Morphological and Wettability Properties of Thin Coating Films Produced from Technical Lignins
Marc Borrega, Sonja Päärnilä, Luiz G. Greca, Anna-Stiina Jääskeläinen, Taina Ohra‐aho, Orlando J. Rojas, Tarja Tamminen
Abstract
(determined by Zisman plots). For comparison, the water wettability measured on lignin pellets obtained by mechanical compression tracked closely with the WCA obtained from the respective thin films. Considering the widely diverse chemical, molecular, and structural properties of the tested lignins, comprehensively documented here by using a battery of techniques, the solubility in water was found to be the most important and generic parameter to characterize the thin films. This points to the possibility of developing lignin coatings with predictable wetting behavior.
Topics & Concepts
WettingCoatingChemical engineeringMaterials scienceContact angleThin filmChemistryPolymer scienceNanotechnologyComposite materialEngineeringLignin and Wood ChemistryMaterials Engineering and ProcessingDyeing and Modifying Textile Fibers