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Surface Wettability Modification of Cyclic Olefin Polymer by Direct Femtosecond Laser Irradiation.

ABSTRACT: The effect of laser irradiation on surface wettability of cyclic olefin polymer (COP) was investigated. Under different laser parameters, a superhydrophilic or a superhydrophobic COP surface with a water contact angle (WCA) of almost 0° or 163°, respectively, could be achieved by direct femtosecond laser irradiation. The laser power deposition rate (PDR) was found to be a key factor on the wettability of the laser-treated COP surface. The surface roughness and surface chemistry of the laser-irradiated samples were characterized by surface profilometer and X-ray photoelectron spectroscopy, respectively; they were found to be responsible for the changes of the laser-induced surface wettability. The mechanisms involved in the laser surface wettability modification process were discussed.

SUBMITTER: Wang B

PROVIDER: S-EPMC5304633 | biostudies-literature | 2015 Aug

REPOSITORIES: biostudies-literature

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Surface Wettability Modification of Cyclic Olefin Polymer by Direct Femtosecond Laser Irradiation.

Wang Bing B Wang Xincai X Zheng Hongyu H Lam Yee Cheong YC

Nanomaterials (Basel, Switzerland) 20150828 3

The effect of laser irradiation on surface wettability of cyclic olefin polymer (COP) was investigated. Under different laser parameters, a superhydrophilic or a superhydrophobic COP surface with a water contact angle (WCA) of almost 0° or 163°, respectively, could be achieved by direct femtosecond laser irradiation. The laser power deposition rate (PDR) was found to be a key factor on the wettability of the laser-treated COP surface. The surface roughness and surface chemistry of the laser-irra ...[more]

PMID: 28347074

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