Corrosion of Mild Steel with Composite Alkyd Polyaniline-benzoate Coating
Apstrakt
The synthesis of the polyaniline in the emeraldine salt form by the procedure suggested by IUPAC is successful preformed. Emeraldine salt form is deprotonated with ammonium hydroxide and reprotonated with benzoic acid. Using the UV-visible spectroscopy the doping degree of 0.25 is estimated. The corrosion performances of the base coating and composite coating with 5 wt.% of polyaniline benzoate on mild steel are investigated by the means of linear polarization measurements and results are compared with in site determined iron concentrations in the corrosive media using ASTM 1,10-phenanthroline method and the corrosion current density is recalculated. Excellent agreement between these two methods is achieved. It is shown that composite containing polyaniline, offers an order of magnitude better corrosion protection than base coating, and more than three order of magnitude than pure mild steel.
Ključne reči:
Conducting polymers / Reprotonation / Polarization resistance / Corrosion currentIzvor:
International Journal of Electrochemical Science, 2017, 12, 9, 8683-8694Izdavač:
- Electrochemical Science Group, Beograd
Finansiranje / projekti:
- Elektrohemijska sinteza i karakterizacija nanostrukturiranih funkcionalnih materijala za primenu u novim tehnologijama (RS-MESTD-Basic Research (BR or ON)-172046)
DOI: 10.20964/2017.09.57
ISSN: 1452-3981
WoS: 000412639500064
Scopus: 2-s2.0-85029529355
Institucija/grupa
Tehnološko-metalurški fakultetTY - JOUR AU - Salem, Ayad A. AU - Grgur, Branimir PY - 2017 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3653 AB - The synthesis of the polyaniline in the emeraldine salt form by the procedure suggested by IUPAC is successful preformed. Emeraldine salt form is deprotonated with ammonium hydroxide and reprotonated with benzoic acid. Using the UV-visible spectroscopy the doping degree of 0.25 is estimated. The corrosion performances of the base coating and composite coating with 5 wt.% of polyaniline benzoate on mild steel are investigated by the means of linear polarization measurements and results are compared with in site determined iron concentrations in the corrosive media using ASTM 1,10-phenanthroline method and the corrosion current density is recalculated. Excellent agreement between these two methods is achieved. It is shown that composite containing polyaniline, offers an order of magnitude better corrosion protection than base coating, and more than three order of magnitude than pure mild steel. PB - Electrochemical Science Group, Beograd T2 - International Journal of Electrochemical Science T1 - Corrosion of Mild Steel with Composite Alkyd Polyaniline-benzoate Coating EP - 8694 IS - 9 SP - 8683 VL - 12 DO - 10.20964/2017.09.57 ER -
@article{ author = "Salem, Ayad A. and Grgur, Branimir", year = "2017", abstract = "The synthesis of the polyaniline in the emeraldine salt form by the procedure suggested by IUPAC is successful preformed. Emeraldine salt form is deprotonated with ammonium hydroxide and reprotonated with benzoic acid. Using the UV-visible spectroscopy the doping degree of 0.25 is estimated. The corrosion performances of the base coating and composite coating with 5 wt.% of polyaniline benzoate on mild steel are investigated by the means of linear polarization measurements and results are compared with in site determined iron concentrations in the corrosive media using ASTM 1,10-phenanthroline method and the corrosion current density is recalculated. Excellent agreement between these two methods is achieved. It is shown that composite containing polyaniline, offers an order of magnitude better corrosion protection than base coating, and more than three order of magnitude than pure mild steel.", publisher = "Electrochemical Science Group, Beograd", journal = "International Journal of Electrochemical Science", title = "Corrosion of Mild Steel with Composite Alkyd Polyaniline-benzoate Coating", pages = "8694-8683", number = "9", volume = "12", doi = "10.20964/2017.09.57" }
Salem, A. A.,& Grgur, B.. (2017). Corrosion of Mild Steel with Composite Alkyd Polyaniline-benzoate Coating. in International Journal of Electrochemical Science Electrochemical Science Group, Beograd., 12(9), 8683-8694. https://doi.org/10.20964/2017.09.57
Salem AA, Grgur B. Corrosion of Mild Steel with Composite Alkyd Polyaniline-benzoate Coating. in International Journal of Electrochemical Science. 2017;12(9):8683-8694. doi:10.20964/2017.09.57 .
Salem, Ayad A., Grgur, Branimir, "Corrosion of Mild Steel with Composite Alkyd Polyaniline-benzoate Coating" in International Journal of Electrochemical Science, 12, no. 9 (2017):8683-8694, https://doi.org/10.20964/2017.09.57 . .