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Water acrylic resin and preparing method thereof

A water-based acrylic and acrylic technology, applied in the coating and other directions, to achieve the effects of long storage time, small particle size and excellent water resistance

Active Publication Date: 2008-02-13
上海市涂料研究所有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention not only aims to solve the ubiquitous toxic and harmful solvent gas release problem of general solvent-based acrylic resin coatings, but also overcomes the deficiencies of the water-based acrylic resin prepared by the above method, so that the properties of the paint film such as adhesion, solvent resistance, water resistance Performance and other properties have been comprehensively improved, and the hardness is adjustable and widely applicable

Method used

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  • Water acrylic resin and preparing method thereof
  • Water acrylic resin and preparing method thereof
  • Water acrylic resin and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The composition of raw materials for preparing waterborne acrylic resin is shown in Table 3.

[0042] Table 3 Preparation of water-based acrylic resin (embodiment 1) with raw material composition

[0043] Component

mass (g)

Propylene glycol butyl ether

8.3

Glycidyl tertiary carbonate

24.7

acrylic

10.7

Hydroxyethyl methacrylate

3.2

Methyl methacrylate

19.8

Butyl acrylate

7.5

Styrene

14.6

tert-butyl peroxybenzoate

2.8

Dimethylethanolamine

8.4

Deionized water

160.0

[0044] The specific preparation method is as follows: add propylene glycol butyl ether and glycidyl tertiary carbonate to a 500mL four-necked flask equipped with a thermometer, a stirring device and a condenser, pass through dry nitrogen protection, start stirring and raise the temperature to 150-155°C; then start Add dropwise the mixture of acrylic acid, hydr...

Embodiment 2

[0051] The composition of raw materials for preparing water-based acrylic resin in this example is shown in Table 5. Different from Example 1, in this example, the amount of methyl methacrylate in the raw material components was increased, the amount of butyl acrylate was reduced, and methyl styrene was used instead of styrene.

[0052] Table 5 prepares waterborne acrylic resin (embodiment 2) with raw material composition

[0053] Component

[0054] The specific preparation method is as follows: Add propylene glycol butyl ether and glycidyl tert-carbonate into a 500mL four-necked flask equipped with a thermometer, a stirring device and a condenser, pass through dry nitrogen protection, start stirring and raise the temperature to 150-155°C; then start Add dropwise the mixture of acrylic acid, hydroxyethyl methacrylate, methyl methacrylate, butyl acrylate, methylstyrene and tert-butyl peroxybenzoate, wherein 7g of acrylic acid, 2.4g of tert-butyl peroxybenzoate, Add ...

Embodiment 3

[0061] In this example, di-tert-amyl peroxide was used as the initiator, and the composition of the raw materials used to prepare the resin is shown in Table 7.

[0062] Table 7 prepares waterborne acrylic resin (embodiment 3) with raw material composition

[0063] Component

mass (g)

Propylene glycol butyl ether

8.2

Glycidyl tertiary carbonate

24.7

acrylic

10.7

Hydroxyethyl methacrylate

3.2

Methyl methacrylate

19.8

Butyl acrylate

7.5

Styrene

14.6

Di-tert-amyl peroxide

3.3

Dimethylethanolamine

8.0

[0064] Deionized water

160.0

[0065] The specific preparation method is as follows: Add propylene glycol butyl ether and glycidyl tert-carbonate into a 500mL four-necked flask equipped with a thermometer, a stirring device and a condenser, pass through dry nitrogen protection, start stirring and raise the temperature to 15...

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Abstract

The utility model relates to a water-based acrylic resin paintand the manufacturing method. The basic ray materials comprise acrylic monomer, styrene monomer, initiator, cosolvent, and active solvent. The utility model is characterized in that the acrylic monomer comprises acrylic derivative with hydroxyl; the cosolvent is ether alcohol solvent; the active solvent is butyl carbonate ethylene derivative active solvent; the initiator is peroxide initiator; and the neutralizer is Amine neutralizer. The resin is manufactured through two-step process. In the first step, water-based acrylic resin prepolymer is manufactured and is then manufactured into resin latex through inner emulsification on the second step. The product is of long storage time and is of no added emulsifier. Under the room temperature, the product can cross-link with water-based isocyanate curing agent to form membrane. The utility model is of excellent membrane, good water resistance, anti-scrubbing property, chemical resistance and sullying resistance.

Description

technical field [0001] The invention relates to the paint industry in the field of chemical industry, in particular to a basic raw material used in the manufacture of water-based paint—water-based acrylic resin and a preparation method thereof. Background technique [0002] With the progress of society and the improvement of people's living standards, people pay more and more attention to environmental protection. Many corresponding policies and regulations have been promulgated at home and abroad to strictly limit and control the discharge of toxic and harmful substances. As a major application of organic solvents, the coatings industry has become more and more aware of this and has turned to the development of water-based coatings, thereby promoting the gradual increase in the demand for water-based coatings in the coatings market. Water-based acrylic resin is favored by the paint industry because of its many advantages such as easy synthesis, low cost, and low organic vo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/06C08J3/03C08F212/08C09D133/02
Inventor 郑会廉匡文君
Owner 上海市涂料研究所有限公司
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