Abstract
This research which was conducted to determine the best coatings on ferrous metals to prevent corrosion by using sol gel spin coating method. TiO2 coating material which is used the addition of epoxy resin binder. The comparison used in these TiO2 coatings: resin: hardener is 1:4: 4. The process of synthesis TiO2 main materials used are TiCl3, distilled and NH4OH. From mixing these materials will be obtained precipitate and then the precipitate dried at a temperature of 200 °C for 6 hours to obtain titanium powder. This coating is done by varying the temperature of 100 °C, 125 °C, 150 °C for 1 hour with rotation speed of 3500 rpm. Crystal structure testing by using the XRD where known that the crystal structure formed the anatase phase. Testing the morphological structure were performed using SEM which produce images of TiO2 cubic shape. Testing the corrosion rate showed that the coated samples is more resistant to corrosion than the uncoated samples. The rate of corrosion on metal samples without coating is 40.0320 cm/year, while the rate of corrosion on metal coated sample was 2.8420 cm/year; 3.2440 cm/year; 3.5020 cm/year. Where each temperature is 100 °C, 125 °C, 150 °C.
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