ISSN 1070-4272, Russian Journal of Applied Chemistry, 2006, Vol. 79, No. 11, pp. 1857!1861. + Pleiades Publishing, Inc., 2006.
Original Russian Text + O.B. Kucherenko, C. Kohlert, E.A. Sosnov, A.A. Malygin, 2006, published in Zhurnal Prikladnoi Khimii, 2006, Vol. 79, No. 11,
AND POLYMERIC MATERIALS
Influence of the Physicochemical Treatment Procedure
on the Morphology and Properties of the Polyvinyl Chloride
O. B. Kucherenko, C. Kohlert, E. A. Sosnov, and A. A. Malygin
St. Petersburg State Technological Institute (Technical University), St. Petersburg, Russia
Kloeckner Pentaplast GmbH & Co. Kg, Montabaur, Germany
Received May 10, 2006
Abstract-Atomic-force microscopy was applied to examination of the topography of the surface of polyvinyl
chloride films treated by corona discharge and nitrogen3oxygen plasma at atmospheric pressure. The structure
of the modified surface was examined, as well as the influence of the surface activation method on the pos-
sibility of its subsequent chemicophysical functionalization.
Numerous studies of matrices of different geneses
 convincingly demonstrated that specifically
the structure and composition of the surface layer
primarily govern the properties and performance char-
acteristics of materials. One of the ways to modify
the material properties is physicochemical impact
on the near-surface layer.
Corona electric discharge (CD) and plasmochemi-
cal treatment (PCT) are widely used in industry for
cleaning and activation of the surfaces of various
materials . At the same time, the influence of these
methods of treatment on the morphology and proper-
ties of the surface of polyvinyl chloride (PVC) films
is insufficiently understood. This necessitates examin-
ing the properties of the initial material as influenced
by the surface treatment procedure in order to eluci-
date the factors responsible for changes in various per-
formance characteristics of PVC films.
We examined here the morphology and adhesion
characteristics of commercial PVC films as influenced
by the method of physicochemical treatment.
Our study was concerned with a 2003300-mm-thick
Pentaprint PVC film (Kloeckner Pentaplast GmbH,
Germany). The main performance characteristic of
this film, widely used for manufacture of packaging
materials, is adhesion of paint and varnish materials
to the film surface.
The corona-discharge treatment was carried out on
a Corona Star (Ahlbrandt GmbH, Germany) commer-
cial setup (Fig. 1) in air without reagents at the volt-
age between ceramic electrodes of 2 kV; the material
movement velocity was 30 m min
. The plasmo-
chemical treatment was carried out on a pilot setup
manufactured by Plasmatreat GmbH (Germany). The
plasma flow was formed in air at atmospheric pressure
Pa) and 300 K.
The surface morphology of the PVC films was
examined by atomic-force microscopy (AFM) on a
Film movement direction
Fig. 1. Schematic of setup for modification of the PVC
film surface. (1) Reactor, (2) reagent mixing and feeding
system, (3) electrodes and corona-discharge zone, (4) re-
agent spraying system, (5) coating deposition zone, and
(6) reactor cooling system.