Bormashenko E, Whyman G, Multanen V, Shulzinger E, Chaniel G. Physical mechanisms of interaction of cold plasma with polymer surfaces.
J Colloid Interface Sci 2015;
448:175-9. [PMID:
25733393 DOI:
10.1016/j.jcis.2015.02.025]
[Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Revised: 02/08/2015] [Accepted: 02/08/2015] [Indexed: 11/26/2022]
Abstract
Physical mechanisms of the interaction of cold plasmas with organic surfaces are discussed. Trapping of plasma ions by the CH2 groups of polymer surfaces resulting in their electrical charging is treated. Polyethylene surfaces were exposed to the cold radiofrequency air plasma for different intervals of time. The change in the wettability of these surfaces was registered. The experimentally established characteristic time scales of the interaction of cold plasma with polymer surfaces are inversely proportional to the concentration of ions. The phenomenological kinetic model of the electrical charging of polymer surfaces by plasmas is introduced and analyzed.
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