Wettability characteristics of polyethylene (PE) modified with CO2, Nd:YAG, excimer and high power diode lasers

Lawrence, Jonathan and Li, Lin (2001) Wettability characteristics of polyethylene (PE) modified with CO2, Nd:YAG, excimer and high power diode lasers. Proceedings of the Institution of Mechanical Engineers Part B: Journal of Engineering Manufacture, 215 (12). pp. 1735-1744. ISSN 0954-4054

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Abstract

Interaction of CO2, Nd:YAG, excimer and high power diode laser (HPDL) radiation with the surface of the bio-material, polyethylene (PE), was found to effect varying degrees of change to the wettability characteristics of the material depending upon the laser used. It was observed that interaction with CO2, Nd:YAG and HPDL effected very little change to wettability characteristics of the PE. In contrast, interaction of the PE with excimer laser radiation resulted an increase in a marked improvement in the wettability characteristics. After excimer laser treatment the surface O2 content was found to have increased and the material was seen to be more polar in nature, resulting in a significant increase in the wettability characteristics. The work has shown that the wettability characteristics of the PE could be controlled and/or modified with laser surface treatment. However, a wavelength dependence of the change of the wetting properties could not be deduced from the findings of this work.

Item Type:Article
Additional Information:Interaction of CO2, Nd:YAG, excimer and high power diode laser (HPDL) radiation with the surface of the bio-material, polyethylene (PE), was found to effect varying degrees of change to the wettability characteristics of the material depending upon the laser used. It was observed that interaction with CO2, Nd:YAG and HPDL effected very little change to wettability characteristics of the PE. In contrast, interaction of the PE with excimer laser radiation resulted an increase in a marked improvement in the wettability characteristics. After excimer laser treatment the surface O2 content was found to have increased and the material was seen to be more polar in nature, resulting in a significant increase in the wettability characteristics. The work has shown that the wettability characteristics of the PE could be controlled and/or modified with laser surface treatment. However, a wavelength dependence of the change of the wetting properties could not be deduced from the findings of this work.
Keywords:CO2 laser, Nd:YAG laser, excimer laser, high power diode laser (HPDL), polyethylene (PE), surface energy, wettability
Subjects:H Engineering > H680 Optoelectronic Engineering
H Engineering > H700 Production and Manufacturing Engineering
Divisions:College of Science > School of Engineering
ID Code:3240
Deposited By:INVALID USER
Deposited On:20 Aug 2010 10:08
Last Modified:13 Mar 2013 08:45

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