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Pregled bibliografske jedinice broj: 651093

Characterization of wood surface degradation using activation spectra approach


Živković, Vjekoslav; Arnold, Martin; Richter, Klaus; Turkulin, Hrvoje
Characterization of wood surface degradation using activation spectra approach // Characterization of modified wood in relation to wood bonding and coating performance / Medved, Sergej ; Kutnar, Andreja (ur.).
Ljubljana: University of Ljubljana and University of Primorska, 2013. str. 268-278 (poster, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)


CROSBI ID: 651093 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Characterization of wood surface degradation using activation spectra approach

Autori
Živković, Vjekoslav ; Arnold, Martin ; Richter, Klaus ; Turkulin, Hrvoje

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

Izvornik
Characterization of modified wood in relation to wood bonding and coating performance / Medved, Sergej ; Kutnar, Andreja - Ljubljana : University of Ljubljana and University of Primorska, 2013, 268-278

ISBN
978-961-6144-37-7

Skup
COST FP0904 & FP1006 International workshop: Characterization of modified wood in relation to wood bonding and coating performance

Mjesto i datum
Rogla, Slovenija, 16-18.10.2013

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
wood; photodegradation; spectral sensitivity; activation spectra

Sažetak
To attain and emphasize natural aesthetic advantages of both native and modified wood, its surface should be protected with transparent or semi transparent finishing systems whose durability should be improved. Particularly the identification of wavelengths of ultraviolet and visible light during weathering that cause the changes in colour and micromechanical properties of wood, was chosen to be the principal interest in this research. Batches of thin strips of fir wood, assembled in packs of matching three strips (thus forming a 240 m thick surface layer), were exposed to irradiation behind a set of cut-on glass filters that transmitted selected regions of the UV and visible spectrum. Disassembling the pack of three strips after withdrawals from exposure enabled monitoring of the relevant changes in each particular strip i.e. in the depth of the wood surface during weathering. Depth profiles of colour and microtensile changes develop in time and are specific to observed properties. Relatively narrow waveband of most active wavelengths is causing greatest proportion of all recorded damages (360 – 435 nm). However, visible light of wavelengths up to 510 nm was shown to contribute significantly to surface damaging. Efficient protection of wood from light would demand screening not only UV light, but also some violet and blue light wavebands. The light protection must be efficient over prolonged periods of time in order to secure long-lasting stability of wood surface.

Izvorni jezik
Engleski

Znanstvena područja
Drvna tehnologija



POVEZANOST RADA


Projekti:
068-0682109-2096 - Oplemenjivanje i modifikacija površine drva (Jirouš-Rajković, Vlatka, MZOS ) ( POIROT)

Ustanove:
Šumarski fakultet, Zagreb

Profili:

Avatar Url Vjekoslav Živković (autor)

Avatar Url Hrvoje Turkulin (autor)

Citiraj ovu publikaciju

Živković, Vjekoslav; Arnold, Martin; Richter, Klaus; Turkulin, Hrvoje
Characterization of wood surface degradation using activation spectra approach // Characterization of modified wood in relation to wood bonding and coating performance / Medved, Sergej ; Kutnar, Andreja (ur.).
Ljubljana: University of Ljubljana and University of Primorska, 2013. str. 268-278 (poster, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
Živković, V., Arnold, M., Richter, K. & Turkulin, H. (2013) Characterization of wood surface degradation using activation spectra approach. U: Medved, S. & Kutnar, A. (ur.)Characterization of modified wood in relation to wood bonding and coating performance.
@article{article, year = {2013}, pages = {268-278}, keywords = {wood, photodegradation, spectral sensitivity, activation spectra}, isbn = {978-961-6144-37-7}, title = {Characterization of wood surface degradation using activation spectra approach}, keyword = {wood, photodegradation, spectral sensitivity, activation spectra}, publisher = {University of Ljubljana and University of Primorska}, publisherplace = {Rogla, Slovenija} }




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