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Properties of medium-density fibreboards bonded with dextrin-based wood adhesive
Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology. (Group of Forest Products (GoFP))ORCID iD: 0000-0003-0883-2306
Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology. (Group of Forest Products (GoFP))ORCID iD: 0000-0002-6909-2025
Georg-August-University Göttingen, Germany.
Shahid Rajaee Teacher Training University, Iran.
2019 (English)In: Wood research, ISSN 1336-4561, Vol. 64, no 2, p. 185-194Article in journal (Refereed) Published
Abstract [en]

This study focuses on manufacturing of medium density fibreboard (MDF) panels bonded with dextrin-based wood adhesive and crosslinked in situ with various weight ratios of synthetic (e.g., polymeric-methane diphenyl-diisocyanate, pMDI) or bio-based (e.g., glyoxal) crosslinkers. The physical and mechanical properties of the panels were evaluated and compared with those from panels without crosslinker (control). Modulus of rupture (MOR) and internal bond (IB) strength of the MDF panels were considerably increased by increasing the crosslinkers’ content. While, slight improvements were observed in modulus of elasticity (MOE) of the panels as a function of crosslinker type and content. Addition of crosslinkers clearly reduced the thickness swelling (TS) and water absorption (WA) of the panels, whereas, the panels with pMDI showed superior performances than the control and glyoxal added ones within 4 h and 24 h immersion in water. The results indicate the potential of dextrin as wood panel adhesive along with the use of appropriate crosslinkers.

Place, publisher, year, edition, pages
SDVÚ , 2019. Vol. 64, no 2, p. 185-194
Keywords [en]
Crosslinker, dextrin adhesive, glyoxal, mechanical properties, pMDI, thickness swelling
National Category
Composite Science and Engineering Wood Science Polymer Technologies
Research subject
Technology (byts ev till Engineering), Forestry and Wood Technology
Identifiers
URN: urn:nbn:se:lnu:diva-82474ISI: 000467016100001OAI: oai:DiVA.org:lnu-82474DiVA, id: diva2:1314360
Funder
Vinnova, 2015-04825The Kamprad Family Foundation, 20160052Available from: 2019-05-08 Created: 2019-05-08 Last updated: 2019-05-28Bibliographically approved

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Hosseinpourpia, RezaAdamopoulos, Stergios

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