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Environment-friendly anti-corrosive water-based paint and preparation method thereof

A water-based paint, environmentally friendly technology, used in anti-corrosion paint, epoxy resin paint, polyurea/polyurethane paint, etc., can solve the problems of consuming precious energy, low heat resistance, difficult to polish and construction, and achieve a wide range of applications. Fan, low cost, not easy to fall off

Inactive Publication Date: 2018-04-06
安徽嘉中金属材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The molecule of polyvinyl alcohol contains a large number of hydroxyl functional groups, it forms a particularly delicate film, has poor air permeability, and easily absorbs water
resulting in a coating that is not waterproof
From ancient times to the present, both the raw material formula of the paint and the process of the ingredients have been improved countless times, but they are still unsatisfactory. At least there are the following disadvantages: 1. Because the traditional paint contains polyvinyl alcohol, the gloss of the paint is poor and Heat resistance is not high
2. Generally, water-based paint is difficult to polish and apply, easy to crack and peel off, and has a short service life
3. Consume the country's precious energy and pollute the environment
4. Contain heavy metal elements, cause indoor air pollution, and cause great harm to human body during processing

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0023] A preparation method of environmentally friendly anticorrosive water-based paint includes the following steps:

[0024] S1: Add 19 parts of silica waterproof powder, 13 parts of water-based UV polyurethane dispersion, 18 parts of diatomaceous earth, 14 parts of titanium dioxide, and 19 parts of epoxy acrylate into the mixer, add water and stir evenly, then add acrylic emulsion 28 portions, stir while adding, slowly heat to 26℃, stir for 13min;

[0025] S2: Add 3 parts of plasticizer, 6 parts of photoinitiator, 4 parts of dispersant, 4 parts of defoamer, 4 parts of silicone leveling agent, 16 parts of water to the mixed solution obtained in step S1, and react for 2 hours;

[0026] S3: Stir the mixed solution obtained in step S2 at a high speed of 400r / min for 18 minutes, stir evenly, and adjust the viscosity.

Embodiment 1

[0028] A preparation method of environmentally friendly anticorrosive water-based paint includes the following steps:

[0029] S1: Add 18-25 parts of silica waterproof powder, 10-15 parts of water-based UV polyurethane dispersion, 15-20 parts of diatomaceous earth, 10-15 parts of titanium dioxide, and 15-25 parts of epoxy acrylate into the mixer Add water and stir evenly, add 25-35 parts of acrylic emulsion and stir while adding, slowly heat 20-30℃, stir for 10-15min;

[0030] S2: Add 2-4 parts of plasticizer, 5-8 parts of photoinitiator, 3-6 parts of dispersant, 4-6 parts of defoamer, and silicone leveling agent 2 to the mixed solution obtained in step S1 5 parts, 15-25 parts of water, reaction for 2-3h;

[0031] S3: Stir the mixed solution obtained in step S2 at a high speed of 300-500r / min for 15-25min, stir evenly, and adjust the viscosity.

Embodiment 2

[0033] A preparation method of environmentally friendly anticorrosive water-based paint includes the following steps:

[0034] S1: Add 25 parts of silica waterproof powder, 15 parts of water-based UV polyurethane dispersion, 15 parts of diatomaceous earth, 10 parts of titanium dioxide, and 25 parts of epoxy acrylate into the mixer, add water and stir evenly, then add acrylic emulsion 35 portions, stir while adding, slowly heat to 20℃, stir for 10min;

[0035] S2: Add 2 parts of plasticizer, 5 parts of photoinitiator, 3 parts of dispersant, 6 parts of defoamer, 5 parts of silicone leveling agent, 15 parts of water to the mixed solution obtained in step S1, and react for 2 hours;

[0036] S3: Stir the mixed solution obtained in step S2 at a high speed of 500 r / min for 15 minutes, stir evenly, and adjust the viscosity.

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PUM

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Abstract

The invention discloses environment-friendly anti-corrosive water-based paint and a preparation method thereof. The environment-friendly anti-corrosive water-based paint is prepared from 25-35 parts of acrylic emulsion, 20-30 parts of potassium silicate, 18-25 parts of silica waterproof powder, 10-15 parts of water-based UV polyurethane dispersion, 15-20 parts of diatomaceous earth, 10-15 parts oftitanium dioxide, 15-25 parts of epoxy acrylate, 2-4 parts of plasticizer, 5-8 parts of photoinitiator, 3-6 parts of dispersant, 4-6 parts of a defoaming agent, 2-5 parts of an organosilicon levelingagent and 15-25 parts of water. The prepared water-based paint has the advantages of no toxicity, no pollution, environmental protection, zero-grade adhesiveness, no easy falling-off, high corrosionresistance and impact resistance, good covering capacity and good comprehensive performance, and the environment-friendly anti-corrosive water-based paint and the preparation method has a simple production process, a wide application range and low cost, and facilitates industrial production.

Description

Technical field [0001] The invention relates to the technical field of architectural paint production, in particular to an environmentally-friendly and anticorrosive water-based paint and a preparation method thereof. Background technique [0002] Powder coating is a new, solvent-free, 100% solid powder coating. It has the characteristics of no solvent, no pollution, energy and resource saving, reduced labor intensity and high mechanical strength of the coating film. It has two categories: thermoplastic powder coatings and thermosetting powder coatings. Thermoplastic powder coatings are composed of thermoplastic resins, pigments, fillers, plasticizers and stabilizers. Thermoplastic powder coatings include: polyethylene, polypropylene, polyester, polyvinyl chloride, chlorinated polyether, polyamide, cellulose, and polyester. Thermosetting powder coatings are composed of thermosetting resins, curing agents, pigments, fillers and photoinitiators. Thermosetting powder coatings i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D175/04C09D163/10C09D5/08C09D7/61
CPCC09D133/04C08K2003/2241C08K2201/014C08L2205/03C09D5/08C08L75/04C08L63/10C08K13/02C08K3/34C08K3/22C08K3/36
Inventor 张如才
Owner 安徽嘉中金属材料有限公司