Nano metal silver antibiotic paint and its preparing method

A nano-metallic silver and antibacterial coating technology, which is applied in polyester coatings, epoxy resin coatings, antifouling/underwater coatings, etc., can solve problems such as poor durability, poor safety of antibacterial coatings, and limited application range, and achieve safety sex high effect

Inactive Publication Date: 2005-05-18

RESEARCH INSTITUTE OF TSINGHUA UNIVERSITY IN SHENZHEN

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AI-Extracted Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to solve the problems of existing antibacterial coatings such as poor safety, poor durabilit...

Abstract

The present invention provides a kind of nanometer antibiotic metal silver paint and its preparation process. The present invention features that by means of solving the technological problem of nanometer metal silver antibiotic in dispersing, oxidizing, changing color, etc., the prepared nanometer antibiotic metal silver paint has high safety, high and lasting antibiotic effect, and may be used widely in building, furniture, ship, household appliance and other fields.

Application Domain

Antifouling/underwater paintsPaints with biocides +3

Technology Topic

Antibiotic effectMetal +2

Examples

Experimental program(4)

Example Embodiment

[0040] Example one:

[0041] The preparation formula of this embodiment is:

[0042] Tap water: 120 kg; Dispersant: 8 kg;

[0043] Antifoaming agent: 4 kg; Wetting and dispersing agent: 0.2 kg;

[0044] Thickener: 15 kg; Leveling agent: 10 kg;

[0045] Film forming aid: 15 kg; Styrene-acrylic resin: 150 kg;

[0046] Titanium dioxide: 60 kg; Nano-metal silver dispersion: 100 kg;

[0047] Superfine aluminum silicate: 20 kg; Lithopone: 120 kg;

[0048] Talc: 80 kg; light calcium carbonate: 100 kg.

[0049] Heavy calcium carbonate: 100 kg;

[0050] The preparation method is:

[0051] (1) Mix the nano-metal silver dispersion liquid and tap water uniformly.

[0052] (2) Combine film-forming additives, leveling agents, dispersants, wetting and dispersing agents, defoamers, titanium dioxide, ultrafine aluminum silicate, talc, lithopone, heavy calcium carbonate, and light calcium carbonate After weighing separately, add to the mixing tank containing the above mixed liquid, stir evenly, control the speed at 1100r/min, and stir for 30min to obtain the slurry;

[0053] (3) Grind the above slurry with a sand mill or a three-roll mill to a fineness of ≤40μ.

[0054] (4) Add styrene-acrylic resin to the above slurry, add thickener until the Stomo viscosity is 100K, and the product can be obtained.

Example Embodiment

[0055] Embodiment two:

[0056] The preparation formula of this embodiment is:

[0057] Tap water: 240 kg; Dispersant: 6 kg;

[0058] Defoamer: 5 kg; Thickener: 5 kg;

[0059] Leveling agent: 3 kg; Film forming aid: 5 kg;

[0060] Wetting and dispersing agent: 0.3 kg; Silicone acrylic resin: 300 kg;

[0061] Superfine aluminum silicate: 10 kg; Titanium dioxide: 300 kg;

[0062] Talc: 60 kg; Light calcium carbonate: 80 kg;

[0063] Nano metal silver powder: 0.01 kg;

[0064] The preparation method is:

[0065] (1) Mix 0.01 kg of nano-metal silver powder, 1 kg of dispersant and 240 kg of water and stir evenly.

[0066] (2) Weigh the above-mentioned mixed liquid, wetting and dispersing agent, film forming aid, leveling agent, dispersant, defoamer, talc, titanium dioxide, ultrafine aluminum silicate, and light calcium carbonate, respectively, and add them Stir the tank, stir evenly, control the speed at 1200r/min, stir for 20min, and get the slurry;

[0067] (3) Grind the above slurry with a sand mill or a three-roll mill to a fineness ≤50μ.

[0068] (4) Add silicone acrylic resin to the above slurry, add thickener to the Stomo viscosity to 100K, and the product can be obtained.

Example Embodiment

[0069] Embodiment three:

[0070] The preparation formula of this embodiment is:

[0071] Acetone: 300 kg; Dispersant: 10 kg;

[0072] Defoamer: 5 kg; Thickener: 15 kg;

[0073] Leveling agent: 6 kg; Film forming aid: 12 kg;

[0074] Wetting and dispersing agent 0.1 kg; Polyurethane: 300 kg;

[0075] Superfine aluminum silicate: 10 kg; Titanium dioxide: 200 kg;

[0076] Talc: 50 kg; Light calcium carbonate: 70 kg;

[0077] Nano metal silver powder: 0.05 kg;

[0078] The preparation method is:

[0079] (1) Disperse and stir 0.05 kg of nano-metal silver powder, 2 kg of dispersant, and 300 kg of acetone.

[0080] (2) Weigh the above-mentioned mixed liquid, film-forming aids, leveling agent, dispersant, wetting and dispersing agent, defoamer, titanium dioxide, ultrafine aluminum silicate, talcum powder, and light calcium carbonate separately and add them Stir the tank, stir evenly, control the speed at 2000r/min, and stir for 30min to obtain slurry;

[0081] (3) Grind the above slurry with a sand mill or a three-roll mill to a fineness ≤50μ.

[0082] (4) Add polyurethane to the above slurry, add thickener to the Stomo viscosity of 99K, and the product can be obtained.

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Nano metal silver antibiotic paint and its preparing method

AI-Extracted Technical Summary

Problems solved by technology

Abstract

Examples

Example Embodiment

Example Embodiment

Example Embodiment

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Description & Claims & Application Information

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