Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Investigation of the Impact of Cold Plasma Treatment on the Chemical Composition and Wettability of Medical Grade Polyvinylchloride

Version 1 : Received: 22 November 2020 / Approved: 23 November 2020 / Online: 23 November 2020 (14:31:54 CET)

A peer-reviewed article of this Preprint also exists.

Bormashenko, E.; Legchenkova, I.; Navon-Venezia, S.; Frenkel, M.; Bormashenko, Y. Investigation of the Impact of Cold Plasma Treatment on the Chemical Composition and Wettability of Medical Grade Polyvinylchloride. Appl. Sci. 2021, 11, 300. Bormashenko, E.; Legchenkova, I.; Navon-Venezia, S.; Frenkel, M.; Bormashenko, Y. Investigation of the Impact of Cold Plasma Treatment on the Chemical Composition and Wettability of Medical Grade Polyvinylchloride. Appl. Sci. 2021, 11, 300.

Journal reference: Appl. Sci. 2020, 11, 300
DOI: 10.3390/app11010300

Abstract

Impact of the Corona, dielectric barrier discharge and low pressure radiofrequency air plasmas on the chemical composition and wettability of the medical grade polyvinylchloride was investigated. Corona plasma treatment exerted the most pronounced increase in the hydrophilization of polyvinylchloride. The specific energy of adhesion of the pristine and plasma treated PVC tubing is reported. The kinetics of hydrophobic recovery following the plasma treatment was explored. The time evolution of the apparent contact angle under the hydrophobic recovery is satisfactorily described by the exponential fitting. Energy-dispersive X-ray spectroscopy of the chemical composition of the near-surface layers of the plasma treated catheters revealed their oxidation. The effect of the hydrophobic recovery is hardly correlated with oxidation of the polymer surface, which is irreversible.

Subject Areas

cold plasma; polyvinylchloride; wettability; hydrophilization; apparent contact angle; contact angle hysteresis; hydrophobic recovery.

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