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Effect of Bio-Based Additives on Physico-Mechanical Properties of Medium Density Fibreboards
Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology. Georg-August-University, Germany. (Forest Products Group)ORCID iD: 0000-0003-0883-2306
Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology. (Forest Products Group)ORCID iD: 0000-0002-6909-2025
Georg-August-University, Gemany.
Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology.
2017 (English)In: 28th International Conference on Wood Science and Technology (ICWST), Zagreb, Croatia, 7-8 December, 2017 / [ed] Ivica Zupcic; Vjekoslav Zivkovic; Josip Miklecic, University of Zagreb, Faculty of Forestry , 2017, p. 153-158Conference paper, Published paper (Refereed)
Abstract [en]

Dimensional stability of wood-based panels is generally improved with application of suitable additives. Most of these additives, such as paraffin wax, are petroleum-based and with relatively high cost, and therefore, it is desirable to develop low-cost and effective substitutes from renewable resources. This work studied the potential of using a renewable water-repellent additive, such as tall oil fatty acid, for lab-scale manufacturing of medium density fibreboards (MDF). Tall oil fatty acid (TOFA) was used at 1 and 3% w/w of urea formaldehyde (UF) resin. MDF panels with similar concentrations of paraffin wax (wax) and panels without adding a water-repellent agent were served as controls. It was assessed the dimensional stability of the panels in terms of thickness swelling and water uptake after 4 and 24h immersion in water, and their mechanical performance in terms of modulus of elasticity, modulus of rupture and internal bonding. Results showed no obvious differences in the strength behaviour of the panels by addition of water-repellent agents. Dimensional stability, however, considerably improved by addition of TOFA, but it was still inferior when compared to that provided by wax.   

Place, publisher, year, edition, pages
University of Zagreb, Faculty of Forestry , 2017. p. 153-158
National Category
Wood Science
Research subject
Technology (byts ev till Engineering), Forestry and Wood Technology
Identifiers
URN: urn:nbn:se:lnu:diva-69168ISBN: 978-953-292-053-6 (print)OAI: oai:DiVA.org:lnu-69168DiVA, id: diva2:1164370
Conference
28th International Conference on Wood Science and Technology, Zagreb, Croatia, 7-8 December, 2017
Funder
The Crafoord Foundation, 20160533VINNOVA, 2015-04825
Note

Ej belagd 180212

Available from: 2017-12-11 Created: 2017-12-11 Last updated: 2018-03-14Bibliographically approved

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