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Properties of medium-density fibreboards bonded with dextrin-based wood adhesive
Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för skog och träteknik (SOT). (Group of Forest Products (GoFP))ORCID-id: 0000-0003-0883-2306
Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för skog och träteknik (SOT). (Group of Forest Products (GoFP))ORCID-id: 0000-0002-6909-2025
Georg-August-University Göttingen, Germany.
Shahid Rajaee Teacher Training University, Iran.
2019 (engelsk)Inngår i: Wood research, ISSN 1336-4561, Vol. 64, nr 2, s. 185-194Artikkel i tidsskrift (Fagfellevurdert) 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.

sted, utgiver, år, opplag, sider
SDVÚ , 2019. Vol. 64, nr 2, s. 185-194
Emneord [en]
Crosslinker, dextrin adhesive, glyoxal, mechanical properties, pMDI, thickness swelling
HSV kategori
Forskningsprogram
Teknik, Skog och träteknik
Identifikatorer
URN: urn:nbn:se:lnu:diva-82474ISI: 000467016100001OAI: oai:DiVA.org:lnu-82474DiVA, id: diva2:1314360
Forskningsfinansiär
Vinnova, 2015-04825The Kamprad Family Foundation, 20160052Tilgjengelig fra: 2019-05-08 Laget: 2019-05-08 Sist oppdatert: 2019-05-28bibliografisk kontrollert

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