Self-cleaning fluorosilicone-modified acrylic acid cathode electrophoresis paint and preparation method thereof

A cathodic electrophoretic coating and fluorine-silicon modification technology, which is applied in electrophoretic coatings, polyurea/polyurethane coatings, coatings, etc., can solve the problems of increased cleaning costs and high pollution on the product surface, and achieve convenient coating and smooth coating. Excellent liquid stability and improved stain resistance

Active Publication Date: 2013-10-02
HAOLISEN COATING SHANGHAI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the extension of the service time of the painted products, the surface of the products will be more polluted, and the cleaning cost will n

Method used

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  • Self-cleaning fluorosilicone-modified acrylic acid cathode electrophoresis paint and preparation method thereof
  • Self-cleaning fluorosilicone-modified acrylic acid cathode electrophoresis paint and preparation method thereof
  • Self-cleaning fluorosilicone-modified acrylic acid cathode electrophoresis paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 1) The formula of the semi-blocked aliphatic isocyanate modified fluorine-containing silicon cationic acrylic resin:

[0029]

[0030] Add methyl ethyl ketone and hexamethylene diisocyanate into a reaction vessel with a stirrer and a condenser according to the formula amount, blow nitrogen gas, raise the temperature to 75°C, add ethylene glycol monoethyl ether dropwise, and drop it in 1 hour. After 2 hours of heat preservation, the temperature was lowered to below 45°C and the material was discharged to obtain a semi-blocked aliphatic isocyanate, which was put into a desiccator for later use. Dimethylaminoethyl methacrylate, hydroxyethyl methacrylate, methyl methacrylate, styrene, n-butyl acrylate, γ-methacryloxypropyltrimethoxysilane, methyl Tridefluorooctyl acrylate and benzoyl peroxide are mixed evenly for use, which is called mixed solution 1; azobisisobutyronitrile and 1 part of cyclohexanone are mixed evenly for use, called mixed solution 2 . Add methyl isobu...

Embodiment 2

[0040] 2) The formula of the semi-blocked aliphatic isocyanate modified fluorine-containing silicon cationic acrylic resin:

[0041]

[0042]

[0043] Add methyl ethyl ketone and hexamethylene diisocyanate into a reaction vessel with a stirrer and a condenser according to the formula amount, blow nitrogen gas, raise the temperature to 75°C, add ethylene glycol monoethyl ether dropwise, and drop it in 1 hour. After 2 hours of heat preservation, the temperature was lowered to below 45°C and the material was discharged to obtain a semi-blocked aliphatic isocyanate, which was put into a desiccator for later use. Dimethylaminoethyl methacrylate, hydroxyethyl methacrylate, methyl methacrylate, styrene, n-butyl acrylate, γ-methacryloxypropyltrimethoxysilane, methyl Tridefluorooctyl acrylate and benzoyl peroxide are mixed evenly for use, which is called mixed solution 1; azobisisobutyronitrile and 1 part of cyclohexanone are mixed evenly for use, called mixed solution 2 . Add ...

Embodiment 3

[0053] 3) The formula of the semi-blocked aliphatic isocyanate modified fluorine-containing silicon cationic acrylic resin:

[0054]

[0055]

[0056] Add methyl ethyl ketone and hexamethylene diisocyanate into a reaction vessel with a stirrer and a condenser according to the formula amount, blow nitrogen gas, raise the temperature to 75°C, add ethylene glycol monoethyl ether dropwise, and drop it in 1 hour. After 2 hours of heat preservation, the temperature was lowered to below 45°C and the material was discharged to obtain a semi-blocked aliphatic isocyanate, which was put into a desiccator for later use. Dimethylaminoethyl methacrylate, hydroxyethyl methacrylate, methyl methacrylate, styrene, n-butyl acrylate, γ-methacryloxypropyltrimethoxysilane, methyl Tridefluorooctyl acrylate and benzoyl peroxide are mixed evenly for use, which is called mixed solution 1; azobisisobutyronitrile and 1 part of cyclohexanone are mixed evenly for use, called mixed solution 2 . Add ...

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Abstract

The invention relates to a self-cleaning fluorosilicone-modified acrylic acid cathode electrophoresis paint and a preparation method thereof. The paint is prepared from a fluorosilicone-modified acrylic acid emulsion and a nano silicon dioxide modified color paste in a ratio of 9:1, wherein the fluorosilicone-modified acrylic acid emulsion is prepared by stirring a semiclosed aliphatic isocyanate-modified fluorosilicone-containing cationic acrylic resin, a neutralizer and deionized water at high speed; and the nano titanium dioxide powder modified color paste is prepared by grinding a semiclosed aliphatic isocyanate-modified fluorosilicone-containing cationic acrylic resin, a surfactant and deionized water at high speed in a grinding tank. The paint provided by the invention has the advantages of high self stability and high tank liquor stability; and after the electrophoretic coating, the coating has the advantages of flat appearance, favorable mechanical properties, excellent acid and alkali resistance, high hydrophobicity and favorable pollution resistance (at most 10%), and the contact angle between the coating film surface and water can reach 130 degrees.

Description

[technical field] [0001] The invention belongs to the field of acrylic cathode electrophoretic coatings and preparation methods, and relates to a self-cleaning fluorine-silicon modified acrylic cathode electrophoretic coating and a preparation method thereof. [Background technique] [0002] After decades of development, cathodic electrophoretic coatings have been widely used in the automotive industry, building materials, hardware, home appliances and other metal coating fields. The scope of application is not limited to primers, but also in the field of topcoats. However, with the prolongation of the service time of the painted products, the surface of the products will be more polluted, and the cost of cleaning needs to be increased. At present, there are almost no coating products with self-cleaning function through one-step electrophoretic coating in the market. Self-cleaning coatings are more and more popular in the market due to their advantages of environmental prote...

Claims

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Application Information

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IPC IPC(8): C09D175/04C09D7/12C09D5/44C08G18/80C08G18/62C08F220/28C08F220/22C08F220/34C08F230/08C08F220/18C08F212/08C08F220/14
Inventor 周贤孔凡桃刘薇薇徐庆陈豪杰张桂花
Owner HAOLISEN COATING SHANGHAI
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