Sökning: id:"swepub:oai:DiVA.org:lnu-125638" >
Micro-Fibrillated C...
Micro-Fibrillated Cellulose in Lignin–Phenol–Formaldehyde Adhesives for Plywood Production
-
- Ahmed, Sheikh Ali, Senior Lecturer, 1977- (författare)
- Linnéuniversitetet,Institutionen för skog och träteknik (SOT),Forest Products
-
- Hosseinpourpia, Reza, 1983- (författare)
- Linnéuniversitetet,Institutionen för skog och träteknik (SOT),Michigan Technological University, USA,Forest Products
-
- Adamopoulos, Stergios (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för skogens biomaterial och teknologi (SBT),Department of Forest Biomaterials and Technology,Swedish University of Agricultural Sciences, Sweden
-
(creator_code:org_t)
-
- Switzerland : MDPI, 2023
- 2023
- Engelska.
-
Ingår i: Forests. - Switzerland : MDPI. - 1999-4907. ; 14:11
- Relaterad länk:
-
https://doi.org/10.3...
-
visa fler...
-
https://lnu.diva-por... (primary) (Raw object)
-
https://pub.epsilon.... (primary) (Raw object) (free)
-
https://urn.kb.se/re...
-
https://doi.org/10.3...
-
https://res.slu.se/i...
-
visa färre...
Abstract
Ämnesord
Stäng
- Petrochemical-based phenol–formaldehyde (PF) adhesives are widely used in plywood production. To substitute phenol in the synthesis of PF adhesives, lignin can be added due to its structural similarity to phenol. Moreover, micro-fibrillated cellulose (MFC) can further enhance the bond performance, mechanical properties, and toughness of adhesive systems. Thus, the aim of this study was to evaluate the adhesion performance of lignin–PF (LPF) adhesives reinforced with MFC. In LPF formulations, three levels of MFC (0, 15, and 30 wt% based on the total solid content of adhesives) were added to the homogenous adhesive mixture. Three-layer plywood panels from birch (Betula pendula Roth.) veneers were assembled after hot pressing at 130 °C under two pressing durations, e.g., 60 and 75 s/mm. Tensile shear strength was measured at dry (20 °C and 65% RH) and wet conditions (water soaked at room temperature for 24 h). The results indicated that the addition of lignin reduced the strength of LPF adhesives in both dry and wet conditions compared to the control PF adhesive. However, MFC reinforcement enhanced the shear strength properties of the plywood. Furthermore, a longer pressing time of 75 s/mm slightly increased the shear strength.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Kompositmaterial och -teknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Composite Science and Engineering (hsv//eng)
- LANTBRUKSVETENSKAPER -- Lantbruksvetenskap, skogsbruk och fiske -- Trävetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Agriculture, Forestry and Fisheries -- Wood Science (hsv//eng)
Nyckelord
- bio-based adhesives; tensile shear strength; viscosity; adhesive penetration; birch veneer
- Forestry and Wood Technology
- Skog och träteknik
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
-
Forests
(Sök värdpublikationen i LIBRIS)
Till lärosätets databas