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Electrochemical noise of unalloyed steel in mixtures of water-based binders and pigments

  • The development of organic coatings for corrosion protection is an elaborate process with a multitude of often interminable investigations and tests of protection properties. Electrochemical methods support the processes of development to a great extent and help to understand mechanisms of action and failure. They are usually carried out on applied coating systems with a completed formulation. An examination possibility is presented in this publication that enables the characterization of waterbased coatings with different formulation variations in the liquid (aqueous) state with the aid of electrochemical noise technique. Thus, selection of binders, pigments, and other additives is supported essentially and made more efficient in a very early Phase of formulation development. The paper shows that a unique insight into the dynamic processes of a metal in contact with an aqueous coating dispersion is possible using the example of the development of zinc-free corrosion-inhibitingThe development of organic coatings for corrosion protection is an elaborate process with a multitude of often interminable investigations and tests of protection properties. Electrochemical methods support the processes of development to a great extent and help to understand mechanisms of action and failure. They are usually carried out on applied coating systems with a completed formulation. An examination possibility is presented in this publication that enables the characterization of waterbased coatings with different formulation variations in the liquid (aqueous) state with the aid of electrochemical noise technique. Thus, selection of binders, pigments, and other additives is supported essentially and made more efficient in a very early Phase of formulation development. The paper shows that a unique insight into the dynamic processes of a metal in contact with an aqueous coating dispersion is possible using the example of the development of zinc-free corrosion-inhibiting pigments for waterbased coatings. In addition, it is presented in which way the results correlate with the performance of applied coatings.zeige mehrzeige weniger

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Metadaten
Autor*innen:A. Heyn, Paul Rosemann, Martin BabutzkaORCiD, S. Bender
Dokumenttyp:Zeitschriftenartikel
Veröffentlichungsform:Verlagsliteratur
Sprache:Englisch
Titel des übergeordneten Werkes (Englisch):Materials and Corrosion
Jahr der Erstveröffentlichung:2017
Herausgeber (Institution):Gesellschaft für Korrosionsschutz
Verlag:Wiley-VCH Verlag
Verlagsort:Weinheim
Jahrgang/Band:68
Ausgabe/Heft:12
Erste Seite:1295
Letzte Seite:1301
DDC-Klassifikation:Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Angewandte Physik
Freie Schlagwörter:Corrosion; Corrosion protection; Corrosion protection pigments; Electrochemical noise; Organic coatings
DOI:10.1002/maco.201709671
ISSN:0947-5117
ISSN:1521-4176
Verfügbarkeit des Dokuments:Datei im Netzwerk der BAM verfügbar ("Closed Access")
Datum der Freischaltung:06.12.2017
Referierte Publikation:Ja
Datum der Eintragung als referierte Publikation:21.12.2017
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