Hydrophobic Investigation of Excimer Laser Effects on Poly (Ethylene Terephthalate)
Journal Title: International Journal of Fundamental Physical Sciences - Year 2016, Vol 6, Issue 2
Abstract
The modification on the surface of the polyethylene terephthalate (PET) polymer as a result of ArF (193nm) laser irradiation was investigated. Fourier transform infrared spectroscopy (FTIR) and energy-dispersive X-ray (EDX) spectroscopy was employed for examination of the chemical composition of irradiated surface and conical structure. FTIR spectroscopy indicates that by irradiation of PET, hydrophobic groups of the polymer molecules in the polymer chain have more freedom of movement and prevents from the interaction between water molecules and the hydrophilic groups on the polymer surface, and PET surfaces after exposure have become more hydrophobic. While the PET is irradiated by more than 800 pulses, its surface becomes hydrophilic, so that the surface of PET after treated with 1500 pulses, even become more hydrophilic than that of untreated one.
Authors and Affiliations
S Behrouzinia, F Radaei, K Khorasani, M Shayganmanesh
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