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A kind of styrene-acrylic emulsion sealing primer

A technology of styrene-acrylic emulsion and sealing primer, which is applied in the direction of coating, etc., can solve the problems of weak substrate permeability, poor sealing performance, and low film-forming density, and achieve strong adhesion, smooth brushing, and reduced dosage Effect

Inactive Publication Date: 2011-12-28
SUZHOU MEIYAMEI CONSTR COATINGS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the low film-forming density and weak permeability to the substrate of this kind of copolymer emulsion, the sealing performance is poor, and the anti-alkali and anti-salting-out effect is poor.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] A styrene-acrylic emulsion sealing primer is uniformly prepared by high-speed dispersion and stirring with a mixer according to the following raw materials: 20-25 parts of water, 1.5-2 parts of hydroxyethyl cellulose, 0.08-0.1 parts of preservatives, 0.08-0.1 parts 1 part of antifungal agent, 0.8 part of ethylene glycol, 0.08-0.1 part of defoamer, 0.1-0.2 part of organic amine, 1-1.5 part of film-forming aid, 5 parts of titanium dioxide, 5 parts of kaolin, 35-38 parts of styrene-acrylic Emulsion, 0.2-0.3 part of thickener. The main technical performance of the product prepared by the present invention is as follows table 1

[0012] Table 1, main technical performance of the present invention

[0013] Alkali resistance

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Abstract

The invention discloses a styrene-acrylic emulsion sealing primer composed of styrene-acrylic emulsion and high-quality additives, which is used for sealing the inner and outer wall substrates, can effectively resist the precipitation of alkali salts in the base layer, and can also effectively seal For powdered old walls, improve the adhesion between the base layer and the top coat.

Description

technical field [0001] The invention relates to a styrene-acrylic emulsion sealing primer, in particular to a styrene-acrylic emulsion sealing primer suitable for renovating old walls and sand-like paints for interior and exterior walls. technical background [0002] The sealing primer is usually called the primer, which is the first paint applied before the interior and exterior walls are painted. Its main function is to close the base of the wall and block the capillary pores in the base, so as to effectively isolate the alkali of the substrate and prevent the seepage of alkali from damaging the coating. There are two types of styrene-acrylic emulsion sealing primers: solvent-based and water-based, and water-based primers can be divided into water-based and water-soluble. At present, most of the primers used in the building decoration industry are emulsion primers. Chinese invention patent application 03101178 discloses the technology of "a water-based anti-alkali styren...

Claims

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Application Information

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IPC IPC(8): C09D125/14C09D7/12
Inventor 曹其荣
Owner SUZHOU MEIYAMEI CONSTR COATINGS
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