Silicone-enriched surface of immersed polyurethane-POSS antifouling coating |
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| Authors: | Mohammad Mizanur Rahman Md Hasan Zahir Md Bashirul Haq A Madhan Kumar Md Eyasin Arafat Mohammad Mahbub Rabbani |
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| Institution: | 1. Center of Research Excellence in Corrosion, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia mrahman@kfupm.edu.sa mohammadmizanur@gmail.com https://orcid.org/0000-0002-9302-3185;3. Center of Research Excellence in Renewable Energy, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia;4. Department of Petroleum Engineering, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia https://orcid.org/0000-0003-1414-9976;5. Center of Research Excellence in Corrosion, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia;6. Department of Mechanical Engineering, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia;7. Department of Chemistry, American International University-Bangladesh (AIUB), Dhaka, Bangladesh |
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| Abstract: | Abstract A series of waterborne polyurethane-polyhedral oligomeric silsesquioxane (WBPU-POSS) dispersions were synthesized. Different POSS contents were used to evaluate the effect of POSS content on silicone enrichment under both nonimmersed and immersed conditions. The impact of silicone enrichment under immersed conditions on antifouling properties was also evaluated. The structure of the WBPU-POSS coating was identified by FT-IR and 29Si-NMR. X-ray photoelectron spectroscopy (XPS) analysis confirmed a silicone-enriched surface with a certain composition of the WBPU-POSS coating under both nonimmersed and immersed conditions. The mechanical properties, hydrophilicity and hydrolytic degradation of the coating all varied with POSS content. The long-term antifouling performance of immersed coatings depends on surface silicone enrichment, which was found to be above 0.0021?mole POSS content in WBPU-POSS coatings. |
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| Keywords: | Polyurethane POSS fouling |
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https://orcid.org/0000-0002-9302-3185;3. Center of Research Excellence in Renewable Energy, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia;4. Department of Petroleum Engineering, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia