Surface energy characterization of thermally modified wood using inverse gas chromatography

IRG/WP 13-20532

S Källbom, K Segerholm, D Jones, M Wålinder

The objective of this work is to characterize surface energetics of thermally modified wood. Such information may be useful for a better understanding and predictions of adhesion properties between the modified wood and other material systems, e.g. coatings, adhesives or matrices in composites. Inverse gas chromatography (IGC) was used to study the surface energy characteristics of thermally modified spruce in particle form. Two different wood component samples were prepared, one with a larger and one with a smaller particle size distribution. Measurements of BET specific surface area and dispersive surface energy distribution of the particle samples are presented. Results indicate that a ground wood component of a finer size distribution of thermally modified wood is less energetically heterogeneous compared with a component with a larger size distribution.


Keywords: inverse gas chromatography (IGC), thermally modified wood, surface energy characterization

Conference: 13-06-16/20 Stockholm, Sweden


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