Photoresistance of heat treated wood in interior use (CROSBI ID 542731)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Miklečić, Josip ; Jirouš-Rajković, Vlatka ; Čmarec, Siniša
engleski
Photoresistance of heat treated wood in interior use
Wood is photochemical unstable substrate witch change colour even in interior use because of photooxidation of lignin. In this study, an attempt was made to analyze surface discolouration of heat treated wood when exposed to UV radiation filtered through window glass. The colour change was measured using a spectrophotometer on heat treated samples of beech and ash which were uncoated and coated with three different varnishes. The samples were exposed 32 days using QUV tester equipped with UVA-351 lamps. The experiment shows that the trend of discolouration could be observed on the all samples tested according to the overall changes in colour (DE*) after 32 days of exposure. The greatest discolouration, according to DE* values were recorded for uncoated samples and samples coated with UV-cure water borne varnish. The 2k PU varnish had reduced discolouration of wood, and adding the UV-absorber to this varnish did not improve its colour stability.
heat treated wood; QUV exposure; clear varnishes; photostabilisation
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
Podaci o prilogu
137-143.
2008.
objavljeno
Podaci o matičnoj publikaciji
WOOD IS GOOD - PROPERTIES, TECHNOLOGY, VALORISATION, APPLICATION
Grbac, Ivica
Zagreb: Šumarski fakultet Sveučilišta u Zagrebu
953292004-8
Podaci o skupu
WOOD IS GOOD - PROPERTIES, TECHNOLOGY, VALORISATION, APPLICATION
poster
17.10.2008-17.10.2008
Zagreb, Hrvatska