Novel antibacterial and mildew-proof paint film and preparation method thereof

An antibacterial, antifungal, and paint film technology, which is applied to biocide-containing paints, antifouling/underwater coatings, coatings, etc., can solve problems such as environmental pollution and reduced antibacterial performance of paints, and achieve simple preparation methods and antibacterial effects Long lasting, less polluting effect

Active Publication Date: 2020-10-02
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this antibacterial product is that the antibacterial performance of the paint will continue to decrease with the release of the antibacterial agent, and the release of the antibacterial agent to the environment will also cause environmental pollution

Method used

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  • Novel antibacterial and mildew-proof paint film and preparation method thereof
  • Novel antibacterial and mildew-proof paint film and preparation method thereof
  • Novel antibacterial and mildew-proof paint film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Weigh 5g of polyethyleneimine with a molecular weight of 1800 and 15.8g of bromododecane and dissolve them in 19g of isopropanol, respectively, and mix and stir to form a homogeneous solution; the above two solutions are mixed and heated to 50 ° C and react for 48h; The ester is precipitated and dried to obtain a solid antibacterial agent quaternized polyethyleneimine.

[0031] Weigh 25.7g 601 resin, 23.1g xylene, 5.8g n-butanol, mix and stir, and add 40.4g other fillers (17.7g titanium dioxide, 8g barium sulfate, 3.2g kaolin, 11.2g after 601 resin is completely dissolved) Mica powder, 0.3g organoclay, ground for two hours; 5g of quaternized polyethyleneimine was weighed and dissolved in the xylene solution, added to the above mixture, continued to grind for 5min, and then added 5g of component B (3.1g of T31 curing agent) , 651 curing agent 1.9g), mixed evenly. Brush it on the surface of the metal substrate with a brush, and dry it to obtain an antibacterial and mildew...

Embodiment 2

[0035] Weigh 5g of polyethyleneimine with a molecular weight of 10000 and 15.8g of bromododecane and dissolve them in 19g of isopropanol, respectively, and mix and stir to form a homogeneous solution; mix and heat the above two solutions to 50 ° C, and react for 48h; use ethyl acetate The ester is precipitated and dried to obtain a solid antibacterial agent quaternized polyethyleneimine.

[0036] Weigh 25.7g 601 resin, 23.1g xylene, 5.8g n-butanol, mix and stir, and add 40.4g other fillers (17.7g titanium dioxide, 8g barium sulfate, 3.2g kaolin, 11.2g after 601 resin is completely dissolved) Mica powder, 0.3g organoclay), ground for two hours; 5g of quaternized polyethyleneimine was weighed and dissolved in the xylene solution, added to the above mixture, continued to grind for 5min, and then added 5g of component B (T31 curing agent 3.1 g, 651 curing agent 1.9g), mix well. Apply it on the surface of the metal substrate with a brush and let it dry to obtain an antibacterial a...

Embodiment 3

[0040] Weigh 5g of polyethyleneimine with a molecular weight of 25000 and 15.8g of bromododecane and dissolve them in 19g of isopropanol, respectively, and mix and stir to form a homogeneous solution; mix and heat the above two solutions to 50 ° C, and react for 48h; use ethyl acetate The ester is precipitated and dried to obtain a solid antibacterial agent quaternized polyethyleneimine.

[0041] Weigh 25.7g 601 resin, 23.1g xylene, 5.8g n-butanol, mix and stir, and add 40.4g other fillers (17.7g titanium dioxide, 8g barium sulfate, 3.2g kaolin, 11.2g after 601 resin is completely dissolved) Mica powder, 0.3g organoclay), ground for two hours; 5g of quaternized polyethyleneimine was weighed and dissolved in the xylene solution, added to the above mixture, continued to grind for 5min, and then added 5g of component B (T31 curing agent 3.1 g, 651 curing agent 1.9g), mix well. Apply it on the surface of the metal substrate with a brush and let it dry to obtain an antibacterial a...

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Abstract

The invention discloses a novel antibacterial and mildew-proof paint film. The paint film comprises, by mass, 50-90 parts of polyamino macromolecular quaternary ammonium salt, 1400-1550 parts of a component A and 50-90 parts of a component B, the component A comprises resin 601, dimethylbenzene, n-butyl alcohol and other fillers, the mass ratio of the dimethylbenzene to the n-butyl alcohol to theother fillers is 9: 2.25: 37, and the other fillers comprise titanium dioxide, barium sulfate, kaolin, mica powder and organic argil; and the component B is one or more of a T31 curing agent and a 651curing agent. A preparation method of the paint film is simple, convenient to operate, safe, environmentally friendly and suitable for industrial production, and the paint film has good antibacterialand mildew-resistant performance.

Description

technical field [0001] The invention belongs to the technical field of antibacterial coatings, and relates to a novel antibacterial and mildew-proof paint film and a preparation method thereof. Background technique [0002] Coatings play an important role in the field of building materials, which can not only protect the main material from erosion, but also play a decorative effect. With the continuous improvement of people's living standards, people's requirements for decorative coatings are also getting higher and higher. Antibacterial coatings refer to coatings with bactericidal and bacteriostatic functions made by adding antibacterial agents that have antibacterial functions and can stably exist in the coating film after a certain process. [0003] Existing antibacterial products on the market generally use an antibacterial agent as an antibacterial component added to the paint. By releasing the antibacterial agent to the paint surface, when the bacteria touch the board...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/10C09D179/02C09D5/14C09D7/62C09D7/61
CPCC09D163/10C09D5/14C09D7/62C09D7/61C08K2201/014C08K2003/3045C08K2003/2241C08L79/02C08K13/06C08K3/22C08K3/30C08K3/346C08K3/34
Inventor 徐福建段顺张红发
Owner BEIJING UNIV OF CHEM TECH
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