Water-based styrene-acrylic emulsion for primer and topcoat integrated metallic paint and preparation method of water-based styrene-acrylic emulsion

A technology of water-based styrene-acrylic emulsion and metallic paint, applied in the field of polymer emulsion, can solve the problems of spending a lot of manpower and material resources, and it is difficult to take into account the performance of primer and topcoat at the same time, and achieve cost saving, good gloss and hardness, hardness, etc. Good results

Active Publication Date: 2017-04-19
成都巴德富科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned prior art and the water-based metallic paint formulated with water-based styrene-acrylic emulsion for common metals currently on the market either have a certain gloss and hardness, or have a certain anti-corrosion ability, but it is difficult to take into account the performance of the primer and the topcoat at the same time. At the same time, it takes a lot of manpower and material resources before two coats of spraying or brushing. Therefore, it is necessary to develop an anti-corrosion coating with good gloss and hardness, and excellent water resistance, salt water resistance and salt spray resistance. Dedicated water-based acrylic emulsions are urgently needed research work

Method used

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  • Water-based styrene-acrylic emulsion for primer and topcoat integrated metallic paint and preparation method of water-based styrene-acrylic emulsion
  • Water-based styrene-acrylic emulsion for primer and topcoat integrated metallic paint and preparation method of water-based styrene-acrylic emulsion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A water-based styrene-acrylic emulsion for metal paint with bottom and surface, its raw materials include the following components in parts by weight:

[0036] 8 parts of styrene, 21 parts of butyl methacrylate, 2 parts of butyl acrylate, 1 part of isooctyl acrylate, 1 part of acrylic acid, 1 part of ethylene glycol methacrylate phosphate, 2-hydroxyethyl methacrylate 2 parts of ester phosphate, 1 part of potassium dodecylbenzenesulfonate, 1 part of sodium allyloxy fatty alcohol oxyethylene ether sulfate, 0.3 part of ammonium persulfate, 0.1 part of hydrogen peroxide, 0.1 part of vitamin C and 53 parts of water share.

[0037] The preparation method of the water-based styrene-acrylic emulsion of the metal paint with one bottom surface, comprises the steps:

[0038] (1) Synthesis stage

[0039] a. Preparation of pre-emulsion, add 30% water and 50% raw material emulsifier (dodecylbenzenesulfonate potassium and allyloxy fatty alcohol oxyethylene ether sodium sulfate) to t...

Embodiment 2

[0049] A water-based styrene-acrylic emulsion for metal paint with bottom and surface, its raw materials include the following components in parts by weight:

[0050] 13 parts of styrene, 26 parts of butyl methacrylate, 7 parts of butyl acrylate, 3 parts of isooctyl acrylate, 5 parts of acrylic acid, 1 part of 2-hydroxyethyl methacrylate phosphate, dodecylbenzenesulfonate 1 part of sodium bicarbonate, 2 parts of nonylphenol ethoxylate, 0.6 part of potassium persulfate, 0.2 part of hydrogen peroxide, 0.2 part of vitamin C and 53 parts of water.

[0051] The preparation method of the water-based styrene-acrylic emulsion of the metal paint with one bottom surface, comprises the steps:

[0052] (1) Synthesis stage

[0053] a. Preparation of pre-emulsion, add water of 30% raw material and emulsifier (composed of sodium dodecylbenzenesulfonate and nonylphenol ethoxylate) of 50% raw material to the pre-emulsification tank, turn on the stirring According to the amount of raw materia...

Embodiment 3

[0063] A water-based styrene-acrylic emulsion for metal paint with bottom and surface, its raw materials include the following components in parts by weight:

[0064] 10 parts of styrene, 23 parts of butyl methacrylate, 5 parts of butyl acrylate, 2 parts of isooctyl acrylate, 3 parts of acrylic acid, 2 parts of alkyl acrylate phosphate, 2 parts of siloxane phosphate, hydroxypropyl 1 part of distarch phosphate, 1 part of sodium dodecylbenzenesulfonate, 0.5 part of sodium persulfate, 0.3 part of hydrogen peroxide, 0.3 part of vitamin C and 53 parts of water.

[0065] The preparation method of the water-based styrene-acrylic emulsion of the metal paint with one bottom surface, comprises the steps:

[0066] (1) Synthesis stage

[0067] a. Preparation of pre-emulsion, add 30% raw material water and 50% raw material emulsifier (sodium dodecylbenzene sulfonate) to the pre-emulsification cylinder, turn on the agitator, and input styrene according to the raw material quantity , butyl...

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Abstract

The invention discloses water-based styrene-acrylic emulsion for primer and topcoat integrated metallic paint and a preparation method of the water-based styrene-acrylic emulsion. The raw material of the water-based styrene-acrylic emulsion is composed of the following components of, by weight, 8-13 parts of styrene, 21-26 parts of butyl methacrylate, 2-7 parts of butyl acrylate, 1-5 parts of iso-octyl acrylate, 1-5 parts of acrylic acid, 1-3 parts of phosphate ester functional monomers, 1-3 parts of emulgators, 0.3-0.6 part of persulfate, 01-0.3 part of oxidizing agent, 0.10-0.3 part of reducing agent, and 53 parts of water. The phosphate ester functional monomers are grafted into acrylic based emulsion particles through polymerization reaction, so that the prepared metallic paint and metallic ions have good complexation, and a quite compact protective film is formed; meanwhile, a gloss controllable technology is adopted, and not only are the good water resistance, salt water resistance, salt fog resistance and other corrosion resistance ensured, but also the good glossiness and hardness are achieved. The paint is directly sprayed or brushed on the surface of metal after being prepared, a compact, flat and smooth paint film is formed, and the water-based styrene-acrylic emulsion for the metallic paint combined with the performance requirements of primer and topcoat is obtained.

Description

technical field [0001] The invention relates to the technical field of polymer emulsions used for metal anticorrosion, in particular to a water-based styrene-acrylic emulsion for bottom-surface-in-one metal paint and a preparation method thereof. Background technique [0002] In recent years, with the rapid development of the industry, the increasingly stringent anti-corrosion requirements and the fierce competition in the market, especially the gloss, hardness, anti-corrosion and anti-rust performance of the paint film on the metal surface, the requirements are getting higher and higher. It has the excellent anti-corrosion performance of the primer, but also meets the gloss and hardness requirements of the top coat. Patent application CN102432743A discloses a polymer emulsion for water-based metal anti-corrosion coatings and its preparation method. The raw materials include 13.0-18.0% dry oleic acid modified pre-polymerization intermediate, 16.0-20.0% acrylate monomer body...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/18C08F212/08C08F220/06C08F230/02C09D133/08C09D5/08
CPCC08F220/18C08F220/1804C09D5/08C09D133/08C08F212/08C08F220/1808C08F220/06C08F230/02
Inventor 何诚罗云
Owner 成都巴德富科技有限公司
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