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Preparation method of corrosion-resistant environment-friendly coating

An environmentally friendly coating and corrosion-resistant technology, applied in anti-corrosion coatings, polyurea/polyurethane coatings, coatings, etc., can solve problems such as poor compatibility with methylphenyl silicone rubber, and achieve stable product quality and excellent corrosion resistance Effect

Inactive Publication Date: 2020-12-25
谢婉雯
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the present invention, ethyl orthosilicate is used as curing agent, and dibutyltin dilaurate is used as catalyst to mix the second intermediate with the dissolved methyl phenyl silicone rubber, modify the base phenyl silicone rubber, and pass through active The siloxane group and the active hydrogen have a ring-opening reaction, and the second intermediate is grafted on the methyl phenyl silicon, which solves the technical problem of poor compatibility between the first intermediate and the methyl phenyl silicone rubber, and can Imparts excellent corrosion resistance to prepared coatings

Method used

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  • Preparation method of corrosion-resistant environment-friendly coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A preparation method for corrosion-resistant environmental protection paint, comprising the steps of:

[0029] The first step is to weigh the following raw materials in parts by weight: 55 parts of modified silicone, 25 parts of environmentally friendly emulsion, 8 parts of nanofillers, 1 part of polyvinylpyrrolidone, 0.5 parts of magnesium stearate, and 55 parts of absolute ethanol;

[0030] Step 2: Add modified silicone, environmentally friendly emulsion and magnesium stearate into absolute ethanol, heat in a water bath at 40°C, stir for 30 minutes, transfer to a dispersion tank and heat up to 60°C, at this temperature, use 500r / min Disperse at a rotating speed for 45 minutes to obtain a mixed solution;

[0031] The third step is to add nano fillers to the mixed solution prepared in the second step, disperse for 30 minutes at a speed of 160r / min, add polyvinylpyrrolidone, continue to disperse for 1h, transfer to a ball mill, and ball mill for 3h at a speed of 400r / min...

Embodiment 2

[0041] A preparation method for corrosion-resistant environmental protection paint, comprising the steps of:

[0042] The first step is to weigh the following raw materials in parts by weight: 60 parts of modified silicone, 26 parts of environmental protection emulsion, 10 parts of nano filler, 2 parts of polyvinylpyrrolidone, 1.8 parts of magnesium stearate, 56 parts of absolute ethanol;

[0043] Step 2: Add modified silicone, environmentally friendly emulsion and magnesium stearate into absolute ethanol, heat in a water bath at 40°C, stir for 30 minutes, transfer to a dispersion tank and heat up to 60°C, at this temperature, use 500r / min Disperse at a rotating speed for 45 minutes to obtain a mixed solution;

[0044] The third step is to add nano fillers to the mixed solution prepared in the second step, disperse for 30 minutes at a speed of 160r / min, add polyvinylpyrrolidone, continue to disperse for 1h, transfer to a ball mill, and ball mill for 3h at a speed of 400r / min, ...

Embodiment 3

[0054] A preparation method for corrosion-resistant environmental protection paint, comprising the steps of:

[0055] The first step is to weigh the following raw materials in parts by weight: 65 parts of modified silicone, 28 parts of environmental protection emulsion, 14 parts of nano filler, 2 parts of polyvinylpyrrolidone, 1.2 parts of magnesium stearate, 58 parts of absolute ethanol;

[0056] Step 2: Add modified silicone, environmentally friendly emulsion and magnesium stearate into absolute ethanol, heat in a water bath at 40°C, stir for 30 minutes, transfer to a dispersion tank and heat up to 60°C, at this temperature, use 500r / min Disperse at a rotating speed for 45 minutes to obtain a mixed solution;

[0057] The third step is to add nano fillers to the mixed solution prepared in the second step, disperse for 30 minutes at a speed of 160r / min, add polyvinylpyrrolidone, continue to disperse for 1h, transfer to a ball mill, and ball mill for 3h at a speed of 400r / min, ...

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Abstract

The invention relates to a preparation method of a corrosion-resistant environment-friendly coating. The preparation method comprises the following steps of: step 1, weighing the following raw materials in parts by weight: 55-75 parts of modified organic silicon, 25-30 parts of an environment-friendly emulsion, 8-15 parts of a nano filler, 1-3 parts of a thickening agent, 0.5-1.5 parts of a stabilizer and 55-60 parts of absolute ethyl alcohol; step 2, adding the modified organic silicon, the environment-friendly emulsion and the stabilizer into the absolute ethyl alcohol to obtain a mixed solution; and 3, adding the nano-filler into the mixed solution prepared in the step 2, and performing dispersing for 30 minutes at the rotating speed of 160-180 r / min to obtain the corrosion-resistant environment-friendly coating. A second intermediate ismixed with dissolved methyl phenyl silicone rubber under the action of tetraethoxysilane serving as a curing agent, and dibutyltin dilaurate servingas a catalyst, and the methyl phenyl silicone rubber is modified, and therefore, the technical problem of poor compatibility of a first intermediate and the methyl phenyl silicone rubber is solved; and moreover, the prepared coating has excellent corrosion resistance.

Description

technical field [0001] The invention belongs to the technical field of paint preparation, in particular to a preparation method of corrosion-resistant and environment-friendly paint. Background technique [0002] Architectural coatings are indispensable decorative and protective materials in the construction industry. They are used to coat buildings, decorate buildings or protect buildings. Floor coatings and roof coatings, but the exterior wall architectural coatings in the prior art generally have the following problems, high temperature resistance, poor corrosion resistance, after a long period of use, the exterior wall coatings are gradually corroded, seriously affecting the appearance of the exterior wall And the quality of external wall, therefore, urgently need a kind of new coating to solve above-mentioned technical problem. [0003] Chinese invention patent CN103319977A is a novel high-temperature-resistant and corrosion-resistant coating, which is characterized in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/10C09D175/08C09D5/08C09D7/61C09D7/63C08G18/66C08G18/48C08G18/32C08G77/44
CPCC08G18/3206C08G18/3281C08G18/4829C08G18/6674C08G18/6688C08G77/44C08K2003/2241C08K2201/011C08K2201/014C08L2205/03C08L2205/08C09D5/08C09D183/10C09D7/61C09D7/63C08L75/08C08L39/06C08K13/02C08K3/22C08K5/098C08K3/36
Inventor 谢婉雯
Owner 谢婉雯
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