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Airgel modified two-component waterborne polyurethane elastic runway coating and its preparation and application method

A water-based polyurethane, two-component technology, used in polyurea/polyurethane coatings, coatings, etc., can solve problems such as decreased elasticity, limited elasticity, and hidden dangers of runway health, and achieve the effect of delaying aging and prolonging service life.

Active Publication Date: 2020-11-06
深圳广田高科新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the limited elasticity of polyurethane itself, and the aging of polyurethane over time will bring about a decrease in elasticity, plastic particles are still inseparable from elastic runway coatings, which still poses a great health hazard to the runway

Method used

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  • Airgel modified two-component waterborne polyurethane elastic runway coating and its preparation and application method
  • Airgel modified two-component waterborne polyurethane elastic runway coating and its preparation and application method
  • Airgel modified two-component waterborne polyurethane elastic runway coating and its preparation and application method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Step 1. Prepare pigment paste:

[0058] Add 24kg of water-based hydroxyl functional polyacrylate dispersion into the pre-dispersion tank, start stirring, then add 4kg of deionized water, 35kg of rutile titanium dioxide, and 32kg of nano-silica airgel in turn under stirring, and then turn on the water at 1000 rpm Pre-disperse for 15 minutes at a speed of 1 / min; then add 4kg of A-B block polymer hyperdispersant, 0.6kg of magnesium aluminum silicate suspending agent, and 0.4kg of silicone defoamer in sequence under stirring, and increase the speed to Stir and disperse at high speed at 1500 rpm for 30 minutes, then grind for 4 to 5 hours with a pin-type sand mill, and set aside.

[0059] Step 2. Prepare component A:

[0060] Weigh and add 36kg of water-based hydroxyl functional polyacrylate dispersion in the production tank, then add 0.18kg of wetting and leveling agent and 0.12kg of polyurethane thickener successively under stirring at 500 rpm. Stir at different speeds f...

Embodiment 2

[0067] Step 1. Prepare pigment paste:

[0068] Add 23kg of water-based hydroxyl functional polyacrylate dispersion into the pre-dispersion cylinder, start stirring, then add 5kg of deionized water, 34kg of rutile titanium dioxide, and 33kg of nano-silica airgel in turn under stirring. Pre-disperse for 15 minutes at the rotating speed per minute; then add 4.15kg of A-B block polymer hyperdispersant, 0.5kg of magnesium aluminum silicate suspending agent, and 0.35kg of silicone defoamer in sequence under stirring, and increase the rotating speed after adding Stir and disperse at a high speed at 1500 rpm for 30 minutes, then grind for 4 to 5 hours with a pin-type sand mill, and set aside.

[0069] Step 2. Prepare component A:

[0070] Weigh and add 35.5kg of water-based hydroxy-functional polyacrylate dispersion into the production tank, then add 0.15kg of wetting and leveling agent and 0.1kg of polyurethane thickener in sequence under stirring at 500 rpm, and then add it at 500 ...

Embodiment 3

[0077] Step 1. Prepare pigment paste:

[0078] Add 22kg of water-based hydroxyl functional polyacrylate dispersion into the pre-dispersion cylinder, start stirring, and then add 6kg of deionized water, 33kg of rutile titanium dioxide, and 34kg of nano-silica airgel in turn under stirring. Pre-disperse for 15 minutes at the rotating speed per minute; then add 4.3kg of A-B block polymer hyperdispersant, 0.4kg of magnesium aluminum silicate suspending agent, and 0.3kg of organosilicon defoamer in sequence under stirring, and increase the rotating speed after adding Stir and disperse at a high speed at 1500 rpm for 30 minutes, then grind for 4 to 5 hours with a pin-type sand mill, and set aside.

[0079] Step 2. Prepare component A:

[0080]Weigh and add 35kg of water-based hydroxyl functional polyacrylate dispersion in the production tank, then add 0.12kg of wetting and leveling agent and 0.08kg of polyurethane thickener under stirring at 500 rpm, and then add it at 500 rpm Sti...

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Abstract

The invention provides an aerogel modified two-component waterborne polyurethane elastic running track paint. The paint is prepared by mixing of the following components by weight: a component A, which includes 35-36 parts of an aqueous hydroxyl functional polyacrylate dispersion, 0.12-0.18 part of a wetting leveling agent, 0.08-0.12 part of a polyurethane thickener, 46.5-48.5 parts of pigment andfiller slurry, 1.0-1.5 parts of ethylene glycol butyl ether, 0.2-0.3 part of a polyurethane rheological agent and 14.5-16.0 parts of deionized water; and a component B, which is hexamethylene diisocyanate based hydrophilic aliphatic polyisocyanate serving as a curing agent; and the weight ratio of the component A to the component B is 6:1-1.1. The aerogel modified two-component waterborne polyurethane elastic running track paint provided by the invention completely eliminates the "toxic running track" problem, creates a healthy sports environment, and ensures the product use effect to meet the storage and construction needs, and ensures the environmental protection, high elasticity and long service life of elastic running tracks.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to an airgel-modified two-component waterborne polyurethane elastic runway coating and a preparation and application method thereof. Background technique [0002] In recent years, a large number of schools have been upgraded and renovated, using plastic runways to replace the original playground materials. However, due to the lack of supervision system, some unscrupulous businesses use toxic materials for construction in order to save costs, and use a large number of toxic rubber particles made from waste tires and waste cables. as a filler. Therefore, the phenomenon of "odor-smelling track and smelly playground" occurred in many schools one after another, and even caused students to have nosebleeds, allergies, dizziness, nausea and other symptoms, which brought great harm to the bodies of teachers and students who used the track. [0003] In order to solve the above pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/04C09D7/61
CPCC08K2003/2241C08K2201/011C08L2205/025C08L2205/035C09D7/61C09D7/70C09D175/04C08L75/04C08K3/22C08K7/26
Inventor 徐新祥王红梅王鹏程胡基如刘述敏
Owner 深圳广田高科新材料有限公司
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