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Multifunctional water-based white primer and preparation method thereof

A white primer, multi-functional technology, applied in the direction of coating, can solve the problems of blank, unable to apply copper sheet, etc., achieve the effect of low film forming temperature, balance hardness and flexibility, and ensure sealing

Active Publication Date: 2013-07-03
CHINA PAINT MFG CO SHENZHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the tightening of environmental protection regulations, oil-based coatings are facing more and more severe challenges in the industrial field (especially wood and plastic fields), and some oil-based coatings have found it difficult to meet the requirements of international regulations on the limit of harmful substances in export coating products Therefore, in recent years, many downstream customers have actively requested the use of environmentally friendly water-based paints instead of oil-based paints, resulting in unprecedented development of water-based paints, especially water-based wood coatings. , children's beds, photo frames and wooden toys, etc.) are widely used, and now in the plastic field (such as mannequins, etc.), some customers also require water-based white primers, which also require fast drying and good adhesion while ensuring good sanding However, most of the white primers currently used in the field of water-based woodware cannot be applied to the plastic field due to adhesion problems, let alone copper sheets. Only corresponding white primers can be developed for different substrates. So far, they can be applied to There are almost no patent reports on multi-functional water-based white primers for various substrates

Method used

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  • Multifunctional water-based white primer and preparation method thereof
  • Multifunctional water-based white primer and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0037] According to the percentage by weight, the multifunctional water-based white primer mainly includes the following components: deionized water: 8.4%; mineral oil defoamer: 0.2%; wetting agent: 0.4%; dispersant: 0.8%; rutile titanium White powder: 12%; Talc powder: 10%; Light calcium carbonate: 13%; Acrylic emulsion A: 40%; Acrylic emulsion B: 9%; Dipropylene glycol monobutyl ether: 2.5%; Dipropylene glycol methyl ether: 3.1%; Thickener: 0.3%; Bactericide: 0.1%; AMP-95: 0.2%. The manufacturing steps are described as follows:

[0038] Step a: Weigh the raw materials according to the weight ratio of the above composition, add 4 / 5 of 8.4% deionized water, 0.4% of wetting agent, 0.8% of dispersant and 3 / 4 of 0.2% of defoamer, and stir at a low speed Mix well for 8-10 minutes;

[0039] Step b: Add 12% of rutile titanium dioxide, 10% of 1250 mesh talc powder and 13% of light calcium carbonate to the mixture obtained in step a according to the weight ratio of the above composit...

Embodiment 2

[0044] The difference between embodiment 2 and embodiment 1 is that the weight ratio of each component changes. This kind of multifunctional water-based white primer mainly includes the following components according to weight percentage: deionized water: 7%; mineral oil defoaming Agent: 0.3%; Wetting agent: 0.8%; Dispersant: 0.5%; Rutile titanium dioxide: 13%; Talc powder: 8%; Light calcium carbonate: 12%; Acrylic emulsion A: 35%; Acrylic emulsion B Dipropylene glycol monobutyl ether: 2.5%; Dipropylene glycol methyl ether: 4%; Thickener: 0.3%; Bactericide: 0.1%; AMP-95: 0.1%. The manufacturing steps are described as follows:

[0045] Step a: Weigh the raw materials according to the weight ratio of the above composition, add 4 / 5 of 7% deionized water, 0.8% of wetting agent, 0.5% of dispersant and 3 / 4 of 0.3% defoamer, and stir at a low speed for 8 ~ 10 minutes to fully mix;

[0046] Step b: Add 13% rutile titanium dioxide, 8% talcum powder and 12% light calcium carbonate to t...

Embodiment 3

[0051] Embodiment 3 differs from Embodiment 1 and Embodiment 2 in that the weight ratio of each component is changed. According to the weight percentage, the multifunctional water-based white primer mainly includes the following components: deionized water: 10%; mineral oil defoamer: 0.1%; wetting agent: 0.3%; dispersant: 1.0%; rutile titanium White powder: 10%; Talc powder: 12%; Light calcium carbonate: 15%; Acrylic emulsion A: 45%; Acrylic emulsion B: 5%; Dipropylene glycol monobutyl ether: 4%; Dipropylene glycol methyl ether: 3%; Thickener: 0.5%; Bactericide: 0.05%; AMP-95: 0.15%. The manufacturing steps are described as follows:

[0052] Step a: Weigh the raw materials according to the weight ratio of the above composition, add 4 / 5 of 10% deionized water, 0.3% of wetting agent, 1.0% of dispersant and 3 / 4 of 0.1% defoamer, and stir at low speed for 8 ~ 10 minutes to fully mix;

[0053] Step b: Add 10% rutile titanium dioxide, 12% talcum powder and 15% light calcium carbon...

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Abstract

The invention discloses multifunctional water-based white primer, which comprises the following components: titanium dioxide, talcum powder and calcium carbonate, and is characterized by comprising acrylic emulsion A and acrylic emulsion B, wherein acrylic emulsion A is styrene-acrylate emulsion which is self-crosslinked at the room temperature, and acrylic emulsion B is modified acrylic emulsion. The multifunctional water-based white primer provided by the invention can be constructed on a variety of wood product substrates, but also can be constructed on a variety of plastic substrates, at the same time, can be applied on the copper sheets, breaks through the situation of the simplification of the water-based white primer, and the performances meet the various requirements water-based wood white bottom and water-based plastic white bottom.

Description

technical field [0001] The invention relates to a multifunctional water-based white primer and a preparation method thereof. Background technique [0002] With the tightening of environmental protection regulations, oil-based coatings are facing more and more severe challenges in the industrial field (especially wood and plastic fields), and some oil-based coatings have found it difficult to meet the requirements of international regulations on the limit of harmful substances in export coating products Therefore, in recent years, many downstream customers have actively requested the use of environmentally friendly water-based paints instead of oil-based paints, resulting in unprecedented development of water-based paints, especially water-based wood coatings. , children's beds, photo frames and wooden toys, etc.) are widely used, and now in the plastic field (such as mannequins, etc.), some customers also require water-based white primers, which also require fast drying and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D125/14C09D133/00C09D7/12
Inventor 赖贺喜王丽
Owner CHINA PAINT MFG CO SHENZHEN