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
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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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