Effect of Laser Irradiation on the Surface Wettability of Poplar Wood
A thermal modification for wood surfaces by using CO2 laser beam was proposed in this study. The contact angle for distilled water was measured and recorded for evaluating the wettability of modified and unmodified poplar (Populus L.) wood surfaces. Response surface methodology (RSM) was chosen for design of experiment and analyzing the effects of input laser processing parameters on contact angle variation of poplar wood surface. The quadratic models were established to describe the relationship between contact angle and modification parameters. Results showed that the laser power had significant influence on contact angle for distilled water. The initial contact angle decreased with the increase of feed speed and sweep width when the laser power was at the low level in this research. But it increased with the increase of feed speed and sweep width when the laser power was at the high level. The combination of different parameters determined the total amount of heat exchange at unit time. Compared to untreated wood surfaces, the mean values of initial and equilibrium contact angle were improved 6.4%–39.0% and 67.1%–100.7%, respectively. The detailed values of R 2 of quadratic models were very close to 1, which meant that the model achieved a high degree of fit and reasonably a satisfying predictive ability for the contact angle.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
Document Type: Research Article
Publication date: April 1, 2019
More about this publication?
- Science of Advanced Materials (SAM) is an interdisciplinary peer-reviewed journal consolidating research activities in all aspects of advanced materials in the fields of science, engineering and medicine into a single and unique reference source. SAM provides the means for materials scientists, chemists, physicists, biologists, engineers, ceramicists, metallurgists, theoreticians and technocrats to publish original research articles as reviews with author's photo and short biography, full research articles and communications of important new scientific and technological findings, encompassing the fundamental and applied research in all latest aspects of advanced materials.
- Editorial Board
- Information for Authors
- Subscribe to this Title
- Ingenta Connect is not responsible for the content or availability of external websites