Acrylate emulsion used for water-based metallic paint and preparation method thereof

A water-based metal paint and acrylate technology, applied in the direction of coating, etc., can solve the problems of insufficient water resistance, and achieve the effects of enhancing water resistance, improving water resistance, improving water resistance and adhesion

Active Publication Date: 2016-01-20
HAOLISEN COATING SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is mainly to solve the problem of insufficient water resistance of acrylate emulsions for water-based metallic paints in the prior art

Method used

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  • Acrylate emulsion used for water-based metallic paint and preparation method thereof
  • Acrylate emulsion used for water-based metallic paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) Preparation of composite emulsifier: Take sodium dodecylbenzenesulfonate: 10g, OP-10: 10g, sodium p-styrenesulfonate: 20g, mix well.

[0026] (2) Preparation of nuclear monomer pre-emulsion: get styrene: 100g, methyl methacrylate: 100g, butyl acrylate: 50g, isooctyl acrylate: 50g, deionized water: 170g, composite emulsifier: 20g, Initiator: 0.5 g is placed in a reaction kettle at a rotational speed of 600 r / min, and dispersed for 20 min to prepare a nuclear monomer pre-emulsion.

[0027] (3) Preparation of shell monomer pre-emulsion: styrene: 50g, methyl methacrylate: 50g, isooctyl acrylate: 50g, hydroxyethyl methacrylate: 10g, methacrylic acid: 10g, acetyl methacrylate Acetoxyethyl ester: 10g, vinyltrimethoxysilane: 10g, deionized water, 170g; complex emulsifier, 20g; initiator: 0.5g was placed in a reaction kettle at a speed of 600r / min, and dispersed for 20min to obtain a shell Monomer pre-emulsion.

[0028] (4) Weigh deionized water: 150g, initiator: 0.5g; pH ...

Embodiment 2

[0030] (1) Preparation of composite emulsifier: Take sodium dodecylbenzenesulfonate: 10g, OP-10: 10g, sodium p-styrenesulfonate: 20g, mix well.

[0031] (2) Preparation of nuclear monomer pre-emulsion: take styrene: 50g, methyl methacrylate: 100g, butyl acrylate: 50g, deionized water: 170g, composite emulsifier: 20g, initiator: 0.5g in In the reaction kettle, the rotation speed is 600r / min, and the nucleus monomer pre-emulsion is prepared by dispersing for 20min.

[0032] (3) Preparation of shell monomer pre-emulsion: styrene: 50g, methyl methacrylate: 50g, butyl acrylate: 30g, isooctyl acrylate: 50g, hydroxyethyl methacrylate: 20g, methacrylic acid: 10g, acetoacetoxyethyl methacrylate: 20g, vinyltriethoxysilane: 20g, deionized water, 170g; composite emulsifier, 20g; initiator: 0.5g is placed in the reaction kettle, and the rotation speed is 600r / min, dispersed for 20 minutes to prepare the shell monomer pre-emulsion.

[0033] (4) Weigh deionized water: 150g, initiator: 0.5...

Embodiment 3

[0035] (1) Preparation of composite emulsifier: Take sodium dodecylbenzenesulfonate: 10g, OP-10: 10g, sodium p-styrenesulfonate: 20g, mix well.

[0036] (2) Preparation of nuclear monomer pre-emulsion: take styrene: 50g, methyl methacrylate: 100g, butyl acrylate: 50g, deionized water: 170g, composite emulsifier: 20g, initiator: 0.5g in In the reaction kettle, the rotation speed is 600r / min, and the nucleus monomer pre-emulsion is prepared by dispersing for 20min.

[0037](3) Preparation of shell monomer pre-emulsion: styrene: 50g, methyl methacrylate: 65g, isooctyl acrylate: 50g, hydroxyethyl methacrylate: 30g, acrylic acid: 15g, acetoacetoxymethacrylate Ethyl ester: 15g, methacryloxypropyl trimethoxysilane: 15g, deionized water, 170g; complex emulsifier, 20g; The shell monomer pre-emulsion was prepared in 20 minutes.

[0038] (4) Weigh deionized water: 150g, initiator: 0.5g; pH buffer: 0.5g in the reaction kettle, stir at 200r / min, heat up to 75°C, start to add the nuclear ...

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Abstract

The invention discloses acrylate emulsion used for water-based metallic paint and a preparation method thereof. The emulsion comprises the following substances in parts by weight: 33-45 parts of vinyl monomers or vinyl aromatic compounds excluding carboxyl or hydroxy, 1-7 parts of vinyl monomer containing hydroxy, 0.5-1 part of vinyl monomer containing carboxyl, 1-3 parts of functional monomer, 1-3 parts of organosilicone monomer, 0.15-0.4 part of initiator, 1-4 parts of compound emulsifier, 0.1-0.5 part of neutralizer, 0.05-0.1 part of pH buffer agent and 45-50 parts of deionized water. The emulsion is obtained through core/shell emulsion polymerization. Varnish is prepared by using the emulsion and amino resin. A film is formed on tinplate by wiping. Through tests, the grade of the adhesion of the film is 0 (cross cut test) and the film is not whitened after the film is soaked in water for seven days under the room temperature.

Description

[technical field] [0001] The invention relates to an acrylate emulsion and a preparation method thereof, in particular to an acrylate emulsion for water-based metal paint and a preparation method thereof. [Background technique] [0002] Metallic paint is widely used in metal anticorrosion and decoration. At present, most of the metallic paints on the market are solvent-based paints, because they are more harmful to the environment and human body during production, transportation and painting. People have developed a series of water-based metallic paints. In the long run, water-based metallic paints are developing in a green and environmentally friendly direction, and are getting more and more attention from the market and the government. [0003] Compared with the water-based metallic paints and solvent-based metallic paints currently on the market, although water-based metallic paints have an absolute advantage in environmental protection, they still have deficiencies in pe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/14C08F212/08C08F220/18C08F220/28C08F220/06C08F230/08C08F2/30C08F2/26C09D125/14C09D133/12
Inventor 刘薇薇郑子童孔凡桃张建中徐杰
Owner HAOLISEN COATING SHANGHAI
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