1. TREATMENT OF THERMALLY MODIFIED WOOD WITH A SUSPENSION OF TITANIA NANOPARTICLES TO IMPROVE ITS SELECTED PROPERTIES.
- Author
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PETRIČ, Marko, BALZANO, Angela, HUMAR, Miha, KRIŽAN, Jernej, KRŽIŠNIK, Davor, PAVLIČ, Matjaž, and ŽIGON, Jure
- Subjects
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WOOD preservatives , *WOOD , *PROTECTIVE coatings , *CONTACT angle , *NANOPARTICLES , *BEECH - Abstract
Results of the research aimed to increase the resistance of beech and thermally modified (TM) beech wood to UV-light and weathering with impregnation with commercially available nano TiO2 suspensions, originally intended to be used as UV protective coating additives, are presented in this paper. Beech wood and TM beech wood samples were vacuum-pressure impregnated with suspensions, containing around 3% of TiO2, and in one series, the specimens were at first impregnated and thermally modified afterwards. In general, resistance to UV-light, as demonstrated by visual observation and by colour measurements was increased. Contact angle of water, liquid water absorption, and water vapour sorption also importantly influence on weathering behaviour of wood and it was shown that in general, impregnation with TiO2 particles has a positive influence with this respect. Anyway, some results of this preliminary research were ambiguous, and subsequent investigations of this novel protection method are needed and planned. [ABSTRACT FROM AUTHOR]
- Published
- 2019