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Preparation method of environment-friendly high-adhesion waterborne wood pain

A water-based wood paint with high adhesion technology, applied in the direction of coating, etc., can solve the problems of insufficient adhesion between the coating and the surface of wood product substrates, human health and environmental hazards, poor wear resistance, etc., to achieve rapid curing, Good adhesion and good wear resistance

Inactive Publication Date: 2017-03-15
TRUSYN CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem mainly solved by the present invention: in view of the low hardness and poor wear resistance of the existing wood paint, and the insufficient adhesion between the coating and the surface of the wood product substrate, the organic volatiles contained in the wood paint will Defects that cause serious harm to human health and the environment provide a method for preparing slurry by adding organic mixed particles and adding heavy calcium carbonate, and applying it to water-based acrylic resin. The invention first uses composite monomers to prepare water-based acrylic resin , and then use nano-montmorillonite, magnesium oxide and other materials to prepare mixed powder, prepare mixed powder and heavy calcium carbonate to obtain slurry, and finally mix slurry, water-based acrylic resin and additives to obtain water-based wood varnish by ultrasonic dispersion. When water-based acrylic resin is used as the main body of wood lacquer, its film-forming and curing speed is fast, and the prepared slurry can form chemical bonds with functional groups such as hydroxyl and carboxyl on wood, thereby improving the adhesion of wood lacquer to the surface of wood product substrates. Focus on, and the present invention uses water as a solvent, does not contain harmful organic volatiles such as formaldehyde and benzene, and will not cause harm to human health and the environment after use. In addition, the wood paint film of the present invention has high hardness and good wear resistance ,with broadly application foreground

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0017] First, weigh 30g of methyl methacrylate, 25g of hydroxyethyl acrylate, 20g of butyl acrylate, 25g of acrylic acid and 3g of dibenzoyl peroxide, stir and mix evenly to obtain a mixed solution, add 150mL of n-butyl methacrylate to a 500mL three-necked flask Alcohol, put it into an oil bath and heat up to 115°C, slowly drop the mixed solution into the three-necked flask at this temperature, control the dripping in 40 minutes, keep stirring and react for 3 hours after the dripping, cool down to 60°C after the reaction, and reduce the temperature. Distill under pressure for 1 h, mix the distilled liquid with deionized water at a volume ratio of 1:4, adjust the pH to 10.5 with 20% sodium hydroxide by mass fraction, and stir for 10 min after adjustment to obtain a viscous liquid, which is set aside; 5g of nano-montmorillonite, 1g of glass, 3g of alumina, 1g of asbestos fiber, stirred and mixed, put into the jet mill, and crushed into a mixed powder with a particle size of 10μm;...

example 2

[0020]First, weigh 40g of methyl methacrylate, 30g of hydroxyethyl acrylate, 25g of butyl acrylate, 28g of acrylic acid and 4g of dibenzoyl peroxide, stir and mix evenly to obtain a mixed solution, and add 175mL of n-butyl to a 500mL three-necked flask Alcohol, put it into an oil bath and heat up to 118°C, slowly drop the mixed solution into the three-necked flask at this temperature, control the dripping in 50 minutes, keep stirring and react for 3 hours after the dripping, and cool down to 63°C after the reaction. Distill under pressure for 1 hour, mix the distilled liquid with deionized water at a volume ratio of 1:4, and adjust the pH to 10.8 with 20% sodium hydroxide by mass fraction, and stir for 13 minutes after adjustment to obtain a viscous liquid for subsequent use; 8g of nano-montmorillonite, 1g of glass, 4g of alumina, 2g of asbestos fiber, stirred and mixed, put into the jet mill, and crushed into a mixed powder with a particle size of 13μm; then weighed 150g of de...

example 3

[0023] First, weigh 50g of methyl methacrylate, 35g of hydroxyethyl acrylate, 30g of butyl acrylate, 30g of acrylic acid and 5g of dibenzoyl peroxide, stir and mix evenly to obtain a mixed solution, and add 200mL of n-butyl acrylate to a 500mL three-necked flask Alcohol, put it into an oil bath and heat up to 120°C, slowly drop the mixed solution into the three-necked flask at this temperature, control the dripping in 60 minutes, keep stirring and react for 4 hours after the dripping, cool down to 65°C after the reaction, reduce Distilled under pressure for 2 hours, mixed the distilled liquid with deionized water at a volume ratio of 1:4, and adjusted the pH to 11.0 with 20% sodium hydroxide by mass fraction, and stirred for 15 minutes after adjustment to obtain a viscous liquid, which was set aside; then weighed 10g of nano-montmorillonite, 2g of glass, 5g of alumina, 3g of asbestos fiber, stirred and mixed, put into the jet mill, and pulverized into a mixed powder with a part...

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PUM

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Abstract

The invention discloses a preparation method of environment-friendly high-adhesion waterborne wood paint, which belongs to the technical field of coating preparation. In the invention, the water-based acrylic resin is prepared by using the composite monomer, and the mixed powder is prepared by using nano-montmorillonite and magnesium oxide. The mixed powder and the heavy calcium carbonate are prepared to prepare the slurry. Finally, the slurry, the water-based acrylic resin and the auxiliary are mixed and dispersed ultrasonically to obtain the waterborne wood pain. The water-based acrylic resin is used as the body of the wood pain, the filming and curing speed is fast, and the prepared slurry can form chemical bonds with the functional groups of hydroxyl, carboxyl and others, thereby improving the adhesion of the wood paint to the surface of the wood product substrate. The preparation method of the invention uses water as the solvent and does not contain harmful organic volatile substances such as formaldehyde and benzene, and does not cause harm to human health and the environment after use. In addition, the wood paint has high film hardness, good wear resistance, and broad application prospects.

Description

technical field [0001] The invention discloses a preparation method of an environment-friendly high-adhesion water-based wood paint, which belongs to the technical field of paint preparation. Background technique [0002] Wood paint is a kind of resin paint used on wood products, including polyester, polyurethane paint, etc., which can be divided into water-based and oil-based. According to gloss, it can be divided into high gloss, semi-matte and matte. According to the application, it can be divided into furniture paint, floor paint and so on. Wood lacquer is one of the main varieties of industrial coatings, and it occupies a considerable proportion in the output of industrial coatings and coatings in various countries. [0003] Environmental protection and energy are two major challenges we face in the 21st century. In order to meet this challenge, the coatings industry is gradually shifting from traditional varieties with high pollution, high energy consumption, and ex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/12C09D7/12C09D7/00C08F220/14C08F220/28C08F220/18C08F220/06
CPCC08F220/14C08K2201/011C08L2205/035C09D7/20C09D7/61C09D7/63C09D7/65C09D7/70C09D133/12C08L93/04C08L1/284C08L83/04C08K13/04C08K7/12C08K2003/2227C08K3/40C08K3/346C08F220/281C08F220/1804C08F220/06
Inventor 吴蓉蓉徐越薛蕾
Owner TRUSYN CHEM TECH