Determination of the wettability of gaboon wood (Aucoumea klaineana Pierre)
Journal Title: Annals of WULS, Forestry and Wood Technology; Zeszyty naukowe SGGW - Year 2016, Vol 93, Issue
Abstract
Determination of the wettability of gaboon wood (Aucoumea klaineana Pierre). The examined gaboon wood is used in European countries mostly for the production of plywood, windows and elevations. In this work, the wettability of gaboon wood was determined on the basis of the sessile drop method, using wood contact angle measurement with water and diiodomethane. The characteristics determined were the surface free energy for wood, wetting energy, spreading coefficient, work of adhesion and surface tension for the wood - water and wood - diiodomethane structure. The course of the wettability process, particularly in case of polar liquid (water), demonstrates significant dynamics. Satisfactory stabilization of the process occurs after about 30 sec from placing a droplet, and this time should be considered optimal. The presence of striped and irregular grain translates into an increase of the changeability of the tested surface wettability indicators.
Authors and Affiliations
Agnieszka Kurowska, Paweł Kozakiewicz
Keywords
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