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Corrosion Protection of 5083 AA in SalineWater by Polyacrylonitrile Nanofibers

Journal of Renewable Materials 2021年第11期9卷 1927-1939页

作者： Enas H.Ali Juman A.Naser Zainab W.Ahmed taki a.himdan Department of Chemistry College of Education for Pure Science-Ibn Al-HaithamUniversity of BaghdadBaghdadIraq

Polymeric nanofibers are a promising technology to protect the metal surfaces from *** the literature search,the use of polyacrylonitrile nanofibres(PANNFs)as a corrosion inhibitor coating for aluminum alloys has not been *** work includes the development of a new,lightweight,high surface area and efficient coating of PANNFs that produced using electrospinning process to resist the corrosion of aluminum alloys(AA5083)which immersed in 0.6 M NaCl at alkaline medium(pH=12)and acidic medium(pH=1)at a range of temperatures(293–323)*** PANNFs coating was successfully deposited on AA 5083 specimens,where these samples were considered as a collector electrode in the electrospinning *** corrosion experiments of the aluminum alloys coated with PANNFs before and after immersion in both corrosive mediums were investigated using cyclic potential polarization(CPP).The results confirmed that the PANNFs coating was able to protect the surface of the aluminum specimens from corrosion,by reducing the corrosion current and increasing the surface polarization resistance,thus reducing the corrosion *** protection efficiency was found in the alkaline medium 98.8%while in the acidic medium 83.3%.So,it was in both mediums decreased with the increase in *** shape,distribution and size of the polymeric nanofibers that formed the coating were also examined using field emission scanning electron microscopy(FE-SEM)and the percentages of the structural components of these fibers were detected using the X-ray dispersion spectroscopy(EDS).The surface of aluminum specimens was completely covered by *** electrospun nanofibers have worn out and lined up spacing after immersion in the corrosive *** diameters average of PANNFs was found to be about 200 and 150 nm before and after immersion,respectively.

关键词： Corrosion protection nanofibers polyacrylonitrile aluminum alloy saline medium protection efficiency

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