Naufal Luqmanulhakim, Muhammad (2023) PENGARUH TEMPERATUR TERHADAP KEKUATAN BIOCOATING DENGAN SILIKA DARI EKSTRAK SEKAM PADI DAN GETAH DAMAR PADA MILD STEEL DALAM LARUTAN H2SO4. Master thesis, UNIVERSITAS SULTAN AGENG TIRTAYASA.
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Abstract
Biocoating is a natural anti-corrosion coating material that can be easily degraded and renewed. Rice husk extract and gum resin are alternative natural materials which are believed to have a relatively high silica content, so they can be used as a substitute for synthetic chemicals in protecting metals from corrosion. This research was conducted to determine the ability of bio-coating on mild steel in corrosive acid medium H2SO4 1 M. The experimental object used rice husk waste and resin resin as the main raw materials. The analytical method used is the weight loss method. Resin gum and silica sol which have been obtained from the ashing of rice husks are mixed to form a homogeneous product. Metal samples that have been coated with biocoating material were immersed in 1 M sulfuric acid solution, with silica concentration of 1500 ppm, variation times 1, 3, and 5 hours, and at temperatures of 30, 40, 60, and 80 °C. At 80 °C, the corrosion rate is very high, which proves that the temperature significantly affects the corrosion rate of mild steel immersed in an acid solution. The results showed that the best conditions were 5 hour of immersion time temperature of 40 °C, with an inhibition efficiency of 98%. based on the value of the adsorption constant indicates that there is a strong bond between the adsorbent and the adsorbate. The higher temperature, the higher activation energy value and the adsorption properties indicate that the biocoating works based on phisysorpsion, characterized by a gibbs energy value greater than -20 kJ/mol.
| Item Type: | Thesis (Master) | |||||||||
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| Additional Information: | Biocoating is a natural anti-corrosion coating material that can be easily degraded and renewed. Rice husk extract and gum resin are alternative natural materials which are believed to have a relatively high silica content, so they can be used as a substitute for synthetic chemicals in protecting metals from corrosion. This research was conducted to determine the ability of bio-coating on mild steel in corrosive acid medium H2SO4 1 M. The experimental object used rice husk waste and resin resin as the main raw materials. The analytical method used is the weight loss method. Resin gum and silica sol which have been obtained from the ashing of rice husks are mixed to form a homogeneous product. Metal samples that have been coated with biocoating material were immersed in 1 M sulfuric acid solution, with silica concentration of 1500 ppm, variation times 1, 3, and 5 hours, and at temperatures of 30, 40, 60, and 80 °C. At 80 °C, the corrosion rate is very high, which proves that the temperature significantly affects the corrosion rate of mild steel immersed in an acid solution. The results showed that the best conditions were 5 hour of immersion time temperature of 40 °C, with an inhibition efficiency of 98%. based on the value of the adsorption constant indicates that there is a strong bond between the adsorbent and the adsorbate. The higher temperature, the higher activation energy value and the adsorption properties indicate that the biocoating works based on phisysorpsion, characterized by a gibbs energy value greater than -20 kJ/mol. | |||||||||
| Uncontrolled Keywords: | corrosion, coating, biocoating, silica, mild steel korosi, coating, biocoating, silika, mild steel | |||||||||
| Subjects: | Q Science > QD Chemistry T Technology > TP Chemical technology |
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| Divisions: | 08-Pascasarjana > 84104-Magister Teknik Kimia 08-Pascasarjana |
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| Depositing User: | MUHAMMAD NAUFAL LUQMANULHAKIM | |||||||||
| Date Deposited: | 12 Dec 2023 10:48 | |||||||||
| Last Modified: | 14 Dec 2023 14:03 | |||||||||
| URI: | http://eprints.untirta.ac.id/id/eprint/31249 |
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