Preparation method of ion response type antibacterial and anticorrosive coating
An antibacterial anticorrosion and coating technology, which is applied in anticorrosion coatings, antifouling/underwater coatings, botanical equipment and methods, etc., can solve the problems of short antibacterial time limit, poor self-repair performance of antibacterial anticorrosion coatings, etc., and achieve broad application prospects Effect
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Embodiment 1
[0025] Step 1, Preparation of Nanocontainers
[0026] With 0.5g cetyltrimethylammonium bromide (CTAB), 1.5ml, 2.0mol / L NaOH solution, 200mLH 2 O mixed and stirred for 20 minutes, and kept the temperature at 60°C to make a mixed solution; slowly added 2ml of tetraethyl orthosilicate (TEOS) dropwise to the mixed solution, and kept stirring to obtain a solid precipitate; filtered to separate the solid precipitate, and then water, Wash with ethanol, dry, weigh 0.5g of solid precipitate and add to the solution prepared by 120ml of isopropanol + 6ml of HCl, disperse evenly by ultrasonic treatment, and then reflux and condense at 80°C for 4h, and the obtained substances are sequentially washed with deionized water , ethanol, and dried under vacuum to obtain SiO that can be used to load antibacterial agents 2 nano container.
[0027] Step 2, Antimicrobial Loading
[0028] Dissolve 0.01g of antibacterial agent in 10ml of absolute ethanol, add 0.1g of nanocontainer, mix and stir, ult...
Embodiment 2
[0034] Step 1, Preparation of Nanocontainers
[0035] With 0.8g cetyltrimethylammonium bromide (CTAB), 2ml, 1.5mol / L NaOH solution, 220mLH 2 O mixed and stirred for 25 minutes, and kept the temperature at 70°C to make a mixed solution; slowly added 2.5ml tetraethyl orthosilicate (TEOS) dropwise to the mixed solution, and stirred continuously to obtain a solid precipitate; the solid precipitate was separated by filtration, followed by water , washed with ethanol, dried, weighed 0.5g of solid precipitate and added to the solution prepared by 120ml of isopropanol + 6ml of HCl, dispersed evenly by ultrasonic treatment, and then refluxed and condensed at 80°C for 4h, and the obtained substances were sequentially deionized Washed with water and ethanol, and dried under vacuum to obtain SiO that can be used to load antibacterial agents 2 nano container.
[0036] Step 2, Antimicrobial Loading
[0037] Dissolve 0.02g of antibacterial agent in 10ml of absolute ethanol, add 0.4g of na...
Embodiment 3
[0043] Step 1, Preparation of Nanocontainers
[0044] With 1.0g cetyltrimethylammonium bromide (CTAB), 2.5ml, 1.8mol / L NaOH solution, 230mLH 2 O mixed and stirred for 30min, and kept the temperature at 75°C to make a mixed solution; slowly added 3ml of tetraethyl orthosilicate (TEOS) dropwise to the mixed solution, and stirred continuously to obtain a solid precipitate; filtered to separate the solid precipitate, followed by water, Wash with ethanol, dry, weigh 0.5g of solid precipitate and add to the solution prepared by 120ml of isopropanol + 6ml of HCl, disperse evenly by ultrasonic treatment, and then reflux and condense at 80°C for 4h, and the obtained substances are sequentially washed with deionized water , ethanol cleaning, and drying under vacuum to obtain SiO that can be used to load antibacterial agents 2 nano container.
[0045] Step 2, Antimicrobial Loading
[0046] Dissolve 0.06g of antibacterial agent in 10ml of absolute ethanol, add 0.3g of nanocontainer, mi...
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