A commercial formulation of poly(tetrafluoroethylene) (PTFE) sheets were surface modified by using non-thermal air at 40 kHz frequency (DC) and 13.56 MHz radiofrequency (RF) at different durations and powers. In order to assess possible changes of PTFE surface properties, zeta potential (ζ), isoelectric points (IEPs) determinations, contact angle measurements as well as Scanning Electron Microscopy (SEM) and Atomic Force Microscopy (AFM) imaging were carried out throughout the experimentation. The overall outcome indicated that ζ-potential and surface energy progressively changed after each treatment, the IEP shifting to lower pH values and the implicit differences, which are produced after each distinct treatment, giving new surface topographies and chemistry. The present approach might serve as a feasible and promising method to alter the surface properties of poly(tetrafluoroethylene).

Centre of Polymer Systems University Institute Tomas Bata University in Zlín Trida Tomase Bati 5678 76001 Zlín Czech Republic

École supérieure de Chimie Organique et Minérale ESCOM Allée du Réseau Jean Marie Buckmaster 60200 Compiègne France

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Desmet T., Morent R., De Geyter N., Leys C., Schacht E., Dubruel P. Nonthermal plasma technology as a versatile strategy for polymeric biomaterials surface modification: A review. Biomacromolecules. 2009;10:2351–2378. doi: 10.1021/bm900186s. PubMed DOI

Morent R., De Geyter N., Desmet T., Dubruel P., Leys C. Plasma Surface Modification of Biodegradable Polymers: A Review. Plasma Process Polym. 2011;8:171–190. doi: 10.1002/ppap.201000153. DOI

Puliyalil H., Recek N., Filipic G., Cekada M., Jerman I., Mozetic M., Thomas S., Cvelbar U. Mechanisms of hydrophobization of polymeric composites etched in CF4 plasma. Surf. Interface Anal. 2017;49:334–339. doi: 10.1002/sia.6104. DOI

Gotoh K., Shohbuke E., Ryu G. Application of atmospheric pressure plasma polymerization for soil guard finishing of textiles. Text. Res. J. 2018;88:1278–1289. doi: 10.1177/0040517517698988. DOI

Vesel A., Mozetic M. New developments in surface functionalization of polymers using controlled plasma treatments. J. Phys. D Appl. Phys. 2017;50:293001. doi: 10.1088/1361-6463/aa748a. DOI

Khedkar J., Negulescu I., Meletis E.I. Sliding wear behavior of PTFE composites. Wear. 2002;252:361–369. doi: 10.1016/S0043-1648(01)00859-6. DOI

Pricea D.M., Jarratt M. Thermal conductivity of PTFE and PTFE composites. Thermochim. Acta. 2002;392:231–236. doi: 10.1016/S0040-6031(02)00105-3. DOI

Buerkle M., Asai Y. Thermal conductance of Teflon and Polyethylene: Insight from an atomistic, single-molecule level. Sci. Rep. 2017;7:41898. doi: 10.1038/srep41898. PubMed DOI PMC

Suh J., Bae D. Mechanical properties of poly(tetrafluoroethylene) composites reinforced with graphene nanoplatelets by solid-state processing. Compos. Part. 2016;95:317–323. doi: 10.1016/j.compositesb.2016.03.082. DOI

Morent R., De Geyter N., Verschuren J., De Clerck K., Kiekens P., Leys C. Non-thermal plasma treatment of textiles. Surf. Coat. Technol. 2008;202:3427–3449. doi: 10.1016/j.surfcoat.2007.12.027. DOI

Svorcik V., Reznickova A., Kolska Z., Slepicka P., Hnatowicz V. Variable surface properties of PTFE foils. e-Polymers. 2010;133:1–6.

Preocanin T., Selmani A., Lindqvist-Reis P., Heberling F., Kallaya N., Lutzenkirchen J. Surface charge at Teflon/aqueous solution of potassium chloride interfaces. Colloids Surf. A. 2012;412:120–128. doi: 10.1016/j.colsurfa.2012.07.025. DOI

Zanini S., Barni R., Della Pergola R., Riccardi C. Modification of the PTFE wettability by oxygen plasma treatments: Influence of the operating parameters and investigation of the ageing behavior. J. Phys. D Appl. Phys. 2014;47:325202. doi: 10.1088/0022-3727/47/32/325202. DOI

Kang D.H., Kang H.W. Surface energy characteristics of zeolite embedded PVDF nanofiber films with electrospinning process. Appl. Surf. Sci. 2016;387:82–88. doi: 10.1016/j.apsusc.2016.06.096. DOI

Jia J., Kang G., Zou T., Li M., Zhou M., Cao Y. Sintering process investigation during polytetrafluoroethylene hollow fibre membrane fabrication by extrusion method. High Perform. Polym. 2017;29:1069–1082. doi: 10.1177/0954008316669409. DOI

Jurczuk K., Galeski A., Morawiec J. Effect of poly(tetrafluoroethylene) nanofibers on foaming behavior of linear and branched polypropylenes. Eur. Polym. J. 2017;88:171–182. doi: 10.1016/j.eurpolymj.2017.01.024. DOI

Kang D.H., Kang H.W. Advanced electrospinning using circle electrodes for freestanding PVDF nanofiber film fabrication. Appl. Surf. Sci. 2018;455:251–257. doi: 10.1016/j.apsusc.2018.05.211. DOI

Lopez-Garcia J. Wettability analysis and water absorption studies of plasma active polymeric materials. In: Thomas S., Mozetic M., Cvelbar U., Spatenka P., Praveen K.M., editors. Non-Thermal Plasma Technology for Polymeric Materials: Applications in Composites, Nanostructured Materials and Bio-Medical Fields. 1st ed. Elsevier; Amsterdam, The Netherlands: Oct 11, 2018. Chapter 9.

Bursikova V., Stahel P., Navratil Z., Bursik J., Janca J. Surface Energy Evaluation of Plasma Treated Materials by Contact Angle Measurement. 1st ed. Masaryk University; Brno, Czech Republic: Jan 1, 2004. pp. 1–70.

Garcia J.L., Asadinezhad A., Pachernik J., Lehocky M., Junkar I., Humpolicek P., Saha P., Valasek P. Cell proliferation of HaCaT keratinocytes on collagen films modified by argon plasma treatment. Molecules. 2010;15:2845–2856. doi: 10.3390/molecules15042845. PubMed DOI PMC

Garcia J.L., Pachernik J., Lehocky M., Junkar I., Humpolicek P., Saha P. Enhanced keratinocyte cell attachment to atelocollagen thin films through air and nitrogen plasma treatment. Prog. Colloid Polym. Sci. 2011;138:89–94. doi: 10.1007/978-3-642-19038-4_16. DOI

Recek N., Resnik M., Motaln H., Lah-Turnsek T., Augustine R., Kalarikkal N., Thomas S., Mozetic M. Cell Adhesion on Polycaprolactone Modified by Plasma Treatment. Int. J. Polym. Sci. 2016;1:1–9. doi: 10.1155/2016/7354396. DOI

Vesel A. Modification of polystyrene with a highly reactive cold oxygen plasma. Surf. Coat. Technol. 2010;205:490–497. doi: 10.1016/j.surfcoat.2010.07.016. DOI

Vesel A., Mozetic M. Surface modification and ageing of PMMA polymer by oxygen plasma treatment. Vacuum. 2012;86:634–637. doi: 10.1016/j.vacuum.2011.07.005. DOI

Ozaltin K., Lehocky M., Humpolicek P., Pelkova J., Saha P. A new route of fucoidan immobilization on low density polyethylene and its blood compatibility and anticoagulation activity. Int. J. Mol. Sci. 2016;17:908. doi: 10.3390/ijms17060908. PubMed DOI PMC

Asadinezhad A., Lehocky M., Saha P., Mozetic M. Recent Progress in Surface Modification of Polyvinyl Chloride. Materials. 2012;5:2937–2959. doi: 10.3390/ma5122937. DOI

Vesel A., Zaplotnik R., Modic M., Mozetic M. Hemocompatibility properties of a polymer surface treated in plasma containing sulfur. Surf. Interface Anal. 2016;48:601–605. doi: 10.1002/sia.5965. DOI

Stoleru E., Zaharescu T., Hitruc E.G., Vesel A., Ioanid E.G., Coroaba A., Safrany A., Pricope G., Lungu M., Schick C., et al. Lactoferrin-immobilized surfaces onto functionalized PLA assisted by the gamma-rays and nitrogen plasma to create materials with multifunctional properties. ACS Appl. Mater. Interfaces. 2016;46:31902–31915. doi: 10.1021/acsami.6b09069. PubMed DOI

Lopez-Garcia J., Primc G., Junkar I., Lehocky M., Mozetic M. On the hydrophilicity and water resistance effect of styrene-acrylonitrile copolymer treated by CF4 and O2 plasmas. Plasma Process. Polym. 2015;12:1075–1084. doi: 10.1002/ppap.201400216. DOI

Lopez-Garcia J., Lehocky M., Humpolicek P., Novak I. On the correlation of surface charge and energy in non-thermal plasma-treated polyethylene. Surf. Interface Anal. 2014;46:625–629. doi: 10.1002/sia.5627. DOI

Kolska Z., Makajova Z., Kolarova K., Kasalkova N., Trostova S., Reznickova A., Siegel J., Svorcik V. In: Electrokinetic Potential and Other Surface Properties of Polymer Foils and Their Modifications. 1st ed. Yilmaz F., editor. IntechOpen; London, UK: Jan 23, 2013. Chapter 8. DOI

Lopez-Garcia J., Bilek F., Lehocky M., Junkar I., Mozetic M., Sowe M. Enhanced printability of polyethylene through air plasma treatment. Vacuum. 2013;95:43–49. doi: 10.1016/j.vacuum.2013.02.008. DOI

Mozetic M., Ostrikov K., Ruzic D.N., Curreli D., Cvelbar U., Vesel A., Primc G., Leisch M., Jousten K., Malyshev O.B., et al. Recent advances in vacuum sciences and applications. J. Phys. D Appl. Phys. 2014;47:153001. doi: 10.1088/0022-3727/47/15/153001. DOI

Zein-Based Films Containing Monolaurin/Eugenol or Essential Oils with Potential for Bioactive Packaging Application

Degradable Poly(ethylene oxide)-Like Plasma Polymer Films Used for the Controlled Release of Nisin