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Environment-friendly water-based polyurethane paint vehicle and water-based polyurethane finish paint for courts

A water-based polyurethane, environmentally friendly technology, applied in the field of topcoat, can solve the problems of hardness, wear resistance adhesion and poor high and low temperature performance

Active Publication Date: 2017-09-29
广州康狄夫环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the currently researched and developed water-based polyurethane topcoats for sports courts generally have problems of poor hardness, wear resistance, adhesion and high and low temperature performance after film formation.

Method used

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  • Environment-friendly water-based polyurethane paint vehicle and water-based polyurethane finish paint for courts
  • Environment-friendly water-based polyurethane paint vehicle and water-based polyurethane finish paint for courts
  • Environment-friendly water-based polyurethane paint vehicle and water-based polyurethane finish paint for courts

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] a) Preparation of water-based polyurethane emulsion

[0062] Add 100 parts by mass of carbon dioxide copolymer polyol (Mn=3000, hydroxyl value 37±2), 3 parts by mass of ethylene glycol, and 8 parts by mass of dimethylol propionic acid under the condition of stirring at 500 RPM, and vacuumize and dehydrate at 100°C For 2 hours, cool down to 60°C, add 50 parts by mass of isophorone diisocyanate, stir for 0.5 hours, add 0.2 parts by mass of stannous octoate catalyst, heat up to 85°C for 3 hours, cool down to 60°C, add 6 parts by mass of three Ethylamine, stirred for 0.5 hour, 200 parts by mass of water was added under high-speed stirring condition of 1500 RPM, and stirred for 15 minutes to obtain an aqueous polyurethane emulsion.

[0063] Water-based polyurethane film sample preparation: The water-based polyurethane emulsion was formed into a film at room temperature for 24 hours, and then dried at 80°C for 12 hours to obtain a water-based polyurethane film.

[0064] b) P...

Embodiment 2

[0069] a) Preparation of water-based polyurethane emulsion

[0070] Add 100 parts by mass of carbon dioxide copolymer polyol (Mn=2000, hydroxyl value 56 ± 2), 6 parts by mass of ethylene glycol, 1 part by mass of trimethylolpropane, 12 parts by mass of dimethylolpropionic acid under stirring conditions Vacuum dehydration at 100°C for 2 hours, lower the temperature to 60°C, add 80 parts by mass of isophorone diisocyanate, stir for 0.5 hours, add 0.2 parts by mass of stannous octoate catalyst, heat up to 85°C for 3 hours, and cool to 50 degrees, add 9 parts by mass of triethylamine, stir for 0.5 hours, add 200 parts by mass of water under high-speed stirring condition of 1500 RPM, and stir for 15 minutes to obtain an aqueous polyurethane emulsion.

[0071] Water-based polyurethane film sample preparation: The water-based polyurethane emulsion was formed into a film at room temperature for 24 hours, and then dried at 80°C for 12 hours to obtain a water-based polyurethane film.

...

Embodiment 3

[0077] a) Preparation of water-based polyurethane emulsion

[0078] Add 100 parts by mass of carbon dioxide copolymer polyol (Mn=3000, hydroxyl value 37±2), 6 parts by mass of 1,6-hexanediol, and 5 parts by mass of dimethylol propionic acid under stirring conditions at 100°C Vacuumize and dehydrate for 2 hours, cool down to 60°C, add 45 parts by mass of isophorone diisocyanate, stir for 0.5 hours, add 0.2 parts by mass of stannous octoate catalyst, heat up to 80°C for 5 hours, cool to 45°C, add 9 Parts by mass of triethylamine were stirred for 0.2 hours, and 200 parts by mass of water were added under high-speed stirring conditions of 1500 RPM, and stirred for 15 minutes to obtain an aqueous polyurethane emulsion.

[0079] Water-based polyurethane film sample preparation: The water-based polyurethane emulsion was formed into a film at room temperature for 24 hours, and then dried at 80°C for 12 hours to obtain a water-based polyurethane film.

[0080] b) Preparation of waterbor...

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Abstract

The invention belongs to the field of finish paints, and particularly relates to an environment-friendly water-based polyurethane paint vehicle and a water-based polyurethane finish paint for courts. The finish paint provided by the invention is prepared from the following components: 100 parts of paint vehicle; and 2 to 20 parts of curing agent. The paint vehicle is prepared from the following components: 100 parts of water-based polyurethane emulsion; 0.5 to 40 parts of rutile titanium dioxide; 0.1 to 2 parts of cellulose; 0 to 20 parts of pigment; 0.1 to 8 part of scratch-resistant agent; 0.05 to 3 parts of defoamer; 0.1 to 3 parts of dispersant; 0.1 to 3 parts of wetting agent; 0.1 to 3 parts of pH regulator; 0.5 to 5 parts of thickening agent; 0.1 to 2 parts of preservative; and 10 to 60 parts of water. The invention provides the finish-optimizing composition and the content of each component, so the finish paint shows high hardness and adhesive force after being formed into a film, and also shows excellent high-temperature dryness and low-temperature flexibility and terrific abrasive resistance.

Description

technical field [0001] The invention belongs to the field of top paints, and in particular relates to an environment-friendly water-based polyurethane paint and water-based polyurethane top paint for courts. Background technique [0002] In the early days, solvent-based polyurethane was generally used as the topcoat for stadiums, but it has been gradually eliminated due to the need to add a large amount of benzene or other organic solvents during the synthesis and construction process, which will cause great harm to the environment and human body. Water-based topcoats have the characteristics of non-toxicity, safe transportation, no need to add solvents for manufacturing and construction, and environmental friendliness. They have become the most widely used types of topcoats for golf courses, and the most common ones are water-based topcoats prepared from water-based acrylic emulsions. [0003] Although the water-based topcoat prepared by water-based acrylic emulsion is more...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/06C09D175/08C09D5/02C09D7/12C08G18/44C08G18/48C08G18/75C08G18/32C08G18/34C08G18/66
CPCC08G18/0823C08G18/3206C08G18/348C08G18/44C08G18/48C08G18/664C08G18/6644C08G18/755C08K2003/2241C08K2003/2272C09D5/024C09D5/028C09D5/18C09D175/06C09D175/08C08L1/02C08K3/22
Inventor 李鸿越
Owner 广州康狄夫环保科技有限公司
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