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A kind of solvent-free low gloss hydroxyl acrylic acid dispersion and its preparation method and application

A glossy hydroxy acrylic and dispersion technology, used in coatings, polyurea/polyurethane coatings, etc., can solve the problems of time-consuming and expensive, and achieve the effect of high economic value, sufficient blue light and good fullness

Active Publication Date: 2021-07-30
肇庆新广利化工实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this is very time consuming and expensive

Method used

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  • A kind of solvent-free low gloss hydroxyl acrylic acid dispersion and its preparation method and application
  • A kind of solvent-free low gloss hydroxyl acrylic acid dispersion and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A solvent-free low-gloss hydroxyl acrylic dispersion, the main components and corresponding parts by mass are as follows: 10 g glycidyl tertiary carbonate, 1 g alcohol ester dodecyl, 0.02 g butyl titanate, 5.0 g acrylic acid, methacrylic acid Methyl ester 8.43 g, isobornyl methacrylate 5.9 g, butyl acrylate 6.59 g, hydroxyethyl methacrylate 9.64 g, butyl methacrylate 2.34 g, di-tert-amyl peroxide 1.5 g, N-N dimethyl 1.16 g of ethanolamine, the rest is deionized water, a total of 100 g.

[0031] The preparation method of the above-mentioned solvent-free low-gloss hydroxyacrylic dispersion is as follows: First, the first step is to weigh epoxy compound, alcohol ester dodeca, and butyl titanate to make a primer, raise the temperature to 150-155 °C, and divide it into two parts in the above solution. Add the mixture of initiator, methacrylic acid and acrylate monomers step by step. After the dropwise addition, keep the temperature for 2 h, cool down to 90 °C, add neutralizi...

Embodiment 2

[0033] A solvent-free low-gloss hydroxyl acrylic dispersion, the main components and corresponding parts by mass are as follows: glycidyl tertiary carbonate 12 g, alcohol ester dodeca 0.5 g, butyl titanate 0.01 g, acrylic acid 4.1 g, methacrylic acid 5.53 g methyl ester, 5.9 g NCA, 6.59 g butyl acrylate, 9.64 g hydroxyethyl methacrylate, 2.34 g butyl methacrylate, 1.2 g di-tert-butyl peroxide, 1.5 g N-N dimethylethanolamine, The rest is deionized water, a total of 100 g.

[0034] The preparation method of the above-mentioned solvent-free low-gloss hydroxyacrylic acid dispersion is the same as that in Example 1.

Embodiment 3

[0036] A solvent-free low-gloss hydroxyl acrylic dispersion, the main components and corresponding parts by mass are as follows: glycidyl ether of tertiary carbonic acid 12 g, alcohol ester dodecane 0.5 g, butyl titanate 0.01 g, acrylic acid 4.1 g, methyl acrylate 5.53 g, NCA5.9 g, butyl acrylate 6.59 g, hydroxyethyl acrylate 9.64 g, methyl methacrylate 2.34 g, di-tert-butyl peroxide 1.2 g, N-N dimethylethanolamine 1.5 g, the rest is Ionized water, 100 g in total.

[0037] The preparation method of the above-mentioned solvent-free low-gloss hydroxyacrylic acid dispersion is the same as that in Example 1.

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Abstract

The invention discloses a solvent-free low-gloss hydroxyl acrylic dispersion and its preparation method and application. The main components and corresponding parts by mass are as follows: 10-12 parts of organic epoxy compound, 0.5-1 part of alcohol ester dodecane, titanic acid 0.01-0.02 parts of butyl ester, 1-2 parts of initiator, 4.1-5.0 parts of acrylic acid, 30-32.9 parts of acrylate monomer, 1.16-1.5 parts of neutralizer, and the rest are deionized water, totaling 100 parts; The solid content is 47±2.0%, the viscosity is 2000‑3000 mpa.s, the 60° gloss of the paint film is 48‑60, and 0 VOC. The preparation method is as follows: first, mix epoxy organic compound, alcohol ester dodeca, and butyl titanate, and heat up to 150-155°C; then slowly add methacrylic acid and its ester mono Mixture of body and initiator; after dropwise addition, keep warm for 2 hours; cool down to 90°C, add neutralizer to neutralize, slowly add deionized water dropwise, stir to disperse, and discharge to obtain. The hydroxyacrylic acid dispersion of the invention has the characteristics of high solid content, low viscosity, excellent paint fullness, low gloss, excellent water resistance and solvent resistance, and the like.

Description

technical field [0001] The invention belongs to the field of preparation of water-based two-component low-gloss polyurethane, and in particular relates to a solvent-free low-gloss hydroxyl acrylic dispersion and its preparation method and application. Background technique [0002] Two-component polyurethane is a polyurethane resin formed by curing and cross-linking compounds containing hydroxyl functional groups and polyisocyanate curing agents. Two-component polyurethane has received more and more attention in industrial production, and its production scale is also growing. There are more and more needs to prepare two-component polyurethane self-drying paints with hydroxyacrylic acid dispersions. Two-component polyurethanes have been widely used in many industries because of their good fullness, strong water resistance and aging resistance. The one-component polyurethane paint has a higher gloss, but some special industries require the resin paint film to have a lower gloss...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/20C08F220/06C08F220/14C08F220/18C09D175/04C08G18/62
Inventor 王元有束影钱亚兵金党琴陈锁金
Owner 肇庆新广利化工实业有限公司