Water-based floor alkali-resistant sealing primer

A technology for sealing primers and floors, which is applied in the field of floor paints to achieve the effects of fast drying, high water vapor transmission rate, and reduced foaming and cracking of paint films

Active Publication Date: 2013-01-30
江苏纽克莱涂料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the former is solidified into a film, the coating is relatively dense and has poor air permeability. It is prone to blistering and cracking due to water pressure on the thick coating on the concave surface of the floor, and its storage is poor. If it is not used up within the applicable period, it cannot be reused , resulting in waste; the latter has a low solid content and insufficient flexibility. After film formation, it often cracks due to the increase in the bonding stress of the internal emulsion particles to the substrate, and the continuous phase cannot be formed between the over-diluted emulsions, so the seepage is too fast, affecting Sealing effect, resulting in poor alkali resistance, water resistance and salt precipitation resistance

Method used

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  • Water-based floor alkali-resistant sealing primer
  • Water-based floor alkali-resistant sealing primer

Examples

Experimental program
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Embodiment 1～2

[0033] The preparation technology of water-based floor anti-alkali sealing primer in embodiment 1~2 is as follows:

[0034] Weigh each component as shown in Table 1, first put the silicone-acrylate copolymer emulsion, silica sol and deionized water into the mixer in turn, stir at 400-500 rpm for 10 min, and put them in the stirring state Ethylene glycol butyl ether (BCS) and dipropylene glycol butyl ether (DPnB), continue stirring for 10 min, then add mineral oil defoamer, silicone defoamer and polyether-siloxane copolymer Wet270, at 500-600 Stir at rpm for 10 min, finally add 1,2-benzisothiazolin-3-one, and stir at 500-600 rpm for another 10 min to obtain a finished water-based floor anti-alkali sealing primer.

[0035] The preparation process of the water-based floor anti-alkali sealing primer in Examples 3 to 4 is the same as above, except that the alcohol ester- 12.

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Abstract

The invention provides a water-based floor alkali-resistant sealing primer which is prepared by mixing the following components in percentage by weight: 70-80% of organosilicon-acrylate copolymer emulsion, 1-10% of silicasol, 10-18% of water, 0.1-0.3% of mineral oil defoaming agent, 0.1-0.3% of organosilicon defoaming agent, 1-2.4% of ethylene glycol monobutyl ether, 1-2.4% of dipropylene glycol monobutyl ether, 0.1-0.3% of wetting agent and 0.1-0.4% of preservative. The invention has the advantages of excellent alkali resistance, excellent water resistance, excellent water resistance, excellent salting-out resistance, excellent sealability, strong adhesive force, high hardness, favorable film-forming property, no cracking of thick coating, and no bubble.

Description

technical field [0001] The invention relates to the field of floor paint, in particular to a water-based anti-alkali sealing primer for the floor. Background technique [0002] Alkali-resistant sealing primer has the functions of sealing, blocking, strengthening, stabilizing, bonding and transition, and the painting of primer has become an indispensable process in the painting process. At present, most of the alkali-resistant sealing primers (such as epoxy floor primers) used for floors are organic solvent-based coatings, which have defects in water permeability, safety and environmental protection. This kind of coating forms a dense film. If the moisture content of the floor substrate is too high, water vapor cannot be emitted through the coating film, and the coating is prone to foaming. In addition, volatile organic compounds (VOC, including formaldehyde, ammonia, and ethyl alcohol) in organic solvent-based coatings Diols, esters, etc.) content is about 50%, which will ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D7/12
Inventor 刘斌解军宣飞燕蒋军
Owner 江苏纽克莱涂料有限公司
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