O-phenylenediamine-containing polyaniline coatings for corrosion protection of stainless steel (CROSBI ID 109992)
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Podaci o odgovornosti
Kraljić, Marijana ; Žic, Mark ; Duić, Ljerka
engleski
O-phenylenediamine-containing polyaniline coatings for corrosion protection of stainless steel
In recent yeras it has been recognized that conductive polymer coatings on steel surface stabilise the potential of the substrate in the passive region and thus protect it from corrosion. This work investigates the corrosion protection of stainless steel by electrochemically deposited polyaniline (PANI) and polyaniline modified by addition of o-phenylenediamine in 3M H2SO4. The efficieny of PANI coatings in corrosion protection was tested by monitoring the open circuit potential. It is shown that the time of maintaining the potential in the passive region increases with the increase of PANI layer thickness and especially with the inrease of o-PDA addition.
corrosion protection ; polyaniline ; ortho-phenylenediamine ; electrochemical polymerisation
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