Arnaud Maxime Cheumani-Yona (Avtor), Franc Budija (Avtor), David Hrastnik (Avtor), Matjaž Pavlič (Avtor), Pavel Pori (Avtor), Črtomir Tavzes (Avtor), Marko Petrič (Avtor)

Povzetek

Liquefied wood-based polyurethane wood coatings of an aesthetically acceptable light colour were prepared and characterised. Liquefied black poplar wood was obtained by solvolysis in a polyethylene glycol/glycerol mixture, and it was bleached with hydrogen peroxide. The bleaching treatment converted liquefied wood from a dark brown to a yellowish product. Polyurethane films were prepared by the curing of liquefied wood with polymeric diphenylmethane diisocyanate or trimethylolpropane toluene diisocyanate prepolymer (TMP/TDI) isocyanate-type hardeners. It was found that the selected properties of the films prepared from the bleached liquefied wood were, in general, equivalent to those prepared from unbleached liquefied wood. The mechanical properties of the films obtained with the TMP/TDI curing agent were acceptable for wood coating applications. The initial poor resistance of the films to water and ethanol was substantially improved by the addition of n-octyltriethoxysilane to the liquefied wood prior to the preparation of the polyurethane coatings; the hardness of the films also increased.

Ključne besede

utekočinjen les;poliuretanski premaz;les;beljenje;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UL BF - Biotehniška fakulteta
UDK: 630*8
COBISS: 2375049 Povezava se bo odprla v novem oknu
ISSN: 1930-2126
Št. ogledov: 958
Št. prenosov: 349
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: Neznan jezik
Vrsta dela (COBISS): Delo ni kategorizirano
Strani: str. 3347-3363
Letnik: ǂVol. ǂ10
Zvezek: ǂiss. ǂ2
Čas izdaje: 2015
ID: 9142124