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High-gloss water-based paint and preparation method thereof

A high-gloss, water-based paint technology, applied in the coating and other directions, can solve the problems of low volatile organic matter content, paint film swelling, prickly heat, etc., to reduce the density and viscosity, high hardening speed, avoid The effect of prickly heat

Inactive Publication Date: 2021-01-05
湖北京海泰建材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Water-based paint is a kind of paint with water as the main solvent, and the content of volatile organic substances is extremely low. Therefore, it is an important development direction of paint from the perspective of environmental protection. However, the water-based paint in the prior art is very easy to use during use. There is a case of prickly heat, this is because the water-based paint will add a curing agent when it is used, and the surface of the paint film will be cured and dried under the action of the curing agent. If the internal structure still contains the gas to be released, and the gas If it cannot be discharged, it will eventually cause the paint film to swell and become many tiny bubbles, forming a phenomenon similar to prickly heat
[0003] To solve this problem, adjusting the formula structure is often used at present, such as reducing the amount of curing agent, the amount of curing agent is reduced, and the drying speed of the paint film is slower, so as to give more time for the internal air bubbles to discharge, but in this way, in order to The lower the amount of curing agent, the better the glossiness of the paint surface, and the reduction of prickly heat. The lower the amount of curing agent, the lower the drying speed of the water-based paint, which is not conducive to the improvement of production efficiency.

Method used

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  • High-gloss water-based paint and preparation method thereof
  • High-gloss water-based paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Preparation of modified ethyl acrylate:

[0030] Weigh 10 parts of polyvinyl alcohol and 5 parts of ethyl methacrylate, mix and stir evenly, then weigh 10 parts of water and 2 parts of nitric acid, mix them evenly, add them to ethyl methacrylate at 30°C, keep stirring until Dissolve ethyl acrylate, heat and stir for 10 minutes, then weigh 1 part of cerium ammonium nitrate and put it into the mixed solution, heat it for 30 minutes, then add 5 parts of p-phenol, stir well, then add 30 parts of acetone, stir to dissolve, filter, remove The filtrate was obtained to obtain modified ethyl acrylate, which was kept for later use after drying.

[0031] Preparation of modified dispersant:

[0032] Weigh 10 parts of γ-alumina fibers and 20 parts of KH550 silane coupling agent, mix them and perform ultrasonic treatment in an ultrasonic device for 10 minutes, filter and dry to obtain a modified dispersant.

[0033] Preparation of modified curing agent:

[0034] Weigh 2 parts of s...

Embodiment 2

[0041] Preparation of modified ethyl acrylate:

[0042] Weigh 11 parts of polyvinyl alcohol and 6 parts of ethyl methacrylate, mix and stir evenly, then weigh 11 parts of water and 3 parts of nitric acid, mix them evenly, add them to ethyl methacrylate at 35 ° C, keep stirring until Dissolve ethyl acrylate, heat and stir for 10 minutes, then weigh 2 parts of cerium ammonium nitrate and put it into the mixed solution, heat it for 30 minutes, then add 6 parts of p-phenol, stir well, then add 35 parts of acetone, stir to dissolve, filter, remove The filtrate was obtained to obtain modified ethyl acrylate, which was kept for later use after drying.

[0043] Preparation of modified dispersant:

[0044] Weigh 12 parts of γ-alumina fibers and 25 parts of KH550 silane coupling agent, mix them and perform ultrasonic treatment in an ultrasonic device for 15 minutes, filter and dry to obtain a modified dispersant.

[0045] Preparation of modified curing agent:

[0046] Weigh 4 parts o...

Embodiment 3

[0053] Preparation of modified ethyl acrylate:

[0054] Weigh 12 parts of polyvinyl alcohol and 7 parts of ethyl methacrylate, mix and stir evenly, then weigh 12 parts of water and 4 parts of nitric acid, mix them evenly, add them to ethyl methacrylate at 40 ° C, keep stirring until Dissolve ethyl acrylate, heat and stir for 10 minutes, then weigh 3 parts of cerium ammonium nitrate and put it into the mixed solution, heat it for 30 minutes, then add 7 parts of p-phenol, stir well, then add 40 parts of acetone, stir to dissolve, filter, remove The filtrate was obtained to obtain modified ethyl acrylate, which was kept for later use after drying.

[0055] Preparation of modified dispersant:

[0056] Weigh 14 parts of γ-alumina fibers and 30 parts of KH550 silane coupling agent, mix them and perform ultrasonic treatment in an ultrasonic device for 20 minutes, filter and dry to obtain a modified dispersant.

[0057] Preparation of modified curing agent:

[0058] Weigh 6 parts o...

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Abstract

The invention provides high-gloss water-based paint and a preparation method thereof.The water-based paint is prepared from modified ethyl acrylate, a filler, a modified dispersing agent, an antifoaming agent, a thickener, a leveling agent, a wetting agent, a modified curing agent and water, and the preparation method comprises the steps that mixing the modified dispersing agent, the modified ethyl acrylate and the water to prepare a first mixed solution; and adding the filler, the antifoaming agent, the thickener, the leveling agent and the wetting agent into the first mixed solution to prepare a second mixed solution, adding the modified curing agent into the second mixed solution, and uniformly stirring to obtain the high-gloss water-based paint. According to the invention, the phenomenon that prickly heat easily occurs on the surface of a paint film of conventional water-based paint is overcome, and meanwhile, the improved water-based paint still has good surface performance and has good application prospect.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a high-gloss water-based paint and a preparation method thereof. Background technique [0002] Water-based paint is a kind of paint with water as the main solvent, and the content of volatile organic substances is extremely low. Therefore, it is an important development direction of paint from the perspective of environmental protection. However, the water-based paint in the prior art is very easy to use during use. There is a case of prickly heat, this is because the water-based paint will add a curing agent when it is used, and the surface of the paint film will be cured and dried under the action of the curing agent. If the internal structure still contains the gas to be released, and the gas If it cannot be discharged, it will eventually cause the paint film to swell and become many tiny bubbles, forming a phenomenon similar to prickly heat. [0003] To solve this problem, adjusting ...

Claims

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Application Information

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IPC IPC(8): C09D4/02C09D7/62C09D7/61C09D7/65C09D7/47C09D7/43C09D7/44
CPCC09D4/00C09D7/43C09D7/44C09D7/47C09D7/61C09D7/62C09D7/65
Inventor 柯亮陈得杨
Owner 湖北京海泰建材科技有限公司
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