Preparation method of antibacterial composite coating

A composite coating and composite slurry technology, used in anti-corrosion coatings, anti-fouling/underwater coatings, polyurea/polyurethane coatings, etc., can solve the problem that coatings do not have antibacterial and bactericidal functions, and achieve improved anti-corrosion performance and broad application prospects. , the effect of reducing water absorption

Inactive Publication Date: 2020-05-19
文书记
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in modern life, bacteria exist in various environments, especially with the aggravation of pollution in modern society, various bacteria and germs are easy to breed and multiply, especially for decorative materials that the human body often contacts, and UV coatings have no antibacterial properties. And bactericidal function, there will be a certain number of bacteria on the surface during use. In order to prevent these bacteria and germs from infecting the human body, people have put forward higher requirements for coatings, so that the coatings have antibacterial and bactericidal properties. Through the coating itself Antibacterial properties kill bacteria and germs attached to the paint by itself

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A preparation method for an antibacterial composite coating, comprising the following steps:

[0020] (1) Preparation of shell powder: After cleaning the shells, soak them in 8% sodium hydroxide solution for 1 hour, take them out and wash with alkali to remove organic and inorganic impurities on the surface of the shells, wash them with distilled water, and put them into a blast drying box The drying temperature is 90°C, the drying time is 20h, and then the dried shells are crushed in a pulverizer. After crushing, they are ball-milled with a star ball mill for 24 hours, passed through a 100-mesh screen, calcined at a high temperature of 1000°C for 2 hours, and ground after cooling. get shell powder;

[0021] (2) Preparation of antibacterial composite powder: Weigh titanium sulfate and add distilled water to dissolve it in a glass container, stir at a constant temperature of 30°C until a milky white precipitate is produced, adjust the pH value to 8 with sodium carbonate,...

Embodiment 2

[0025] A preparation method for an antibacterial composite coating, comprising the following steps:

[0026] (1) Preparation of shell powder: after the shells are cleaned, soak them in 8% sodium hydroxide solution for 2 hours, take them out and wash them with alkali to remove organic and inorganic impurities on the surface of the shells, wash them with distilled water, and put them into a blast drying box When drying, the temperature is 90°C, and the drying time is 24 hours. Then the dried shells are crushed in a pulverizer. After crushing, they are ball-milled with a star ball mill for 30 hours, passed through a 100-mesh sieve, and calcined at a high temperature of 1100°C for 2.5 hours. After cooling Grinding to obtain shell powder;

[0027] (2) Preparation of antibacterial composite powder: Weigh titanium sulfate into a glass container and add distilled water to dissolve it, stir at a constant temperature of 30°C until a milky white precipitate is produced, adjust the pH val...

Embodiment 3

[0031] A preparation method for an antibacterial composite coating, comprising the following steps:

[0032] (1) Preparation of shell powder: After the shells are cleaned, soak them in 8% sodium hydroxide solution for 3 hours, take them out and wash with alkali to remove organic and inorganic impurities on the surface of the shells, wash them with distilled water, and put them into a blast drying box When drying, the temperature is 100°C, and the drying time is 24 hours. Then the dried shells are crushed in a pulverizer. After crushing, they are ball-milled with a star ball mill for 48 hours, passed through a 100-mesh screen, calcined at 1200°C for 2 hours, and ground after cooling. get shell powder;

[0033] (2) Preparation of antibacterial composite powder: Weigh titanium sulfate and add distilled water to dissolve it in a glass container, stir at a constant temperature of 30°C until a milky white precipitate is produced, adjust the pH value to 9 with sodium carbonate, mix t...

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PUM

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Abstract

The invention discloses a preparation method of an antibacterial composite coating, and belongs to the technical field of composite coating processing. The preparation method comprises the following steps: (1) preparing shell powder; (2) preparing an antibacterial composite powder; (3) preparing a modified antibacterial composite powder; and (4) preparing the antibacterial composite coating. The antibacterial composite coating prepared by the invention can reduce the water absorption rate of the coating and improve the corrosion resistance of the coating; theantibacterial composite coating containsthree antibacterial components including shell powder, titanium dioxide and zinc oxide; the shell powder has adsorbability and is nontoxic, can be used as an excellent carrier ofantibacterial materials, is rich in an alkaline catalyst and chitin, and has remarkable antibacterial and bactericidal effects on escherichia coli, salmonella, staphylococcus aureus and the like, and titanium dioxideand zinc oxide have a relatively strong antibacterial effect, and also have self-cleaning performance and negative ion release capacity.

Description

technical field [0001] The invention belongs to the technical field of composite paint processing, and in particular relates to a preparation method of an antibacterial composite paint. Background technique [0002] With the development and progress of society and the improvement of material living standards, people have begun to consider the comfort and environmental protection of decorative materials, especially exterior wall latex paint, in the selection of building decoration materials for the reconstruction of residential buildings and other buildings and decoration. Multifunctional requirements are one of the important conditions for material selection. As an important product category in home decoration materials, coatings for building wall decoration directly reflect and affect the effect and function of home decoration. In recent years, the market demand for this type of products tends to be multi-functional, high added value and high-grade. Therefore, according to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/02C09D5/14C09D5/08
CPCC08K2003/2241C08K2003/2296C08K2003/265C08K2003/3045C09D5/08C09D5/14C09D175/02C08K13/04C08K9/04C08K3/22C08K3/26C08K3/28C08K3/30
Inventor 文书记
Owner 文书记
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