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Preparation method of low-temperature cured water-based paint resin

A water-based paint and resin technology, applied in coatings and other directions, can solve the problems of high energy consumption, unable to meet the environmental protection concept of energy saving and emission reduction, and achieve the effect of protecting the environment, good gloss and reducing environmental pollution

Inactive Publication Date: 2022-01-28
徐登科
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the existing coatings consume a lot of energy during preparation, which cannot meet the environmental protection concept of energy saving and emission reduction.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] This embodiment discloses a kind of preparation method of the waterborne coating resin of low temperature curing, comprises the following steps:

[0023] S1. After mixing 270kg of phthalic acid glycosides, 130kg of isophthalic acid, 205kg of trimethylolpropane, and 283kg of neopentyl glycol, the temperature is raised, and the reaction is until transparent;

[0024] S2. After the reaction, cool down to 150°C, add 350kg of BCS and 185kg of trimellitic anhydride, and heat up again for 3 hours;

[0025] S3. After the second heating reaction, lower the temperature to 150°C, then add 420kg of organic silicon intermediate, and react for 3 hours until it becomes transparent to obtain a solvent-based resin;

[0026] S4. Take 100 kg of the solvent-based resin described in S3, add 4 kg of BCS to it, and use a dispersion cylinder to shear and stir; then add 8 kg of dimethylethanolamine, and shear and stir again; then add 140 kg of deionized water and stir evenly to prepare a low-te...

Embodiment 2

[0028] This embodiment discloses a kind of preparation method of the waterborne coating resin of low temperature curing, comprises the following steps:

[0029] S1. After mixing 300kg of phthalic acid glycosides, 150kg of isophthalic acid, 200kg of trimethylolpropane, and 287kg of neopentyl glycol, the temperature is raised, and the reaction is until transparent;

[0030] S2. After the reaction, cool down to 150°C, add 380kg of BCS and 195kg of trimellitic anhydride, and heat up again for 3 hours;

[0031] S3. After the second heating reaction, lower the temperature to 150°C, then add 450kg of organic silicon intermediate, and react for 3 hours until it becomes transparent to obtain a solvent-based resin;

[0032] S4. Take 100 kg of the solvent-based resin described in S3, add 6 kg of BCS to it, and use a dispersion cylinder to shear and stir; then add 5 kg of dimethylethanolamine, and shear and stir again; then add 140 kg of deionized water and stir evenly to prepare a low-te...

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PUM

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Abstract

The invention discloses a preparation method of low-temperature cured water-based paint resin. The preparation method comprises the following steps: mixing phthalate glycoside, isophthalic acid, trimethylolpropane and neopentyl glycol, heating, and making reaction; and cooling, adding BCS and trimellitic anhydride, heating again, reacting and the like. The preparation method is simple in steps and low in energy consumption in the preparation process, and conforms to the concept of energy conservation and environmental protection. Paint prepared by the invention is low in VOC release amount, and can be used for reducing environmental pollution and protecting the environment and the body health of people. The paint has high glossiness, high temperature resistance and large adhesive force, and a formed coating is smooth and convenient to clean.

Description

technical field [0001] The invention relates to the technical field of chemical industry, in particular to a method for preparing a low-temperature curing water-based paint resin. Background technique [0002] Paint, as a protective layer covering the surface of objects or forming a decorative layer, is widely used in various fields, such as industrial and agricultural machinery, buildings, transportation tools, furniture and other utensils. Generally, paints contain volatile organic compounds (Volatile Organic Compound, abbreviated as VOC), and the volatile organic compounds refer to any organic compounds in paint products whose boiling point is not greater than 250° C. under normal temperature and pressure. With people's social practice and research, the harmfulness of VOC to human beings and the environment has been increasingly recognized by people, and has received widespread attention. For example, long-term inhalation of volatile organic compounds can cause fatigue, l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G77/06C09D183/04C09D7/20
CPCC08G77/06C09D183/04C09D7/20
Inventor 徐登科徐登峰
Owner 徐登科
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