Inhibition of sulfate-reducing bacteria influenced corrosion on hydrophobic poly(dimethylsiloxane)coatings

作     者：Innocent O.Arukalam C.N.Njoku Lihui Yang Baorong Hou Ying Li Innocent O.Arukalam;C.N.Njoku;Lihui Yang;Baorong Hou;Ying Li

作者机构：Corrosion and Protection DivisionInstitute of Metal ResearchChinese Academy of SciencesShenyang 110016China Shenyang National Laboratory for Materials ScienceNortheastern UniversityShenyang 110819China Department of Polymer and Textile EngineeringFederal University of TechnologyP.M.B.1526 Owerri Nigeria Key Laboratory of Marine Environmental Corrosion and Bio-foulingInstitute of OceanologyChinese Academy of SciencesQingdao 266071China Open Studio for Marine Corrosion and ProtectionPilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266237China Advanced Functional Materials/Corrosion Research GroupAfrica Centre of Excellence in Future Energies and Electrochemical Systems(ACE-FUELS)Federal University of Technology Owerri(FUTO)Nigeria 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：2020年第52卷第17期

页      面：198-206页

核心收录：

学科分类：081702[工学-化学工艺] 08[工学] 0817[工学-化学工程与技术] 

基　　金：supported financially by the Chinese Academy of Sciences–President’s International Fellowship Initiative for Postdoctoral Research(No.2015PT005) the National Natural Science Foundation of China(Nos.51650110506 and 51871227) the Research Fund of Open Studio for Marine Corrosion and Protection and Pilot National Laboratory for Marine Science and Technology(Qingdao) 

主　　题：Corrosion Hydrophobic coating Perfluorodecyltrichlorosilane Poly(dimethylsiloxane) Sulfate-reducing bacteria 

摘      要：Sulfate-reducing bacteria(SRB)has been pointed out as one of the causative agents of microbial induced corrosion in the marine *** address this problem,novel strategies are being experimented as against the earlier methods which have been banned due to their toxic effects on useful aquatic ***,the aim of this study was to investigate the effect of non-toxic perfluorodecyltrichlorosilane(PFDTS)on resistance of hydrophobic poly(dimethylsiloxane)/phosphoric acid-treated zinc oxide(PDMS/PA-treated ZnO)coatings to SRB-induced biofouling and *** surface features of the coatings before and after exposure to SRB/NaCl solution were analyzed by scanning electron microscopy(SEM).Wettability of the coatings before and after exposure was also *** interaction of SRB with the coatings was investigated by FTIR *** resistance performance of the modified coatings against SRB-induced corrosion was monitored by electrochemical impedance spectroscopy(EIS).The EIS measurements revealed that 0.20 g PFDTS-based coating displayed highest corrosion resistance with impedance modulus of 6.301×10^10 after 15 d of exposure to SRB/NaCl *** results were corroborated by surface and chemical interaction analyses,and thus,indicate that 0.20 g PFDTSmodified PDMS/PA-treated ZnO coating has potentials for excellent SRB-induced corrosion resistance and anti-biofouling performance.