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

L. Tolvaj, Zsolt Molnar, Endre Magoss

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)23-26
Number of pages4
JournalJournal of Photochemistry and Photobiology, B: Biology
Volume134
DOIs
Publication statusPublished - May 5 2014

Fingerprint

Photolysis
roughness
optics
shift
mercury lamps
Water
leaching
Mercury
water
Radiation
degradation
reflectance
Light
irradiation
radiation

Keywords

  • Baseline shift
  • Infrared spectrum
  • Photodegradation
  • Roughness
  • Wood

ASJC Scopus subject areas

  • Radiation
  • Radiology Nuclear Medicine and imaging
  • Radiological and Ultrasound Technology
  • Biophysics
  • Medicine(all)

Cite this

Measurement of photodegradation-caused roughness of wood using a new optical method. / Tolvaj, L.; Molnar, Zsolt; Magoss, Endre.

In: Journal of Photochemistry and Photobiology, B: Biology, Vol. 134, 05.05.2014, p. 23-26.

Research output: Contribution to journalArticle

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