Low-pressure plasma treated polycarbonate and polymethyl methacrylate (PMMA) sheets with different surface patterns to change their surface properties

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dc.authorid0000-0003-0120-530Xen_US
dc.authorscopusid6602001525en_US
dc.authorwosidDVD-0927-2022en_US
dc.contributor.authorGizer, S. Görkem
dc.contributor.authorBhethanabotla, Venkat R.
dc.contributor.authorAyyala, Ramesh S.
dc.contributor.authorŞahiner, Nurettin
dc.date.accessioned2024-01-24T08:25:24Z
dc.date.available2024-01-24T08:25:24Z
dc.date.issued2023en_US
dc.departmentFakülteler, Fen Fakültesi, Kimya Bölümü
dc.description.abstractLow-pressure plasmas of carbon tetrafluoride (CF4), oxygen (O2), and air were used to treat the surfaces of polycarbonate (PC) and polymethyl methacrylate (PMMA) to achieve a variety of surface attributes, such as hydrophilicity, hydrophobicity, and surface free energy. Patterns of straight line, triangular and square shapes with different sizes e.g., 0.5 mm, 0.75 mm, and 1 mm dimensions as templates were constructed from stainless-steel sheets with a thickness of 1 mm, via laser cutter, were used to induce the corresponding shape of the functionality on PC and PMMA surfaces during plasma gas treatment were also investigated. The untreated PC and PMMA surfaces have a contact angle (θ) value of 70°±0.47° and 77°±0.80°, respectively. As expected upon CF4 plasma treatment, their contact angle values were increased to 109.04°±0.35° and 105.76°±0.61°, respectively; whereas the air plasma treated surfaces became more hydrophilic with the contact angle values of 29.34°±0.14° and 43.99°±0.22°, correspondingly. Moreover, O2 plasma treated surfaces became more hydrophilic with the contact angle values of 25.32°±0.77° for PC and 39.94°±2.05° for PMMA. Also, surface free energy (SFE) values were decreased to 11±0.87 mN/m from 41.16±0.42 mN/m for PC and to 12.11±1.53 mN/m from 35.93±1.12 mN/m for PMMA upon CF4 treated surfaces. Furthermore, SFE values were increased to 57.59±1.12 and 62.13±1.15 mN/m for PC and PMMA after air plasma treatment. PC surface's, advancing and receding contact angles were determined as 101.48°±0.33° and 65.60°±0.11° respectively for 34.77°±0.50° slide-off angles. Moreover, the advancing and receding contact angles for PMMA were found as 93°±0.64° and 61.60°±1.19°, respectively with a sliding angle of 24.49°±1.14°. X-ray Photoelectron Spectroscopy (XPS) analysis results confirmed the fluorination and oxidation of both PC and PMMA after CF4 and O2 plasma treatments, individually. PC and PMMA surfaces were treated multiple times with CF4 and Air, Air and CF4, O2 and CF4, and CF4 and O2 plasmas in succession. After multiple treatment, PC and PMMA surfaces contact angle values were decreased as low as 10.62°±0.88° and 14.96°±0.2°, respectively.en_US
dc.identifier.citationGizer, S. G., Bhethanabotla, V. R., Ayyala, R. S., & Şahiner, N. (2023). Low-pressure plasma treated polycarbonate and polymethyl methacrylate (PMMA) sheets with different surface patterns to change their surface properties. Surfaces and Interfaces, 37, 102646. https://doi.org/10.1016/j.surfin.2023.102646en_US
dc.identifier.doi10.1016/j.surfin.2023.102646
dc.identifier.issn2468-0230
dc.identifier.scopus2-s2.0-85147209884
dc.identifier.urihttps://doi.org/10.1016/j.surfin.2023.102646
dc.identifier.urihttps://hdl.handle.net/20.500.12428/5375
dc.identifier.volume37en_US
dc.identifier.wosWOS:000927434700001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthorŞahiner, Nurettin
dc.language.isoen
dc.publisherElsevier B.V.en_US
dc.relation.ispartofSurfaces and Interfacesen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectCold plasmaen_US
dc.subjectHydrophilic/hydrophobic surfacesen_US
dc.subjectPolycarbonateen_US
dc.subjectPolymethylmethacrylateen_US
dc.subjectSurface modificationen_US
dc.titleLow-pressure plasma treated polycarbonate and polymethyl methacrylate (PMMA) sheets with different surface patterns to change their surface properties
dc.typeArticle

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