Physical mechanisms of interaction of cold plasma with polymer surfaces.
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.
Ariel University, Physics Faculty, P.O.B. 3, 40700 Ariel, Israel; Ariel University, Chemical Engineering and Biotechnology Faculty, P.O.B. 3, 40700 Ariel, Israel. Electronic address: edward@ariel.ac.il.
Edward
E
Bormashenko
Ariel University, Physics Faculty, P.O.B. 3, 40700 Ariel, Israel.
Gene
G
Whyman
Ariel University, Chemical Engineering and Biotechnology Faculty, P.O.B. 3, 40700 Ariel, Israel.
Victor
V
Multanen
Ariel University, Physics Faculty, P.O.B. 3, 40700 Ariel, Israel.
Evgeny
E
Shulzinger
Ariel University, Physics Faculty, P.O.B. 3, 40700 Ariel, Israel; Bar Ilan University, Physics Faculty, 52900 Ramat Gan, Israel.
Gilad
G
Chaniel
Characteristic time of ion trapping; Cold plasma; Ion trapping; Kinetics of charging; Polymer surface; Wettability