Schlebrowski2020ROS

Crossreferenz:---
Autor:
Schlebrowski, Torben
Acharchi, Halima
Hahn, Barbara
Wehner, Stefan, https://www.uni-koblenz-landau.de/de/koblenz/fb3/ifin/physik/ueberuns/professoren/wehner
Fischer, Christian B., https://www.uni-koblenz-landau.de/de/koblenz/fb3/ifin/physik/ueberuns/professoren/fischer
Titel:Refinement of Sustainable Polybutylene Adipate Terephthalate (PBAT) with Amorphous Hydrogenated Carbon Films (a‐C:H) Revealing Film Instabilities Influenced by a Thickness‐Dependent Change of sp2/sp3 Ratio
Journal:
MDPI materials,
Band:---
Nummer:---
Seiten:---
Monat:2
Jahr:2020
Bemerkung:---
Abstrakt:The increasing use of polymers is related to a growing disposal problem. Switching to biodegradable polymers such as polybutylene adipate terephthalate (PBAT) is a feasible possibility, but after industrial production of commercially available material PBAT is not suitable for every application. Therefore, surface refinements with amorphous hydrogenated carbon films (a‐C:H) produced by plasma‐assisted chemical vapor deposition (PE‐CVD) changing the top layer characteristics are used. Here, 50 μm‐thick PBAT films are coated with a‐C:H layers up to 500 nm in 50 nm steps. The top surface sp2/sp3 bonding ratios are analyzed by X‐ray photoelectron spectroscopy (XPS) and near‐edge X‐ray absorption fine structure (NEXAFS) both synchrotronbased. In addition, measurements using diffuse reflectance infrared Fourier transform spectroscopy (DRIFT) were performed for detailed chemical composition. Surface topography was analyzed by scanning electron microscopy (SEM) and the surface wettability by contact angle measurements. With increasing a‐C:H layer thickness not only does the topography change but also the sp2 to sp3 ratio, which in combination indicates internal stress‐induced phenomena. The results obtained provide a more detailed understanding of the mostly inorganic a‐C:H coatings on the biodegradable organic polymer PBAT via in situ growth and stepwise height‐dependent analysis.
Kategorie:
Hydrogenated Carbon Films
weitere Felder:
arbeitsgruppe = SurfaceScience
institute = Physik
intern = NO
fachbereich = FB3
projekt = DLC
peer = YES
Literaturschlüssel:Schlebrowski2020ROS
Beteiligte Einrichtungen:Institut für Integrierte Naturwissenschaften
Literaturtyp:article