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Preparation method of waterborne mold-proof finishing paint

A mildew-proof and topcoat technology, which is applied to biocide-containing paints, anti-fouling/underwater coatings, unspecified rubber coatings, etc., can solve problems such as poor anti-mildew performance, paint pollution, and complicated processes. Achieve the effects of low cost, improved flexibility and simple process

Inactive Publication Date: 2015-01-21
徐妍玲
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditionally, the coatings are made of organic solvents, which are highly polluting. Therefore, water-based coatings have been used on a large scale. For exterior wall coatings, one of the important technical problems that needs to be solved is mildew resistance, but now Some water-based paints have poor anti-mold performance, and the process of preparation is complicated

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) Weigh 250g of a mixture of protective anti-mold capsule spores and rubber powder with a weight ratio of 3:1, 226g of deionized water, 100g of fillers and 60g of additives at a temperature of 70-80°C at a speed of 400-800r / min Stir well.

[0026] (2) Weigh 350g of water-based polyurethane emulsion and add it to step (1), and react for 20-40min while stirring in a water bath at 80-100°C.

[0027] (3) Weigh 4g of defoamer, 3g of preservative, and 7g of thickener and add them to step (2), and stir for 5 to 10 minutes at a speed of 400 to 800r / min; filter to obtain a water-based anti-mildew topcoat .

Embodiment 2

[0029] (1) Weigh 238g of a mixture of protective anti-mold capsule spores and rubber powder with a weight ratio of 3:1, 250g of deionized water, 120g of fillers and 70g of additives at a temperature of 70-80°C at a speed of 400-800r / min Stir well.

[0030] (2) Weigh 300g of water-based polyurethane emulsion and add it to step (1), and react for 20-40min while stirring in a water bath at 80-100°C.

[0031] (3) Weigh 5g of defoamer, 8g of preservative, and 9g of thickener and add them to step (2), and stir for 5 to 10 minutes at a speed of 400 to 800r / min; filter to obtain a water-based anti-mold topcoat .

Embodiment 3

[0033] (1) Weigh 220g of a mixture of protective anti-mold capsule spores and rubber powder with a weight ratio of 3:1, 242g of deionized water, 80g of fillers and 50g of additives at a temperature of 70-80°C at a speed of 400-800r / min Stir well.

[0034] (2) Weigh 400g of water-based polyurethane emulsion and add it to step (1), and react for 20-40min while stirring in a water bath at 80-100°C.

[0035] (3) Weigh 2g of defoamer, 1g of preservative, and 5g of thickener and add them to step (2), and stir for 5 to 10 minutes at a speed of 400 to 800r / min; filter to obtain a water-based anti-mildew finish .

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Abstract

The invention discloses a preparation method of a waterborne mold-proof finishing paint. The method comprises the following steps: (1) weighing 22%-28% of a mixture composed of protective mold-proof capsule spore and rubber powder at the weight ratio of 3: 1, 20%-25% of de-ionized water, 8%-12% of a filler and 5%-7% of an additive, and stirring uniformly at 70-80 DEG C at a revolution speed of 400-800 r / min; (2) weighing and adding 30%-40% of a waterborne polyurethane emulsion to the step (1); (3) weighing and adding 0.2%-0.5% of a de-foaming agent, 0.1%-0.5% of a preservative and 0.5%-0.9% of a thickener to the step (2), stirring for 5-10 min at the revolution speed of 400-800 r / min, and filtering to obtain the waterborne mold-proof finishing paint. According to the reparation method of a waterborne mold-proof finishing paint, the obtained finishing paint is good in mold resistance and elasticity, and the process is simple.

Description

technical field [0001] The invention relates to a preparation method of a water-based anti-mildew finish paint. Background technique [0002] In various fields, coatings are widely used, such as exterior walls, industrial warehouses, chemical, petroleum, food industry storage tanks and pipeline surfaces, factories, modern farms, freezers, private houses, office buildings and other buildings, etc. . [0003] Traditionally, the coatings are made of organic solvents, which are highly polluting. Therefore, water-based coatings have been used on a large scale. For exterior wall coatings, one of the important technical problems that needs to be solved is mildew resistance, but now Some water-based paints have poor anti-mildew performance, and the process is complicated in the preparation process. Contents of the invention [0004] The purpose of the present invention is to provide a method for preparing a water-based anti-mold finish paint with good anti-mold performance, good...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D121/00C09D5/14C09D7/12
CPCC09D175/04C09D5/14C09D7/40
Inventor 徐妍玲
Owner 徐妍玲