Water-borne fluorine-containing hydroxy acrylic resin and water-borne paint containing the same

A fluorine-containing hydroxy acrylic and hydroxy acrylic technology, applied in the direction of polyurea/polyurethane coatings, coatings, etc., can solve the problems of unsatisfactory aging resistance, insufficient paint film fullness, poor paint workability, etc., to improve hardness, increase Effect of gloss and aging resistance improvement

Inactive Publication Date: 2019-09-06
武汉仕全兴新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the enhancement of people's awareness of environmental protection, countries have imposed strict restrictions on the content of volatile organic compounds (VOC) in coating systems. At present, ordinary hydroxyacrylic resins commonly used in China will involve a large amount of organic solvents when they are synthesized and used. , causing serious pollution to the environment, and because of the high viscosity of the existing hydroxyacrylic resin, the prepared coating has poor workability, insufficient fullness of the paint film, and unsatisfactory aging resistance

Method used

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  • Water-borne fluorine-containing hydroxy acrylic resin and water-borne paint containing the same
  • Water-borne fluorine-containing hydroxy acrylic resin and water-borne paint containing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] (1) Add 5 parts of dipropylene glycol methyl ether into a reactor equipped with a condensing device and a stirring rod, and raise the temperature to 105°C. After constant temperature, start to drop the mixed solution (5.35 parts of methyl methacrylate, 5.9 parts of n-butyl acrylate, 1.7 parts of styrene, 7.05 parts of 2-ethylhexyl acrylate, 28 parts of 2-hydroxypropyl acrylate, 2.5 parts of methacrylic acid, 3.53 parts of vinyl tertiary carbonate (VV-10), 2 parts of dodecafluoroheptyl methacrylate, 0.42 parts of dibenzoyl peroxide, 0.1 part of mercaptoethanol), control the dropping rate, at 1.5 After the dropwise addition is completed within 2 hours, continue to keep warm for 2 hours, add 0.18 parts of dibenzoyl peroxide to initiate, continue to keep warm for 3 hours, and measure the conversion rate every half hour until the conversion rate reaches more than 98%. The value was 22 mgKOH / g.

[0053] (2) Lower the temperature of the system to 50°C, control the rotation sp...

Embodiment 2

[0057] (1) Add 6 parts of dipropylene glycol butyl ether into a reactor equipped with a condensing device and a stirring rod, and raise the temperature to 105°C. After constant temperature, start to drop the mixed solution (7 parts of methyl methacrylate, 6.1 parts of n-butyl acrylate, 2.3 parts of styrene, 8.6 parts of isooctyl acrylate, 27 parts of 2-hydroxypropyl methacrylate, 27 parts of methyl 1.9 parts of acrylic acid, 3.6 parts of vinyl tertiary carbonate (VV-10), 2.5 parts of dodecafluoroheptyl methacrylate, 0.56 parts of dibenzoyl peroxide, and 0.2 parts of mercaptoethanol), control the dropping rate at 1.5-2 Dropping is completed within 1 hour, continue to keep warm for 2 hours, add 0.24 parts of dibenzoyl peroxide to trigger, continue to keep warm for 3 hours, measure the conversion rate every half hour until the conversion rate reaches more than 98%, and measure the acid value 20mgKOH / g.

[0058] (2) Lower the temperature of the system to 60°C, control the rotatio...

Embodiment 3

[0062] (1) Add 5.5 parts of n-butanol into a reactor equipped with a condensing device and a stirring rod, and raise the temperature to 105°C. After constant temperature, start to drop the mixed solution (6.8 parts of methyl methacrylate, 6.3 parts of n-butyl acrylate, 2.4 parts of styrene, 8.5 parts of isooctyl acrylate, 25.5 parts of 2-hydroxypropyl methacrylate, methyl 1.6 parts of acrylic acid, 5 parts of vinyl tertiary carbonate (VV-10) containing 10 carbon elements, 1.9 parts of dodecafluoroheptyl methacrylate, 0.49 parts of dibenzoyl peroxide, 0.2 parts of mercaptoethanol), controlled drop Acceleration, the dropwise addition is completed within 1.5 to 2 hours, continue to keep warm for 2 hours, add 0.21 parts of dibenzoyl peroxide after initiation, continue to keep warm for 3 hours, measure the conversion rate every half hour, until the conversion rate reaches 98% As above, the measured acid value was 18 mg KOH / g.

[0063] (2) Lower the temperature of the system to 70°...

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Abstract

The invention relates to water-borne fluorine-containing hydroxy acrylic resin and water-borne paint containing the same. The water-borne fluorine-containing hydroxy acrylic resin is prepared by threesteps of synthesis of fluorine-containing hydroxy acrylic resin, neutralization into salt and dispersion with deionized water. The preparation has the advantages of good raw material conversion rate,high product purity and green and environmentally protection reaction. The water-borne fluorine-containing hydroxy acrylic resin prepared by the method can be cured into a film with an isocyanate curing agent and applied to the surface of an ABS plastic sheet.

Description

technical field [0001] The invention belongs to the technical field of water-based coatings, and in particular relates to a water-based fluorine-containing hydroxyl acrylic resin and a water-based coating which uses the resin as a main raw material and can be used on the surface of ABS plastic plates. Background technique [0002] ABS plastic is widely used in human production and life, especially in the automobile industry, due to its light weight, wide design space, good dynamic performance and resistance to decay and rust. In order to improve the heat resistance of plastics, hydroxyacrylic resins and isocyanates can be used to cure and form films on plastics at room temperature or at medium and low temperatures. However, with the enhancement of people's awareness of environmental protection, all countries have imposed strict restrictions on the content of volatile organic compounds (VOC) in coating systems. At present, the common hydroxy acrylic resins commonly used in Ch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/20C08F220/14C08F220/18C08F212/08C08F220/06C08F218/00C08F220/24C09D175/04
CPCC08F220/20C09D175/04
Inventor 汤诚余文君华成明龙飞达徐世环
Owner 武汉仕全兴新材料科技股份有限公司
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