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Antifouling mildew-proof diatom ooze coating and preparation method thereof

A diatom mud coating and anti-mildew technology, used in fire-resistant coatings, anti-fouling/underwater coatings, coatings, etc., can solve problems such as insufficient effect, achieve good antibacterial effect, improve photocatalytic efficiency, and uniform size. Effect

Inactive Publication Date: 2019-02-19
陈换换
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, none of the coatings sold on the market can completely solve these problems. At present, coatings are more concerned about their surface properties, such as: coatings with wet appearance, sound absorption, odor, spreading rate, water and alkali resistance, and scrub resistance. Elimination of organic compounds (VOC), formaldehyde and other harmful substances in the living environment, air purification, breathing adjustment and noise reduction, heat insulation, fire and flame retardancy, and increase the stain resistance and antibacterial ability of wall coatings are not good enough or have no effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0062] The preparation method of the antifouling and antimildew diatom mud coating comprises the following steps:

[0063] Step S1, drop an appropriate amount of ammonia water into the emulsion, adjust the pH of the emulsion to 7-8 (weakly alkaline), then place the emulsion in a water bath, stir at a constant temperature of 35°C for 30min, add modified nano-zinc oxide, and heat up to 45°C Stir at ℃ for 2 hours to make the reaction complete and the ammonia water volatilized fully, and finally cool the solution to room temperature, seal it for later use, and obtain an emulsion containing modified nano-ZnO for later use;

[0064] Step S2, at a stirring speed of 250r / min, add the dispersant, defoamer, and half of the leveling thickener to deionized water in sequence, and stir for 13-15min;

[0065] Step S3, add ethylene glycol and sodium hydroxide in turn, slowly increase the stirring speed to 800r / min, continue stirring for 6-8min, add nano sepiolite powder, slowly increase the s...

Embodiment 1

[0070] A stain-resistant and mildew-resistant diatom mud coating, made of the following main raw materials in parts by weight: 42 parts of deionized water, 22 parts of diatomaceous earth, 16 parts of emulsion, 0.5 parts of ammonia water, 8 parts of filler, and 8 parts of nano sepiolite powder 1.5 parts of ethylene glycol, 0.7 parts of sodium hydroxide, 3 parts of composite materials, 2 parts of modified nano zinc oxide, 0.5 parts of composite antifungal agent, 0.3 parts of anionic polycarboxylate ammonium salt, 0.2 parts of defoamer, hydrophobic 0.2 parts of group-modified non-ionic associative additives;

[0071] The emulsion is a silicone-modified styrene-acrylic emulsion, pure acrylic emulsion, styrene-acrylic emulsion, or vinegar-acrylic emulsion of a core-shell structure;

[0072] The defoamer is a compound of two or three of special non-ion, mineral oil and silicone;

[0073] The filler includes titanium dioxide, kaolin, calcium carbonate, talcum powder, titanium dioxid...

Embodiment 2

[0075] A stain-resistant and mildew-resistant diatom mud coating, made of the following main raw materials in parts by weight: 46 parts of deionized water, 24 parts of diatomaceous earth, 18 parts of emulsion, 0.7 parts of ammonia water, 9 parts of filler, and 9 parts of nano sepiolite powder 1.6 parts of ethylene glycol, 0.75 parts of sodium hydroxide, 4 parts of composite materials, 2.5 parts of modified nano zinc oxide, 0.8 parts of composite antifungal agent, 0.4 parts of anionic polycarboxylate ammonium salt, 0.3 parts of defoaming agent, hydrophobic 0.3 parts of group-modified non-ionic associative additives;

[0076] The emulsion is a silicone-modified styrene-acrylic emulsion, pure acrylic emulsion, styrene-acrylic emulsion, or vinegar-acrylic emulsion of a core-shell structure;

[0077] The defoamer is a compound of two or three of special non-ion, mineral oil and silicone;

[0078] The filler includes titanium dioxide, kaolin, calcium carbonate, talcum powder, titan...

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PUM

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Abstract

The invention discloses antifouling mildew-proof diatom ooze coating and a preparation method thereof. The antifouling mildew-proof diatom ooze coating is mainly prepared from, by weight, 42-50 partsof deionized water, 22-26 parts of diatomite, 16-20 parts of emulsion, 0.5-1 part of ammonium hydroxide, 8-10 parts of filler, 8-10 parts of nano sepiolite powder, 1.5-1.7 parts of ethylene glycol, 0.7-0.8 part of sodium hydroxide, 3-5 parts of a composite material, 2-3 parts of modified nano zinc oxide, 0.5-1 part of a composite mildew-proof agent, 0.3-0.5 part of a dispersing agent, 0.2-0.4 partof an antifoaming agent and 0.2-0.4 part of a leveling thickening agent. By deionized water serving as a solvent, emulsion serving as a film forming matter of the coating, diatomite and nano sepiolite powder serving as functional filler in a scientific ratio and the composite material, functions of purification of harmful substances such as VOC (volatile organic compounds), formaldehyde, moistureand the like, breathable humidity regulation, noise reduction, thermal preservation, heat insulation, fire prevention, flame retardation and the like of coatings are guaranteed.

Description

technical field [0001] The invention belongs to the technical field of diatom mud coatings, and in particular relates to a stain-resistant and mildew-proof diatom mud coating and a preparation method thereof. Background technique [0002] In people's home life, problems such as wall stains, cracks, dampness, water leakage, and mold growth have long plagued our living and living, especially in the indoor environment. The concentration of harmful substances such as formaldehyde and organic compounds (VOC) frequently exceeds the standard. The mold caused by excessive air humidity reproduces rapidly, resulting in moldy and deteriorated items, causing the elderly and children with low immunity to contract diseases, which is closely related to people's health. And these problems can be solved by brushing paint. However, none of the coatings sold on the market can completely solve these problems. At present, coatings are more concerned about their surface properties, such as: coat...

Claims

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Application Information

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IPC IPC(8): C09D125/14C09D133/04C09D131/04C09D5/16C09D5/14C09D5/18C09D7/61C09D7/20C09D7/62
CPCC08K2003/2241C08K2003/2296C08K2003/328C08K2201/011C09D5/14C09D5/1662C09D5/1687C09D5/18C09D7/20C09D125/14C09D131/04C09D133/04C08K7/26C08K9/06C08K3/22C08K9/12C08K3/32C08K3/34
Inventor 刘丰高
Owner 陈换换
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