Damp-proof and mildew-proof coating and preparation method thereof

A paint and raw material technology, applied in the field of moisture-proof and mildew-proof paint and its preparation, can solve the problems of good mold resistance, poor heat and humidity resistance, no moisture resistance and mildew resistance, etc., and achieve good elasticity and good stain resistance Effect

Inactive Publication Date: 2012-07-04
HEBEI CHENYANG INDAL & TRADE GROUP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the comprehensive performance of moisture-proof and mildew-proof coatings at home and abroad, there is no technical index related to the elasticity of the coating film, and there is no two functions of moisture-proof and mildew-proof. Anti-algae and other properties, the performance of the coating film has not been comprehensively improved; therefore, the development of a moisture-proof and mildew-proof coating with good comprehensive performance, wide application range and long service life meets the needs of the development of the coatings industry

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The moisture-proof and mildew-proof coating provided by the present embodiment 1 is made of the following raw materials in proportions by weight, including:

[0019] 20% of water, 1.8% of propylene glycol, 0.2% of wetting agent, 0.5% of dispersant, 0.1% of multifunctional additive, 0.2% of defoamer, 0.1% of antiseptic and bactericide, 20% of rutile titanium dioxide, 2.2% of nano titanium dioxide, Indirect zinc oxide 3%, heavy calcium 5%, dry film antifungal agent PW40 0.4%, dry film antifungal agent S89 0.4%, pure acrylic emulsion 45%, hydrophobic modified alkali swelling thickener 0.8% and polyurethane type Thickener 0.3%.

[0020] Wherein, the pure acrylic emulsion is a soap-free core-shell emulsion, specifically, it may be a soap-free core-shell emulsion BLJ-938 emulsion.

[0021] The preparation method of the above-mentioned moisture-proof and mildew-proof coating specifically comprises the following steps:

[0022] 1) Add water, propylene glycol, wetting agent, d...

Embodiment 2

[0027] The moisture-proof and mildew-proof coating provided in this embodiment 2 is made of the following raw materials in proportions by weight, including:

[0028] 20% of water, 1.8% of propylene glycol, 0.2% of wetting agent, 0.5% of dispersant, 0.1% of multifunctional additive, 0.3% of defoamer, 0.2% of antiseptic and bactericide, 20% of rutile titanium dioxide, 3% of nano titanium dioxide, Indirect zinc oxide 3.2%, heavy calcium 6%, dry film antifungal agent PW40 0.3%, dry film antifungal agent S89 0.5%, pure acrylic emulsion 43%, hydrophobic modified alkali swelling thickener 0.6% and polyurethane type Thickener 0.3%.

[0029] Wherein, the pure acrylic emulsion is a soap-free core-shell emulsion, specifically, it may be a soap-free core-shell emulsion BLJ-938 emulsion.

[0030] Its preparation method is the same as that of Example 1, and will not be repeated here.

[0031] The coating film of the moisture-proof and mildew-proof coating provided by this embodiment has g...

Embodiment 3

[0033] The moisture-proof and mildew-proof coating provided by the present embodiment 3 is made of the following raw materials in proportions by weight, including:

[0034] 19% of water, 2% of propylene glycol, 0.2% of wetting agent, 0.4% of dispersant, 0.1% of multifunctional additive, 0.2% of defoamer, 0.1% of antiseptic and bactericide, 18% of rutile titanium dioxide, 1.5% of nano titanium dioxide, Indirect zinc oxide 4.5%, heavy calcium 7%, dry film antifungal agent PW40 0.4%, dry film antifungal agent S89 0.6%, pure acrylic emulsion 45%, hydrophobic modified alkali swelling thickener 0.7% and polyurethane type Thickener 0.3%.

[0035] Wherein, the pure acrylic emulsion is a soap-free core-shell emulsion, specifically, it may be a soap-free core-shell emulsion BLJ-938 emulsion.

[0036] Its preparation method is the same as that of Example 1, and will not be repeated here.

[0037] The coating film of the moisture-proof and mildew-proof coating provided by this embodimen...

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PUM

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Abstract

The invention discloses a damp-proof and mildew-proof coating and a preparation method thereof, and relates to the field of decorative protection of a building wall space. The damp-proof and mildew-proof coating comprises 15%-20% of water, 1.5%-2% of propylene glycol, 0.1%-0.2% of wetting agent, 0.4%-0.5% of dispersing agent, 0.1%-0.2% of multifunctional assistant, 0.2%-0.4% of defoaming agent, 0.1%-0.2% of antiseptic fungicide, 15%-20% of rutile titanium dioxide, 4%-8% of functional filling, 5%-8% of triple superphosphate, 0.8%-1% of dry film mildew preventive, 40%-45% of acrylic latex, 0.5%-1% of hydrophobic modified alkali swelling thickening agent and 0.3%-0.5% of polyurethane thickening agent. The content of VOC (Volatile Organic Compounds) of the damp-proof and mildew-proof coating, which is prepared by the invention, is 29 g/L, the elongation at break of a coating film is more than double, water resistance and alkali resistance are greater than 10 days, humidity resistance and mycotic resistance reach level-1, and the damp-proof and mildew-proof coating can be widely applied to damp wall spaces of inner and outer buildings.

Description

technical field [0001] The invention belongs to a moisture-proof and mildew-proof coating and a preparation method thereof, and relates to the field of decoration and protection of building walls, specifically including the protection of building walls in humid environments, the protection of walls in nutrient-rich environments, and the like. Background technique [0002] The research and development of moisture-proof and anti-mildew coatings began in the 1980s. The anti-mold latex paint developed in my country in 1989 has been successfully applied in pharmaceutical factories, breweries and other places, but it still cannot meet the high demand in special fields, especially the service life. About two years, and there is no actual theoretical basis for the attenuation of the anti-mildew effect. Due to the late start of research on high-performance coatings in China, most of the moisture-proof and anti-mildew coatings are added with small doses of anti-fungal agents to convent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D5/14C09D7/12
Inventor 董立志商培花东栓郭晓峰刘洪亮薛小倩王瑞宏
Owner HEBEI CHENYANG INDAL & TRADE GROUP CO LTD
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