Preparation method of highly-dispersed anti-mold and anti-bacterial coating film

A mildew and antibacterial, high dispersibility technology, applied in antifouling/underwater coatings, coatings, paints containing biocides, etc., can solve the problems affecting the use performance, and achieve uniformity, excellent antibacterial and antifungal properties. Effect

Inactive Publication Date: 2017-09-08
CHANGDE JINDE NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The film-forming substances of paints are composed of a variety of natural or synthetic polymer compounds, most of which contain the nutrients needed for biological growth. If the water-based paint lacks protection against biological resistance, it will cause mold and bacteria after film formation. A large amount of algae growth affects its performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment example 1

[0029] a1. 50 parts by mass of 1,2-benzisothiazolin-3-one (BIT), 20 parts by mass of formaldehyde condensate of dibutylnaphthalenesulfonate, 2 parts of magnesium aluminum silicate Add it into the material barrel of the sand mill, start the sand mill to grind, and the grinding time is 2 hours to obtain the antifungal agent suspension;

[0030] a2. Mix tetraethyl orthosilicate, water, monoalcohol, organic or hydrochloric acid uniformly in a certain proportion, and react at a temperature of 20°C for 20 hours to obtain a dispersion of silica nano colloidal particles; then add vinyl triethoxy Siloxane was reacted for another 20 hours, and after separation and purification treatment, a dispersion of silica nano colloidal particles was obtained, and the diameter of the obtained silica colloidal particles was 80nm;

[0031] a3, then add methyl acrylate and N, N methylenebisacrylamide in silica nano colloid particle dispersion liquid, wherein the mol ratio of methyl acrylate and N, N m...

Embodiment example 2

[0034] b1. Add 100 parts by mass of 2-(4-thiazolyl)benzimidazole (TBZ), 50 parts by mass of dodecyl polyvinyl ether phosphate, and 5 parts of xanthan gum into the sand mill In the material bucket, start the sand mill to grind, and the grinding time is 8h to obtain the antifungal agent suspension;

[0035] b2. Mix tetraethyl orthosilicate, water, polyether polyol, and sulfuric acid uniformly in a certain proportion, and react at a temperature of 60°C for 60 hours to obtain a dispersion of silica nano colloidal particles; then add 3-(trimethoxy Silyl) propyl acrylate, and then reacted for 60h to obtain a silica nano colloidal particle dispersion after separation and purification treatment, and the obtained silica colloidal particle diameter is 100nm;

[0036]b3, then add dimethylaminoethyl acrylate and butadiene to the dispersion of silica nano colloidal particles, wherein the molar ratio of dimethylaminoethyl acrylate and butadiene is 1:20, under argon protection , adding an a...

Embodiment example 3

[0039] c1. Add 70 parts by mass of dithio-2,2'-bisbenzamide, 30 parts by mass of lignosulfonate, and 3 parts of hydroxymethylcellulose into the barrel of the sand mill , start the sand mill to grind, and the grinding time is 6h to obtain the antifungal agent suspension;

[0040] c2. Mix tetraethyl orthosilicate, water, polyols, and sulfamic acid uniformly in a certain proportion, and react at a temperature of 50°C for 30 hours to obtain a dispersion of silica nano colloidal particles; then add a surface modifier, and then After reacting for 30 hours, the silica nano colloidal particle dispersion was obtained after separation and purification treatment, and the obtained silica colloidal particles had a diameter of 90nm;

[0041] c3, then add hydroxyethyl acrylate and isoprene to the silica nano colloid particle dispersion liquid, wherein the molar ratio of hydroxyethyl acrylate and isoprene is 1:5, under the protection of argon, add accounted for An oil-soluble oxidation-reduc...

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Abstract

The invention discloses a preparation method of a highly-dispersed anti-mold and anti-bacterial coating film. The preparation method comprises the following steps of adding, by weight part, 50-100 parts of anti-mold agent, 20-50 parts of dispersing agent and 2-5 parts of thickener into the bucket of a sand grinder, and starting the sand grinder for grinding for 2-8 h; adding an anti-mold agent suspension with a weight percentage of 1-5% into water-based paint, wherein the water-based paint is composed of propyl alcohol emulsion and surface-modified nano SiO2 dispersing liquid; performing thorough and uniform stirring, coating the mixture onto base materials, baking the coated base materials in a drying oven at 120-150 DEG C for 20-30 min, controlling the film thickness to be 10-28 micrometers. The highly-dispersed anti-mold and anti-bacterial coating film can effectively ensure component uniformity of paint, give full play of effects of the paint, facilitate paint application and meanwhile obtain excellent anti-mold and anti-bacterial performance.

Description

technical field [0001] The invention relates to the technical field of coating film preparation, in particular to a preparation method of a highly dispersed anti-mold and antibacterial coating film. Background technique [0002] With the continuous improvement of environmental protection awareness and the continuous improvement of environmental protection laws and regulations, the foreign coating industry has further tightened the control on the content of volatile organic compounds and harmful substances, and the trend of water-based and powdered coatings has become more and more obvious. The film-forming substances of paints are composed of a variety of natural or synthetic polymer compounds, most of which contain the nutrients needed for biological growth. If the water-based paint lacks protection against biological resistance, it will cause mold and bacteria after film formation. A large number of algae grow and affect its performance. Therefore, it is necessary to ad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D151/10C09D5/14C09D7/12C08F292/00C08F220/14C08F222/38C08F220/34C08F236/06C08F220/28C08F236/08
CPCC09D133/04C08F292/00C09D5/14C08L2205/035C08L51/10C08L71/02C08L5/00C08L1/284C08K13/02C08K5/47C08K5/42C08K3/34C08F220/281C08F220/34
Inventor 余赞田璐钟文罗臻
Owner CHANGDE JINDE NEW MATERIAL TECH CO LTD
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