Surface energy characterization of thermally modified wood particles exposed to humidity cycling using inverse gas chromatography
2014 (English)In: / [ed] Nunes, L., Jones, D., Hill, C. and Militz, H., 2014Conference paper, Poster (Other academic)
The objective of this work was to study surface energetics of thermally modified wood particles exposed to dry-humid cycling. This information can give insight in the adhesion properties between the modified wood and composite matrices, adhesives or coatings. The surface energy characterization as well as the dry-humid cycling was performed using inverse gas chromatography (IGC). Duplicates of thermally modified and unmodified spruce particles with size 0-0.125 mm were investigated and conditioned in dry-humid cycles at 0-75 % RH and 0‑25 % RH. The BET specific surface area as well as the dispersive surface energy heterogeneity (or distribution) at different surface coverage was determined. The results showed similar trends for the different cycles in the dry and humid states, respectively. The difference in dispersive surface energy distribution between the dry and humid state was more pronounced at the lower surface coverage.
Place, publisher, year, edition, pages
Humidity cycling, inverse gas chromatography (IGC), surface energy characterization, thermally modified wood
Composite Science and Engineering
IdentifiersURN: urn:nbn:se:kth:diva-172957OAI: oai:DiVA.org:kth-172957DiVA: diva2:851050
The Seventh European Conference on Wood Modification (ECWM7).
FunderKnowledge FoundationSwedish Foundation for Strategic Research
Stiftelsen Nils och Dorthi Troëdssons forskningsfond (Projektnr 793/12 Hydro-termo-mekanisk modifiering av trä)
EcoBuild Institute Excellence Centre 2015-09-032015-09-032015-09-04Bibliographically approved