Preparation method of epoxy-modified ultra-matte acrylic acid coating

A technology of epoxy modification and acrylic acid, which is applied in the field of coatings, can solve problems such as poor salt spray resistance and light aging resistance, low testing standards, and difficult application of coatings, etc., to achieve reduced gloss and appearance leveling, excellent Good physical and mechanical properties and storage stability

Active Publication Date: 2021-01-26
HAOLISEN CHEM TECH (JIANGSU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The coating of existing acrylic paint, its weak point is that salt spray resistance and light aging resistance are not good, and prior art is lower to the detection test standard of coating coating, artificially accelerated salt spray test generally only has 300h, artificially accelerated The light aging test is generally only 500h. In a longer test, it is often difficult to obtain satisfactory results for general paint coatings.
In addition, the gloss of general paint coatings is as high as about 70°, but in some actual use scenarios, the paint coating needs to be in a matte state, and it is difficult to apply general paints.

Method used

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  • Preparation method of epoxy-modified ultra-matte acrylic acid coating
  • Preparation method of epoxy-modified ultra-matte acrylic acid coating
  • Preparation method of epoxy-modified ultra-matte acrylic acid coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] S1. Formula and preparation method of epoxy modified ultra-matte acrylic resin:

[0032]

[0033]

[0034] Glycidyl methacrylate, hydroxyethyl methacrylate, methyl methacrylate, isooctyl acrylate, trifluorooctyl methacrylate, silane coupling agent, styrene, benzene peroxide Formyl is mixed evenly and is called mixed solution A; the formula amount of benzoyl peroxide and butyl acetate is mixed evenly and is called mixed solution B. Add methyl isobutyl ketone, ethylene glycol butyl ether and E44 epoxy resin into a reaction vessel with a stirrer and a condenser according to the formula amount, blow nitrogen gas, raise the temperature to 115°C, and start adding the mixed solution A dropwise. After 4 hours of dripping, keep warm for half an hour, then add the mixed solution B dropwise, drop it for half an hour, then keep warm for 1 hour, cool down to 105°C, then add methyldiethanolamine dropwise according to the formula, drop it for half an hour, and heat up after the ...

Embodiment 2

[0051] S1. Formula and preparation method of epoxy modified ultra-matte acrylic resin:

[0052]

[0053] Glycidyl methacrylate, hydroxyethyl methacrylate, methyl methacrylate, isooctyl acrylate, trifluorooctyl methacrylate, silane coupling agent, styrene, benzene peroxide Formyl is mixed evenly and is called mixed solution A; the formula amount of benzoyl peroxide and butyl acetate is mixed evenly and is called mixed solution B. Add methyl isobutyl ketone, ethylene glycol butyl ether and E44 epoxy resin into a reaction vessel with a stirrer and a condenser according to the formula amount, blow nitrogen gas, raise the temperature to 115°C, and start adding the mixed solution A dropwise. After 4 hours of dripping, keep warm for half an hour, then add the mixed solution B dropwise, drop it for half an hour, then keep warm for 1 hour, cool down to 105°C, then add methyldiethanolamine dropwise according to the formula, drop it for half an hour, and heat up after the reaction Am...

Embodiment 3

[0070] S1. Formula and preparation method of epoxy modified ultra-matte acrylic resin:

[0071]

[0072]

[0073] Glycidyl methacrylate, hydroxyethyl methacrylate, methyl methacrylate, isooctyl acrylate, trifluorooctyl methacrylate, silane coupling agent, styrene, benzene peroxide Formyl is mixed evenly and is called mixed solution A; the formula amount of benzoyl peroxide and butyl acetate is mixed evenly and is called mixed solution B. Add methyl isobutyl ketone, ethylene glycol butyl ether and E44 epoxy resin into a reaction vessel with a stirrer and a condenser according to the formula amount, blow nitrogen gas, raise the temperature to 115°C, and start adding the mixed solution A dropwise. After 4 hours of dripping, keep warm for half an hour, then add the mixed solution B dropwise, drop it for half an hour, then keep warm for 1 hour, cool down to 105°C, then add diethanolamine dropwise according to the formula, drop it for half an hour, and raise the temperature to...

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Abstract

The invention discloses a preparation method of an epoxy-modified ultra-matte acrylic acid coating. The epoxy-modified ultra-matte acrylic acid coating is specifically prepared from epoxy-modified ultra-matte acrylic emulsion and color paste in proportion. The coating product provided by the invention has good storage stability, has excellent physical and mechanical properties, chemical resistance, salt spray resistance and light aging resistance after electrophoretic coating, and can pass an artificial accelerated aging test and an artificial accelerated salt spray test for thousands of hours. The coating is suitable for protecting and coating the surface of a workpiece with chemical resistance and ultralow gloss requirements.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to a preparation method of epoxy-modified ultra-matte acrylic coatings. Background technique [0002] Low-carbon environmental protection is the trend that is being pursued in today's society. Water-based coatings and their products meet the requirements of low-carbon environmental protection, so there is great potential for development. Compared with traditional solvent-based coatings, water-based coatings have the characteristics of environmental protection and excellent performance, and have become the mainstream of the development of the coatings industry. The coating of existing acrylic paint, its weak point is that salt spray resistance and light aging resistance are not good, and prior art is lower to the detection test standard of coating coating, artificially accelerated salt spray test generally only has 300h, artificially accelerated The light aging test is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D7/61
CPCC09D175/04C09D7/61C08K2003/2241C08K3/22C08K3/04C08K3/346
Inventor 徐庆刘薇薇赵颖胡浩东朱凯祥黄磊贾龙娟
Owner HAOLISEN CHEM TECH (JIANGSU) CO LTD
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