Polyhexamethylene guanidine molybdate as an efficient antibacterial filler in epoxy coating for inhibiting sulfate reducing bacteria biofilm
Progress in Organic Coatings(2023)
摘要
Readily synthesized and highly antibacterial polyhexamethylene guanidine molybdate (PHMG-MoO4) can be used as a filler to greatly improve the resistance of epoxy coating to sulfate reducing bacteria (SRB) biofilm. In SRB inoculated medium, no SRB biofilm formed on PHMG-MoO4/epoxy coating after 120 days, and the corrosion current density of the epoxy coating painted carbon steel decreased by 99.0 % after addition of PHMG-MoO4 in the coating. There were also fewer fouling organisms on PHMG-MoO4/epoxy coating after 4 months of immersion in the actual seawater. The PHMG-MoO4 with low water solubility can remain in epoxy coating for a long time and therefore effectively and continuously inhibited the bacteria on the coating.
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关键词
Epoxy coatings,Microbiological corrosion,Antibacterial,Anti-fouling
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