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White antialkali sealing priming paint and its preparation method

A sealing primer, white technology, applied in the direction of coating, etc., can solve the problems of no appearance improvement on the wall surface, poor alkali resistance, etc., to improve the background of wall decoration, improve brushing performance, reduce dosage and quality Requirements and effects of painting and grading difficulty

Inactive Publication Date: 2012-01-11
SHENYANG SHUNFENG NEW MATERIAL CO LTD
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  • Claims
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AI Technical Summary

Problems solved by technology

The patent with publication number 03101178.0 provides a water-based alkali-resistant sealing primer, which solves the defect of poor alkali resistance of traditional sealing primers, but it does not use titanium dioxide, heavy calcium and other substances, and the paint film is transparent. Body surface does not have any appearance improvement effect

Method used

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  • White antialkali sealing priming paint and its preparation method

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Embodiment

[0019] Table 1 Raw materials and ratio

[0020]

[0021] The implementation process is:

[0022] (1) Use a paint mixing tank and a disperser, and add items 1-6 according to the amount at a speed of about 200 rpm. After adding items 1-6, increase the speed to 400-500 rpm and keep it for about 20 minutes until the additives are evenly dispersed.

[0023] (2) While stirring at 400 rpm, slowly add items 7-9 according to the amount. After items 7-9 are added, increase the speed to 1000-1200 rpm and keep for 20-30 minutes until the fineness is less than 45 microns.

[0024] (3) Continue to add items 10-12 at 200-300 rpm, and then adjust the pH value to 9 with ammonia water. Then dilute the SN-636 thickener 3 times with water, and then add it slowly to adjust the viscosity to 85-90KU. Supplement the remaining water to add up to 1000kg.

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Abstract

A white antialkali sealing priming paint and its preparation method relate to a building priming paint and its preparation method. The white aqueous antialkali sealing priming paint has the following components of: 20-30% of water; 50-60% of an emulsion; 4-6% of titanium dioxide; 4-6% of heavy calcium carbonate; 2-4% of kaolin; 1-3% of a film-forming additive; 1-5% of propylene glycol; 0.5-1% of a thickening agent; 0.1-0.5% of ammoniacal liquor; 0.1-0.5% of a dispersant; 0.1-0.5% of an antifoaming agent; 0.05-0.1% of an antiseptic; and 0.05-0.1% of a wetting agent. The white antialkali sealing priming paint is prepared by the dispersion mixing of the above components. The white aqueous antialkali sealing priming paint provided by the invention has good permeability, alkali resistance, bond strength and sealing performance with no pollution, and the coating has a certain covering power and can provide a covering effect, so as to improve the decorative background for the surface coating, make the color of the surface coating uniform and save the top coat consumption.

Description

technical field [0001] The invention relates to a building primer and a preparation method thereof, in particular to a white alkali-resistant sealing primer capable of providing hiding power and a preparation method thereof. Background technique [0002] The construction base of architectural coatings is usually mortar concrete, in which lime and cement are highly alkaline. With the volatilization of water, the alkaline substances and soluble salts in the cement will pass through the capillary pores of the cement in the form of aqueous solution. The coating seeps out, calcium hydroxide is brought to the surface and gradually reacts with carbon dioxide in the air to form insoluble neutral carbonate. This white insoluble substance is difficult to remove, and it is easy to cause problems such as discoloration, blooming, fading, and peeling of the coating. Seriously affect the decoration and color retention of the coating film. And because exterior wall coatings require high w...

Claims

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Application Information

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IPC IPC(8): C09D125/14C09D133/04C09D7/12
Inventor 吕会勇沙世强于海舒王杨松葛晶于浩
Owner SHENYANG SHUNFENG NEW MATERIAL CO LTD
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