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Low-VOC (volatile organic compound) super-curing repairing varnish and preparation method thereof

A varnish, curing resin technology, applied in the direction of paint, coating, anti-corrosion coating containing biocide, can solve the problems of poor fullness, dry paint film, difficult to consumers, etc., to reduce the content of VOC, paint film Bright, GST-free effect

Active Publication Date: 2018-07-13
GUANGDONG YATU CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional varnish not only increases the cost, but also pollutes the environment, making it difficult to be welcomed by consumers. For glossy varnishes, under high VOC construction conditions, the paint film is prone to dryness and poor fullness.

Method used

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  • Low-VOC (volatile organic compound) super-curing repairing varnish and preparation method thereof
  • Low-VOC (volatile organic compound) super-curing repairing varnish and preparation method thereof
  • Low-VOC (volatile organic compound) super-curing repairing varnish and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Embodiment 1, a kind of fluorine modified acrylic resin

[0052] The fluorine-modified resin is made from the following raw materials in parts by weight:

[0053] 24 parts of xylene, 14 parts of butyl acetate, 40 parts of methyl methacrylate, 20 parts of butyl acrylate, 8 parts of methacrylic acid, 45 parts of hydroxybutyl acrylate, 23 parts of vinyl tertiary carbonate, acetoacetic acid methacrylate 6 parts of ethyl ester, 45 parts of dodecafluoroheptyl methacrylate, 8 parts of tert-butyl peroxybenzoate, 4 parts of mercaptoethanol;

[0054] The preparation method of the fluorine-modified acrylic resin:

[0055] S1. Put the four-neck flask in a constant temperature and constant speed magnetic stirring oil bath, add xylene and butyl acetate to the four-necked flask, raise the temperature of the constant temperature and constant speed magnetic stirring oil bath to 116°C, and adjust the speed to 350r / min ;

[0056] S2, then methyl methacrylate, butyl acrylate, methacryli...

Embodiment 2

[0059] Embodiment 2, a kind of low-VOC super-cured repair varnish

[0060] The super-cured repair varnish of described low VOC is formulated by the weight ratio of A component and B component by 2:1;

[0061] Described A component is made up of the raw material of following parts by weight:

[0062] 58.8 parts of polyol supercured resin, 20 parts of fluorine-modified acrylic resin, 1.2 parts of hyperbranched polyester polyol resin, 20 parts of solvent, 0.5 part of AFCONA 3700, 0.05 part of dibutyltin dilaurate; Ester, isobutyl acetate and propylene glycol methyl ether acetate are composed of 5:6:9 by volume;

[0063] The B component consists of the following raw materials in parts by weight:

[0064] Covestro 60 parts of N3900, 5 parts of xylene, 35 parts of n-butyl acetate.

[0065] Preparation:

[0066] Step 1, preparation of component A:

[0067] Put the solvent into the container, then put in polyol super-curable resin, fluorine-modified acrylic resin and hyperbranc...

Embodiment 3

[0071] Embodiment 3, a kind of low-VOC super-cured repair varnish

[0072] The super-cured repair varnish of described low VOC is formulated by the weight ratio of A component and B component by 2:1;

[0073] Described A component is made up of the raw material of following parts by weight:

[0074] 50 parts of polyol supercured resin, 15 parts of fluorine-modified acrylic resin, 1 part of hyperbranched polyester polyol resin, 16 parts of solvent, 0.1 part of AFCONA 3700, 0.01 part of dibutyltin dilaurate; Ester, isobutyl acetate and propylene glycol methyl ether acetate are composed of 4:4:6 by volume;

[0075] The B component consists of the following raw materials in parts by weight:

[0076] Covestro 53 parts of N3900, 3 parts of xylene, 32 parts of n-butyl acetate;

[0077] The preparation method is similar to Example 2.

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Abstract

The invention belongs to the technical field of chemical coatings, and particularly relates to low-VOC (volatile organic compound) super-curing repairing varnish and a preparation method thereof. Thelow-VOC super-curing repairing varnish provided by the invention is mainly prepared from a component A and a component B; the component A is mainly prepared from polyol super-curing resin, fluoro-modified acrylic resin, overbranched polyester polyol resin, a solvent, a leveling agent and an organic tin dryer; the component B is mainly prepared from low-viscosity aliphatic polyisocyanate, xylene and n-butyl acetate. The low-VOC super-curing repairing varnish provided by the invention can reduce the VOC content using use of coating and relieve the environmental pollution; furthermore, the low-VOC super-curing repairing varnish also has the advantages of formation of a bright varnish film, high fullness, high hardness, scratching resistance, aging resistance, straining resistance and the likein a use process.

Description

technical field [0001] The invention belongs to the technical field of chemical coatings, and in particular relates to a low-VOC super-cured repair varnish and a preparation method thereof. technical background [0002] Due to people's insufficient anticipation of the negative impact of highly developed industries, it has led to three global crises: resource shortage, environmental pollution, and ecological destruction. Energy conservation, emission reduction, and environmental protection have become the direction of the common efforts of all mankind in the 21st century. VOC (volatile organic compounds), namely volatile organic compounds, as a non-negligible culprit of environmental pollution, is one of the substances severely restricted by various countries, and has a huge impact on human health. When VOC reaches a certain concentration, it will cause headache, nausea, vomiting and fatigue in a short time, and in severe cases, convulsions, coma and other symptoms will occu...

Claims

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Application Information

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IPC IPC(8): C09D175/04C09D5/16C09D5/08C09D7/20C09D7/63C09D7/47
CPCC08K5/57C09D5/08C09D5/1687C09D175/04
Inventor 冯兆华谭立斌王广坤陈容爱赵立英
Owner GUANGDONG YATU CHEM
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