Surface modification processes for metals to enhance their hydrophobic properties, thereby reducing corrosion and biofilm formation.

Abstract

OCR 10KL (28 / 05 / 2568) A process of modifying metal surfaces to increase their hydrophobic properties, so that they have non-hydrophobic characteristics. Water-repellent, reduces corrosion and minimizes biofilm formation on surfaces. Includes the following steps: Cleaning. Metal workpieces using alcohol and water, respectively. Surface treatment of metal workpieces by creating hydroxide groups. Coating. The metal surface is treated with surface modifiers and then dried through heat treatment.

Claims

OCR 10KL (28 / 05 / 2568) 1. Surface modification processes for metals to increase their hydrophobic properties, thereby giving them non-hydrophobic characteristics. Hydrophilic, reduces corrosion and minimizes biofilm formation on surfaces. The process involves the following steps: A. Cleaning metal workpieces with alcohol and water, respectively. B. Surface treatment of metal workpieces by creating hydroxide groups through immersion in a solution. Hydrogen peroxide at a concentration of 10-30% by mass per volume of water at a certain temperature. 25-120 degrees Celsius for 30 minutes to 6 hours. C. Surface coating of metal with surface modifiers, by taking the metal workpiece that has been surface-modified in... Step B. Add the mixture to the surface modifier and stir the surface modifier at a speed of 5-500 revolutions per minute. Minutes, for 10-360 minutes, at a temperature of 25-30 degrees Celsius. Where the surface conditioner is composed of...

0. Perfluorochemicals (PFCs) concentration 0.1-5.0 percent by mass per volume of alcohol.

0. Filler material, concentration 0.1-5.0% by mass per volume. alcohol Alcohol acts as a solvent. Where these perfluorochemicals are orthosilicate compounds. Si(OR1)3(CH2)2(R2), where R1 is an alkyl group with 1-2 carbon atoms, and R2 is a fluorinated carbon group (-(CF2)x-CF3) where X represents 5-7 carbon atoms. Where the filler can be selected from titanium dioxide. Zinc oxide, menadione, or a mixture of these fillers. D. Drying the metal through heat treatment.

2. Surface modification processes for metals to increase their hydrophobic properties, thereby achieving non-hydrophobic properties. Hydrophilic, reduces corrosion and reduces biofilm formation on surfaces, as per Claim 1, whereby the process Coat the metal surface with the said surface modifier by taking the metal workpiece that has been surface modified in step 1. B. Add the surface conditioner and stir the surface conditioner at a speed of 200-400 revolutions per minute. For 60-120 minutes at a temperature of 25-30 degrees Celsius.

3. Surface modification processes for metals to increase their hydrophobic properties, thereby achieving non-hydrophobic characteristics. Hydrophilic, reduces corrosion and reduces biofilm formation on surfaces, as per Claim 1, whereby the process The cleaning of metal workpieces with alcohol and water, in the sequence described, is performed using an ultrasonic cleaner. Nicotine at room temperature for 10-40 minutes.

4. Surface modification processes for metals to increase their hydrophobic properties, thereby achieving non-hydrophobic characteristics. Hydrophilic, reduces corrosion and reduces biofilm formation on surfaces, as per Claim 1, which states that alcohol... The options available are methyl alcohol, ethyl alcohol, and propyl alcohol. Isopropyl alcohol, butyl alcohol, or a mixture of these alcohols.

5. Surface modification processes for metals to increase their hydrophobic properties, thereby achieving non-hydrophobic characteristics. Hydrophilic, reduces corrosion and reduces biofilm formation on surfaces, as per Claim 1, whereby the curing process... The metal should be dried by baking at a temperature of 80-140 degrees Celsius for 10-60 minutes.

6. Surface modification processes for metals to increase their hydrophobic properties, thereby achieving non-hydrophobic characteristics. Hydrophilic, reduces corrosion and reduces biofilm formation on surfaces, as per claim 1, where titanium dioxide... These oxides have particle sizes ranging from 10 to 40 nanometers.

7. Surface modification processes for metals to increase their hydrophobic properties, thereby achieving non-hydrophobic characteristics. Hydrophilic, reduces corrosion and reduces biofilm formation on surfaces, as per Claim 1, which states that zinc oxide... These particles have a size range of 20-40 nanometers.

8. Surface modification processes for metals to increase their hydrophobic properties, thereby achieving non-hydrophobic characteristics. Hydrophilic, reduces corrosion and reduces biofilm formation on surfaces, as per Claim 1, which states that menadione... The particle size is in the range of 300-500 nanometers.

9. Surface modification processes for metals to increase their hydrophobic properties, thereby achieving non-hydrophobic properties. Hydrophilic, reduces corrosion and reduces biofilm formation on surfaces, as per Claim 1, where such water is selective. Obtained from deionized water, water that has passed through a reverse osmosis system.

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