Naslov
Hydrophobic, light stabilizing improvement of wood surface durability

Autori
Turkulin, Hrvoje ; Arnold, Martin ; Richter, Klaus ; Jirouš-Rajković, Vlatka ; Mihulja, Goran

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), ostalo

Izvornik
Verhandlungsberichte des Symposiums Holz Innovativ 2007 / - Rosenheim : Bayern Innovativ, 2007

Skup
Holz Innovativ 2007

Mjesto i datum
Rosenheim, Njemačka, 18.04.2007. - 19.04.2007

Vrsta sudjelovanja
Pozvano predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
hydrophobisation; light stabilisation; wood surface; durability;

Sažetak
Several surface treatments for transparent protection of exterior wood have been tested in natural and artificial weathering by measurements of contact angle, liquid water and vapour absorption, colour change and mechanical properties ("thin strip" method). Pine and spruce wood was impregnated with HALS-containing primer and subsequently treated with UV-modified, nano-scaled hydrophobic emulsion, or by application of several transparent coatings. Hydrophobic properties ("pearling effect" and high contact angles) did not correlate well with water absorption, and the weathering resistance depended on the amount of UV additives and film thickness. Providing that sufficient depth of primer penetration and resistance to vapour transport are assured, transparent coating systems containing HALS, UV absorber and nano-based water repellent offer very promising enhancement of exterior wood service life.

Izvorni jezik
Engleski

Znanstvena područja
Šumarstvo

POVEZANOST RADA