Stratification of nano-pigments in anti-corrosive coatings by means of magnetic field - Publikacja - MOST Wiedzy

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Stratification of nano-pigments in anti-corrosive coatings by means of magnetic field

Abstrakt

The concept of self-stratification of coatings, although attractive, causes difficulties in its practical use, especially when pigments are added to the resins. An alternative way of obtaining a multilayer structure in a single step was presented. Using the inhomogeneous magnetic field and magnetically active components of the coating, the possibility of vertically graded differentiation of the one layer properties has been verified. For this purpose, the magnetic properties of nickel ferrite (NiFe2O4) nano-particles and magnetic field for their transport in a wet coating were used. It has been shown that it is possible to use the magnetic field to transport magnetic ferrite, used as active anticorrosive pigments, near the coating/substrate interface, in the initially homogeneous wet paint layer, during film formation. These results prove that magnetic ferrite pigments can be magnetically manipulated in liquid coating layer applied on the substrate. Using the impedance spectroscopy technique, it was possible to detect stratification by analyzing complex capacity diagrams. As a result of impedance tests, better anti-corrosive properties of the system hardened in the presence of the magnetic field were demonstrated.

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Kategoria:
Publikacja w czasopiśmie
Typ:
artykuły w czasopismach
Opublikowano w:
PROGRESS IN ORGANIC COATINGS nr 147,
ISSN: 0300-9440
Język:
angielski
Rok wydania:
2020
Opis bibliograficzny:
Miszczyk A., Darowicki K.: Stratification of nano-pigments in anti-corrosive coatings by means of magnetic field// PROGRESS IN ORGANIC COATINGS -Vol. 147, (2020), s.105869-
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1016/j.porgcoat.2020.105869
Weryfikacja:
Politechnika Gdańska

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