Wen Jiang (Avtor), Stergios Adamopoulos (Avtor), Reza Hosseinpourpia (Avtor), Jure Žigon (Avtor), Marko Petrič (Avtor), Milan Šernek (Avtor), Sergej Medved (Avtor)

Povzetek

Bark as a sawmilling residue can be used for producing value-added chemicals and materials. This study investigated the use of partially liquefied bark (PLB) for producing particleboard with or without synthetic adhesives. Maritime pine (Pinus pinaster Ait.) bark was partially liquefied in the presence of ethylene glycol and sulfuric acid. Four types of particleboard panels were prepared with a PLB content of 4.7 %, 9.1 %, 20 %, and 33.3 %, respectively. Another five types of particleboard panels were manufactured by using similar amounts of PLB and 10 wt.% of melamine-urea-formaldehyde (MUF) adhesives. Characterization of bark and solid residues of PLB was performed by Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), and automated vapor sorption (AVS). Mechanical and physical properties of the particleboard were tested according to the European standards EN 310 for determining modulus of elasticity and bending strength, EN 317 for determining thickness swelling after immersion in water, and EN 319 for determining internal bond strength. The results showed that the increase in PLB content improved the mechanical strength for the non-MUF boards, and the MUF-bonded boards with up to 20 % of PLB met the requirements for interior uses in dry conditions according to EN 312. The non-MUF boards containing 33.3 % of PLB and the MUF-bonded boards showed comparable thickness swelling and water absorption levels compared to the reference board.

Ključne besede

skorja;lepljenje;delno utekočinjen les;MUF lepilo;absorpcija vode;debelinski nabrek;leseni ploščni kompoziti;bark;bonding;partial liquefaction;MUF adhesives;water vapor sorption;thickness swelling;wood-based panels;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UL BF - Biotehniška fakulteta
UDK: 630*8
COBISS: 24100355 Povezava se bo odprla v novem oknu
ISSN: 2076-3417
Št. ogledov: 164
Št. prenosov: 54
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarne ključne besede: skorja;lepljenje;delno utekočinjen les;MUF lepilo;absorpcija vode;debelinski nabrek;leseni ploščni kompoziti;
Vrsta dela (COBISS): Članek v reviji
Strani: str. 1-14
Letnik: ǂVol. ǂ10
Zvezek: ǂiss. ǂ15
Čas izdaje: 2020
DOI: 10.3390/app10155253
ID: 14229785