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Waterborne organosilicone coating and preparation method thereof

A technology of silicone coatings and silicone emulsions, applied in anti-corrosion coatings, polyurea/polyurethane coatings, coatings, etc., can solve problems such as low heat resistance, consumption of precious energy, and indoor air pollution, and achieve low cost, The effect of wide application range and simple production process

Inactive Publication Date: 2018-06-29
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 for water-based silicone paint, comprising the steps of:

[0024] S1: Add 19 parts of silicone emulsion, 13 parts of hexafunctional acrylic polyurethane acid emulsion, 18 parts of quartz powder, 14 parts of water-based solid acrylic resin, and 19 parts of polyurethane acrylate into the mixer, add water and stir well , add 28 parts of polyethylene glue, stir while adding, slowly heat to 26°C, and stir for 13 minutes;

[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 into the mixed solution obtained in step S1, and react for 2 hours;

[0026] S3: The mixed solution obtained in step S2 was stirred at a high speed of 400r / min for 18min, stirred evenly, and obtained after adjusting the viscosity.

Embodiment 1

[0028] A preparation method for water-based silicone paint, comprising the steps of:

[0029] S1: Mix 18-25 parts of silicone emulsion, 10-15 parts of hexafunctional acrylic polyurethane acid emulsion, 15-20 parts of quartz powder, 10-15 parts of water-based solid acrylic resin, and 15-25 parts of polyurethane acrylate Add to the mixer, add water and stir evenly, add 25-35 parts of polyethylene glue, stir while adding, slowly heat to 20-30°C, 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, 2- 5 parts, 15-25 parts of water, reaction 2-3h;

[0031] S3: The mixed solution obtained in step S2 was stirred at a high speed of 300-500r / min for 15-25min, stirred evenly, and obtained after adjusting the viscosity.

Embodiment 2

[0033] A preparation method for water-based silicone paint, comprising the steps of:

[0034] S1: Add 25 parts of silicone emulsion, 15 parts of hexafunctional acrylic polyurethane acid emulsion, 15 parts of quartz powder, 10 parts of water-based solid acrylic resin, and 25 parts of polyurethane acrylate into the mixer, add water and stir well , add 35 parts of polyethylene glue and stir while adding, slowly heat to 20°C, and stir for 10 minutes;

[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, and 15 parts of water into the mixed solution obtained in step S1, and react for 2 hours;

[0036] S3: The mixed solution obtained in step S2 was stirred at a high speed of 500r / min for 15min, stirred evenly, and obtained after adjusting the viscosity.

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PUM

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Abstract

The invention discloses waterborne organosilicone coating and a preparation method thereof. The waterborne organosilicone coating is prepared from 25-35 parts of polyethylene rubber, 20-30 parts of heavy calcium carbonate, 18-25 parts of organosilicon emulsion, 10-15 parts of hexa-functional group propylene polyurethane acid emulsion, 15-20 parts of quartz powder, 10-15 parts of waterborne solid acrylic resin, 15-25 parts of urethane acrylate, 2-4 parts of plasticizers, 5-8 parts of photoinitiators, 3-6 parts of dispersants, 4-6 parts of defoamers, 2-5 parts of organosilicon leveling agents and 15-25 parts of water. The waterborne coating prepared by the invention has no poison or pollution, zero adhesion, high corrosion resistance and shock strength, favorable covering power, good comprehensive performance, and is difficult to fall off; the invention has the advantages of simple production process, wide application range, low cost and is beneficial to industrialized production.

Description

technical field [0001] The invention relates to the technical field of architectural paint production, in particular to a water-based organosilicon paint and a preparation method thereof. Background technique [0002] Powder coating is a new type of solvent-free, 100% solids powder coating. It has the characteristics of no solvent, no pollution, saving energy and resources, reducing labor intensity and high mechanical strength of the coating film. It has two categories: thermoplastic powder coating and thermosetting powder coating. 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, polyester. Thermosetting powder coatings are composed of thermosetting resins, curing agents, pigments, fillers and photoinitiators. Thermosetting powder coatings include: epoxy resin,...

Claims

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Application Information

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IPC IPC(8): C09D123/06C09D183/04C09D175/14C09D133/00C09D5/08C09D7/61C09D7/63
CPCC09D123/06C08K2003/265C08L2205/025C08L2205/035C09D5/08C08L83/04C08L75/14C08L33/00C08K3/36C08K5/12C08K3/26C08K13/02
Inventor 张如才
Owner 安徽嘉中金属材料有限公司