Sie können Bookmarks mittels Listen verwalten, loggen Sie sich dafür bitte in Ihr SLUB Benutzerkonto ein.
Medientyp:
E-Artikel
Titel:
From Waste to Valuable Resource: Lignin as a Sustainable Anti-Corrosion Coating
Beteiligte:
Dastpak, Arman;
Yliniemi, Kirsi;
De Oliveira Monteiro, Mariana Cecilio;
Höhn, Sarah;
Virtanen, Sannakaisa;
Lundström, Mari;
Wilson, Benjamin P.
Erschienen:
MDPI AG, 2018
Erschienen in:
Coatings, 8 (2018) 12, Seite 454
Sprache:
Englisch
DOI:
10.3390/coatings8120454
ISSN:
2079-6412
Entstehung:
Anmerkungen:
Beschreibung:
In this study, a waste of biorefinery—lignin—is investigated as an anticorrosion coating on stainless steel. Corrosion behavior of two lignin types (hardwood beech and softwood spruce) was studied by electrochemical measurements (linear sweep voltammetry, open circuit potential, potentiostatic polarization, cyclic potentiodynamic polarization, and electrochemical impedance measurements) during exposure to simulated body fluid (SBF) or phosphate buffer (PBS). Results from linear sweep voltammetry of lignin-coated samples, in particular, demonstrated a reduction in corrosion current density between 1 and 3 orders of magnitude cf. blank stainless steel. Furthermore, results from cross cut adhesion tests on lignin-coated samples demonstrated that the best possible adhesion (grade 0) of ISO 2409 standard was achieved for the investigated novel coatings. Such findings suggest that lignin materials could transform the field of organic coatings towards more sustainable alternatives by replacing non-renewable polymer coatings.