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Preparation method and application of water-based acrylic resin for metal surface spraying

A water-based acrylic, metal surface technology, applied in the coating and other directions, can solve the problems of limited application field of water-based acrylic resin, insufficient adhesion and hardness, unavoidable and other problems, to achieve excellent adhesion, excellent water resistance, and improved safety. Effect

Active Publication Date: 2020-09-22
BELIKE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although water-based acrylic resin has the advantages of non-polluting, non-toxic, non-irritating, good gloss, good chemical resistance, high stability, safe production, and low price, it also has its own shortcomings that cannot be eliminated, mainly in the resin After the film is dried, the water resistance is poor, the adhesion and hardness are insufficient, which limits the application field of water-based acrylic resin

Method used

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  • Preparation method and application of water-based acrylic resin for metal surface spraying
  • Preparation method and application of water-based acrylic resin for metal surface spraying

Examples

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Effect test

Embodiment 1

[0026] A preparation method for spraying water-based acrylic resin on a metal surface, comprising the following steps:

[0027] (1) Mix isopropanol and epoxy resin E-44 to obtain mixed solution A, stir and heat to 84°C;

[0028] (2) Mix organosiloxane and ethanol at a mass ratio of 1:10 to obtain mixed solution B, mix ethanol, water and hydrochloric acid to obtain mixed solution C with a pH value of 3, and mix mixed solution C, silane The coupling agent was added to the mixed solution B and reacted for 6 hours to obtain a silica sol. The molar ratio of the water in the mixed solution C to the organosiloxane in the mixed solution B was 1:1.5, and the amount of ethanol in the mixed solution B was the mixed solution B , 60% of the total amount of ethanol in C, the mol ratio of silane coupling agent and organosiloxane is 1: 45;

[0029] (3) Methyl methacrylate, hydroxyethyl acrylate, methacrylic acid and n-butyl acrylate are mixed to obtain a monomer mixture, and then 2 / 3 parts o...

Embodiment 2

[0033] A preparation method for spraying water-based acrylic resin on a metal surface, comprising the following steps:

[0034] (1) Mix isopropanol and epoxy resin E-51 to obtain mixed solution A, stir and heat to 85°C;

[0035] (2) Mix organosiloxane and ethanol at a mass ratio of 1:5 to obtain mixed solution B, mix ethanol, water and oxalic acid to obtain mixed solution C with a pH value of 6, and mix mixed solution C, silane The coupling agent is added to the mixed solution B and reacted for 1 hour to obtain a silica sol. The molar ratio of the water in the mixed solution C to the organosiloxane in the mixed solution B is 1:0.5, and the amount of ethanol in the mixed solution B is , 40% of the total amount of ethanol in C, the mol ratio of silane coupling agent and organosiloxane is 1: 20;

[0036] (3) Methyl methacrylate, hydroxyethyl acrylate, methacrylic acid and n-butyl acrylate are mixed to obtain a monomer mixture, and then 2 / 3 parts of azobisisoheptanonitrile are di...

Embodiment 3

[0040] A preparation method for spraying water-based acrylic resin on a metal surface, comprising the following steps:

[0041] (1) Mix isopropanol and epoxy resin E-52 to obtain mixed solution A, stir and heat to 88°C;

[0042] (2) Mix organosiloxane and ethanol at a mass ratio of 1:20 to obtain mixed solution B, mix ethanol, water and nitric acid to obtain mixed solution C with a pH value of 2, and mix mixed solution C, silane The coupling agent is added to the mixed solution B and reacted for 10 hours to obtain a silica sol. The molar ratio of the water in the mixed solution C to the organosiloxane in the mixed solution B is 1:2, and the amount of ethanol in the mixed solution B is , 70% of the total amount of ethanol in C, the mol ratio of silane coupling agent and organosiloxane is 1: 50;

[0043](3) Mix methyl methacrylate, hydroxyethyl acrylate, methacrylic acid and n-butyl acrylate to obtain a monomer mixture, and then dissolve 2 / 3 parts of diisopropyl peroxydicarbona...

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Abstract

The invention discloses a preparation method and application of water-based acrylic resin for metal surface spraying. The water-based acrylic resin is prepared by graft polymerization of a mixed monomer consisting of methyl methacrylate, hydroxyethyl acrylate, methacrylic acid and n-butyl acrylate and silicon dioxide modified by epoxy resin and a silane coupling agent. The water-based acrylic resin coating prepared by the method has excellent adhesive force, high hardness and good water resistance, the coating performance is obviously improved, and the water-based acrylic resin can be used forpreparing water-based coatings.

Description

technical field [0001] The invention relates to a water-based acrylic resin, in particular to a preparation method and application of the water-based acrylic resin for spraying metal surfaces, and belongs to the technical field of polymer materials. Background technique [0002] Acrylic resin, the English name is Acrylic acid Polymers, the Chinese alias is acrylic resin emulsion, and the molecular formula is (C3H4O2)n. It is used to prepare finishing agents for leather and some high-end products, and to prepare acrylic resin paints. It is a chemical intermediate. Water-based acrylic resin coatings are the fastest-growing and most diverse non-polluting coatings among water-based coatings. Water-based acrylic resin uses water as a solvent, is non-toxic and tasteless, has the characteristics of low cost, and does not pollute the environment. In addition, the preparation of water-based acrylic paint is more simple and convenient. It can be flexibly designed according to the act...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F283/10C08F220/14C08F220/20C08F220/06C08F220/18C08K3/36C09D151/08
CPCC08F283/10C08K3/36C09D151/08C08F220/14C08F220/20C08F220/06C08F220/1804
Inventor 郭向荣王海
Owner BELIKE CHEM