Electrochemical properties and thermal stability of epoxy coatings electrodeposited on aluminium and modified aluminium surfaces
Elektrohemijske karakteristike i termička stabilnost epoksidnih kataforetskih prevlaka na aluminijumu i modifikovanim površinama aluminijuma
dc.creator | Mišković-Stanković, Vesna | |
dc.creator | Lazarević, Zorica Ž. | |
dc.creator | Kačarević-Popović, Zorica M. | |
dc.date.accessioned | 2021-03-10T09:55:33Z | |
dc.date.available | 2021-03-10T09:55:33Z | |
dc.date.issued | 2001 | |
dc.identifier.issn | 0352-5139 | |
dc.identifier.uri | http://TechnoRep.tmf.bg.ac.rs/handle/123456789/355 | |
dc.description.abstract | The corrosion behavior of epoxy coatings electrodeposited on aluminum, as well as on electrochemically and chemically modified aluminum were investigated during exposure to 3 % NaCl. Electrochemical impedance spectroscopy (EIS) and thermogravimetric analysis (TGA) were used for the determination of the protective properties of epoxy coatings on aluminum, anodized aluminum, phosphatized and chromatized-phosphatized aluminum. The protective properties of epoxy coatings on anodized and chromatized-phosphatized aluminum are significantly improved with respect to the same epoxy coatings on aluminum and phosphatized aluminum: higher values of the pore resistance and charge-transfer resistance, lower values of the coating capacitance, double-layer capacitance and relative permittivity (from EIS) smaller amount of absorbed water inside the coating (From TGA). On the other hand, the lower values of the ipdt temperature indicate a lower thermal stability of the epoxy coatings on anodized and chromatized-phosphatized aluminum. | en |
dc.description.abstract | Proučavano je koroziono ponašanje epoksidnih prevlaka dobijenih kataforetskim taloženjem na aluminijumu i elektrohemijski i hemijski modifikovanom aluminijumu tokom delovanja 3 % rastvora NaCl. Za određivanje zaštitnih osobina epoksidnih prevlaka na aluminijumu, anodiziranom aluminijumu, fosfatiranom i hromatno-fosfatiranom aluminijumu korišćene su metode spektroskopije elektrohemijske impedancije i termogravimetrijske analize. Zaštitne osobine epoksidnih prevlaka na anodiziranom i hromatno-fosfatiranom aluminijumu su značajno poboljšane u odnosu na iste epoksidne prevlake na aluminijumu i fosfatiranom aluminijumu: veće vrednosti otpornosti u porama prevlake i otpornosti prenosa naelektrisanja na graničnoj površini metal-elektrolit i manje vrednosti kapacitivnost prevlake, kapacitivnosti električnog dvojnog sloja i relativne permitivnosti prevlake (impedansna merenja) i manja količina absorbovane vode u prevlaci (termogravimetrijska analiza). S druge strane, manje vrednosti ipdt temperature ukazuju na manju termičku stabilnost epoksidnih prevlaka na anodiziranom i hromatno-fosfatiranom aluminijumu. | sr |
dc.publisher | Serbian Chemical Society, Belgrade | |
dc.rights | openAccess | |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/4.0/ | |
dc.source | Journal of the Serbian Chemical Society | |
dc.subject | electrodeposition | en |
dc.subject | epoxy coatings | en |
dc.subject | aluminium | en |
dc.subject | anodized aluminium | en |
dc.subject | phosphatized and chromatized- phosphatized aluminium | en |
dc.subject | corrosion | en |
dc.subject | EIS | en |
dc.subject | EIS | en |
dc.title | Electrochemical properties and thermal stability of epoxy coatings electrodeposited on aluminium and modified aluminium surfaces | en |
dc.title | Elektrohemijske karakteristike i termička stabilnost epoksidnih kataforetskih prevlaka na aluminijumu i modifikovanim površinama aluminijuma | sr |
dc.type | article | |
dc.rights.license | BY-NC-ND | |
dc.citation.epage | 880 | |
dc.citation.issue | 11-12 | |
dc.citation.other | 66(11-12): 871-880 | |
dc.citation.rank | M23 | |
dc.citation.spage | 871 | |
dc.citation.volume | 66 | |
dc.identifier.fulltext | http://TechnoRep.tmf.bg.ac.rs/bitstream/id/10874/0352-51390112871M.pdf | |
dc.identifier.rcub | https://hdl.handle.net/21.15107/rcub_vinar_2486 | |
dc.identifier.scopus | 2-s2.0-0035568571 | |
dc.identifier.wos | 000172840000012 | |
dc.type.version | publishedVersion |