Influence of screened fibre fractions on the properties of insulation panels made of different wood species. Brinker, S., Ahrens, C., Gurnik, M., Mayer, A. K., & Mai, C. Wood Material Science & Engineering, January, 2025.
Influence of screened fibre fractions on the properties of insulation panels made of different wood species [link]Paper  doi  abstract   bibtex   
The aim of this study was to produce wood fibre insulation panels (WFIP) from under-utilised wood species and to investigate how various fibre fractions and fibre dimensional distributions affect the hygricmechanical properties and thermal conductivity. Thermo-mechanical pulping (TMP) fibres from five wood species were separated into three fractions (unscreened, course, fine) using a tumbler screening machine. Rigid insulation panels with a target density of 110 kg m-3 were produced using 5 wt% polymeric diphenylmethane diisocyanate (pMDI) adhesive. Panels made from softwood fibres with a lower bulk density showed a different type of density profile compared to those made from hardwood fibres. The pattern of mean fibre length distribution density (q1) was similar for pine and larch as well as for beech and oak and was reflected in similar compression strength of the WFIP from the corresponding fractions. Water absorption was dependent on the wood species, irrespective of the fibre fraction. The hardwood panels (beech, oak) had a higher thermal conductivity (TC) than the softwood panels (spruce, pine, larch). The coarse fibre panels tended to have a higher TC than the fine fibre panels. Overall, the wood species and screening variants could be used to produce WFIP for indoor use.
@article{brinker_influence_2025,
	title = {Influence of screened fibre fractions on the properties of insulation panels made of different wood species},
	issn = {1748-0272, 1748-0280},
	url = {https://www.tandfonline.com/doi/full/10.1080/17480272.2025.2452206},
	doi = {10.1080/17480272.2025.2452206},
	abstract = {The aim of this study was to produce wood fibre insulation panels (WFIP) from under-utilised wood species and to investigate how various fibre fractions and fibre dimensional distributions affect the hygricmechanical properties and thermal conductivity. Thermo-mechanical pulping (TMP) fibres from five wood species were separated into three fractions (unscreened, course, fine) using a tumbler screening machine. Rigid insulation panels with a target density of 110 kg m-3 were produced using 5 wt\% polymeric diphenylmethane diisocyanate (pMDI) adhesive. Panels made from softwood fibres with a lower bulk density showed a different type of density profile compared to those made from hardwood fibres. The pattern of mean fibre length distribution density (q1) was similar for pine and larch as well as for beech and oak and was reflected in similar compression strength of the WFIP from the corresponding fractions. Water absorption was dependent on the wood species, irrespective of the fibre fraction. The hardwood panels (beech, oak) had a higher thermal conductivity (TC) than the softwood panels (spruce, pine, larch). The coarse fibre panels tended to have a higher TC than the fine fibre panels. Overall, the wood species and screening variants could be used to produce WFIP for indoor use.},
	language = {en},
	urldate = {2025-02-11},
	journal = {Wood Material Science \& Engineering},
	author = {Brinker, Sascha and Ahrens, Christian and Gurnik, Michael and Mayer, Aaron Kilian and Mai, Carsten},
	month = jan,
	year = {2025},
	pages = {1--11},
	file = {Brinker et al. - 2025 - Influence of screened fibre fractions on the prope.pdf:C\:\\Users\\Eva\\Zotero\\storage\\XFEPZKMT\\Brinker et al. - 2025 - Influence of screened fibre fractions on the prope.pdf:application/pdf},
}

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