Back to Search
Start Over
Reducing the thickness swelling of a model wood composite by creating a three-dimensional adhesive network.
- Source :
-
International Wood Products Journal . Nov2016, Vol. 7 Issue 4, p202-207. 6p. - Publication Year :
- 2016
-
Abstract
- Wood composites undergo irreversible thickness swelling and strength losses when they are exposed to water, and there is strong interest in developing cost-effective solutions to this problem. We hypothesised that a composite with more adhesive connections in theZ-(thickness)-direction would be less susceptible to thickness swelling. We test this hypothesis using a model composite consisting of perforated veneer that allowed a polyurethane adhesive to create cross-links in theZ-direction. Model composite specimens were submerged in water, air-dried and their irreversible thickness swelling and surface topography were measured.Z-direction cross-links significantly reduced the thickness swelling of both yellow cedar and white spruce specimens, but the inter-connected adhesive network retained its integrity better in spruce than in cedar specimens. Further research is needed to develop practical ways of creatingZ-direction cross-links in composites that resemble commercial products, and also to evaluate the effects they have on the mechanical properties of composites. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 20426445
- Volume :
- 7
- Issue :
- 4
- Database :
- Academic Search Index
- Journal :
- International Wood Products Journal
- Publication Type :
- Academic Journal
- Accession number :
- 120211802
- Full Text :
- https://doi.org/10.1080/20426445.2016.1204514