methacrylate, 14 parts of dodecafluoroheptyl methacrylate, 20 parts of silic...

Embodiment 2

[0051] A water-based organic-inorganic hybrid anti-corrosion coating, which consists of the following components in parts by weight: 90 parts of nano-material modified acrylate composite emulsion, 10 parts of ammonium fluorozirconate, 15 parts of sodium molybdate, titanate coupling agent 10 parts, methanol 5 parts, water 32 parts, defoamer (BYK022) 1 part, pH regulator 2.4 parts, leveling agent (BYK331) 0.3 parts, curing agent 7 parts.

[0052] The preparation of nanomaterial modified acrylate composite emulsion in the present embodiment is as follows:

[0053] 1) Formula (parts by weight):

[0054] 1 part of N,N dimethylbisacrylamide, 1 part of polyethylene glycol dimethacrylate, 2 parts of acrylamide, 35 parts of styrene, 35 parts of butyl acrylate, 15 parts of hydroxyethyl methacrylate, 5 parts of acrylic acid, 1.5 parts of allyl glycidyl ether, 25 parts of methyl methacrylate, 15 parts of n-butyl methacrylate, 14 parts of dodecafluoroheptyl methacrylate, 25 parts of alumi...

Embodiment 3

[0059] A water-based organic-inorganic hybrid anti-corrosion coating, which consists of the following components in parts by weight: 90 parts of nano-material modified acrylate composite emulsion, 10 parts of ammonium fluorozirconate, 15 parts of sodium molybdate, titanate coupling agent 10 parts, methanol 5 parts, water 32 parts, defoamer (BYK022) 1 part, PH regulator 1.8 parts, leveling agent (BYK331) 0.3 parts, curing agent 5 parts.

[0060] The preparation of nanomaterial modified acrylate composite emulsion in the present embodiment is as follows:

[0061] 1) formula (parts by weight):

[0062] 1 part of N,N dimethylbisacrylamide, 1 part of polyethylene glycol dimethacrylate, 2 parts of acrylamide, 35 parts of styrene, 35 parts of butyl acrylate, 15 parts of hydroxyethyl methacrylate, 5 parts of acrylic acid, 1.5 parts of allyl glycidyl ether, 25 parts of methyl methacrylate, 15 parts of n-butyl methacrylate, 14 parts of dodecafluoroheptyl methacrylate, 15 parts of nano-...

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Abstract

The invention provides a water-based organic-inorganic hybrid anticorrosive coating and an application method thereof. The water-based organic-inorganic hybrid anticorrosive coating is prepared from components in parts by weight as follows: 1-50 parts of a nano-material modified acrylic ester composite emulsion, 1-20 parts of a curing agent, 0-30 parts of inorganic salt, 0.001-1.00 part of an auxiliary, 1-20 parts of a solvent and the balance of deionized water. Compared with the prior art, the water-based organic-inorganic hybrid anticorrosive coating has the beneficial effects as follows: 1, functional organic resin is designed and synthesized and is matched with inorganic anticorrosive salt very well, and a good self-repairing function of the coating is realized; 2, excellent adhesion force is provided, and the coating has good recoatability; the organic-inorganic hybrid coating has good base material adhesion force, and a requirement for a long-term effect of the coating is met; 3, under the conditions of deformation, damage and heated baking of the surface of a base material after post-processing, good anticorrosive performance can still be provided.

Description

【Technical field】 [0001] The invention relates to the technical field of anti-corrosion coatings, in particular to a water-based organic-inorganic hybrid anti-corrosion coating and its application method. 【Background technique】 [0002] The use value of the metal surface is greatly affected by corrosion. Anti-corrosion treatment is very important. Among them, anti-corrosion paint coating is a widely used measure. There are usually two types of anti-corrosion paint: one is an inorganic treatment agent, that is, a chemical conversion treatment liquid; the other is an inorganic treatment agent. The first is an organic coating, that is, a primer composed of pure organic resins. Hexavalent chromium passivation treatment is subject to more and more restrictions due to environmental pollution and other issues. It is very urgent to use an inorganic treatment agent that is non-polluting to the environment to form a conversion film to provide anti-corrosion performance. In the relat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D151/10C09D125/14C09D5/08C09D7/61C08F292/00C08F222/38C08F222/14C08F220/56C08F212/08C08F220/18C08F220/28C08F220/06C08F220/14C08F220/22C08F216/14B05D7/14
CPCB05D7/14C08F212/08C08F220/18C08F220/1804C08F292/00C08K3/08C08K3/24C08K3/28C08K3/36C08K2003/0812C08K2201/011C09D5/08C09D7/61C09D151/10
Inventor 刘天成董其宝樊孝红胡沩
Owner 湖南天氟新材料有限公司
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