Measurement of photodegradation-caused roughness of wood using a new optical method

Measurement of photodegradation-caused roughness of wood using a new optical method

The aim of this study was to clarify the intensity of the surface roughening of wood caused by light radiation using a fast optical method. The samples were irradiated by mercury lamp and the roughness change was monitored traditionally using a perthometer. The infrared (IR) diffuse reflectance spec...

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Veröffentlicht in:Journal of photochemistry and photobiology. B, Biology Biology, 2014-05, Vol.134, p.23-26
Hauptverfasser: Tolvaj, Laszlo, Molnar, Zsolt, Magoss, Endre
Format: Artikel
Sprache:eng
Schlagworte:
Light
Photolysis
Spectrophotometry, Infrared
Wood - chemistry
Wood - metabolism
Wood - radiation effects
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container_title Journal of photochemistry and photobiology. B, Biology
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creator Tolvaj, Laszlo
Molnar, Zsolt
Magoss, Endre
description The aim of this study was to clarify the intensity of the surface roughening of wood caused by light radiation using a fast optical method. The samples were irradiated by mercury lamp and the roughness change was monitored traditionally using a perthometer. The infrared (IR) diffuse reflectance spectrum was measured and the baseline shift was found to be a proper parameter to monitor the roughening effect of photodegradation. Linear correlation was found between the traditionally measured roughness and the baseline shift. This newly developed optical method is able to detect the degradation difference between earlywood and latewood. Some of the samples were immersed in distilled water for a day after an all light irradiation period of two days. This new baseline shift method was able to visualise and determine the small change in roughness caused by the leaching effect of water.
doi_str_mv 10.1016/j.jphotobiol.2014.03.020
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subjects Light
Photolysis
Spectrophotometry, Infrared
Wood - chemistry
Wood - metabolism
Wood - radiation effects
title Measurement of photodegradation-caused roughness of wood using a new optical method
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