Monocomponent wear-resistant aqueous polyurethane wood floor coating for container and preparation method thereof

A waterborne polyurethane, one-component technology, applied in polyurea/polyurethane coatings, coatings, fibrous fillers, etc., can solve problems such as environmental pollution, flammability and explosion, and affect the health of construction workers, and achieve the goal of solving environmental pollution Effect

Active Publication Date: 2012-10-24
GUANGZHOU JOINTAS CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention uses water-based aliphatic polyurethane resin as a film-forming substance, adds nano-aluminum oxide slurry, selects environmentally friendly composite film-forming aids and various functional aids, and conducts reasonable formula design to prepare an environmentally friendly, High-efficiency water-based wood floor coatings for containers to replace traditional solvent-based wood floor coatings, and solve environmental pollution, flammability and explosion problems caused by the volatilization of organic solvents, and affect the health of construction workers;

Method used

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  • Monocomponent wear-resistant aqueous polyurethane wood floor coating for container and preparation method thereof
  • Monocomponent wear-resistant aqueous polyurethane wood floor coating for container and preparation method thereof
  • Monocomponent wear-resistant aqueous polyurethane wood floor coating for container and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] 1) According to the mass percentage of the constituent components of the nano-alumina slurry (deionized water 91%, NDZ201 titanate coupling agent 0.03%, nano-Al 2 o 3 4%, SN-5040 dispersant 0.1%, diethanolamine 0.3%, each component was weighed and prepared according to the following steps and process conditions: deionized water, NDZ201, nano-Al 2 o 3 , SN-5040, dimethylethanolamine, added to the container, and mechanically stirred (800r / min speed) while adding raw materials; after adding raw materials, first high-speed dispersion (2000r / min speed) for 8min and then ultrasonic Disperse (20KHz frequency) for 8 minutes to prepare nano-alumina slurry for later use.

[0038] 2) Add 6% deionized water, under the condition of stirring at 700r / min, add the composite film-forming aid (Texanol, 2.5% from Eastman Company of the United States, PnP, 2.5% from Dow Chemical) in the formula and stir for 8 minutes; wait for the solution to drop To room temperature, the film-forming a...

Embodiment 2

[0041] 1) According to the mass percentage of the components of the nano-alumina slurry (deionized water 97%, NDZ201 titanate coupling agent 0.07%, nano-Al 2 o 3 6%, Orotan 731A dispersant 0.4%, AMP950.7%) were weighed and prepared according to the following steps and process conditions: deionized water, NDZ201, nano-Al 2 o 3 , Orotan 731A, AMP95, added to the container, and mechanically stirred (1000r / min speed) while adding the raw materials; after the raw materials were added, first high-speed dispersion (2500r / min speed) for 12min and then ultrasonic dispersion (50KHz frequency ) for 12 minutes, that is, the nano-alumina slurry is prepared for use.

[0042] 2) Add 18% deionized water, under the condition of stirring at 900r / min, add the composite film-forming aids (PPh, Dow Chemical 1.5%, PnP, Dow Chemical 1.5%) in the formula and stir for 12min; To room temperature, the film-forming aid mixed solution is prepared for subsequent use;

[0043] 3) Add 85% of water-based...

Embodiment 3

[0045] 1) According to the mass percentage of the constituent components of the nano-alumina slurry (deionized water 95%, NDZ201 titanate coupling agent 0.05%, nano-Al 2 o 3 5%, SN-5034 dispersant 0.2%, ammonia water 0.2%) were weighed and prepared according to the following steps and process conditions: deionized water, NDZ201, nano-Al 2 o 3 , SN-5034, and ammonia water are added to the container, and mechanically stirred (900r / min speed) while adding the raw materials; after the raw materials are added, first high-speed dispersion (2200r / min speed) for 10min and then ultrasonic dispersion (30KHz Frequency) for 11 minutes, that is, the nano-alumina slurry is prepared for use.

[0046] 2) Add 10% deionized water, and under the condition of stirring at 800r / min, add the composite film-forming aids in the formula (propylene glycol methyl ether PM, Dow Chemical 1.5%, propylene glycol butyl ether PnB, Dow Chemical 3%) Stir for 10 minutes; when the solution drops to room temper...

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Abstract

The invention discloses monocomponent wear-resistant aqueous polyurethane wood floor coating for containers and a preparation method thereof. The coating is composed of deionized water, aqueous fatty group polyurethane resin, nanometer alumina slurry, wetting dispersant A, wetting dispersant B, a pH regulator, a composite film-forming auxiliary agent, an antifoaming agent and a thickening agent. According to the invention, the nanometer alumina is effectively dispersed in the aqueous coating system through the preparation of the nanometer alumina slurry, enabling the coating to have excellent combination properties such as wear resistance, high hardness, high gloss and good adhesion, and both the quality and performance of the coating reach and go far beyond the GB / T 23999-2009 type A standard. With simple and convenient application, safety storage and stable performance, the product obtained through the invention contains no harmful substances such as benzene series, glycol ether and ester thereof, free formaldehyde and soluble heavy metals, and has excellent environmental protection performance which is significantly better than solvent coating, and reach and go far beyond the GB 24410-2009 standard,.

Description

technical field [0001] The invention relates to a water-based wood floor coating for containers and a preparation method thereof, in particular to a single-component high-hardness wear-resistant water-based polyurethane wood floor coating for containers and a preparation method thereof. Background technique [0002] The production of containers is a labor-intensive processing industry, and many processes rely on manual operations. Therefore, the production center of containers has gradually shifted from the United States and Japan to South Korea and China, and since 1994, China's container export volume has surpassed that of South Korea, which was known as the "container kingdom" at the time, and ranked first in the world. Industry has always ruled the world. With the transfer of the container production center, its supporting coating products have also been transferred to China. Therefore, the market demand for wood floor coatings for containers in my country is very cons...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D7/12C09C1/40
Inventor 陈中华陈剑华
Owner GUANGZHOU JOINTAS CHEM
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