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    Effect of corona discharge on the morphology of polyester fiber top layer

    Year: 2010

    Journal: Journal of Applied Polymer Science, Volume 116, Issue 6, pages 3659–3667, 15 June 2010, 20111221

    Authors: Stefan Brzezin´ ski, 1 Adam Tracz, 2 Stefan Polowin´ ski, 3 Dorota Kowalczyk 1

    Organizations: 1 Department of Non-conventional Techniques and Textiles, Textile Research Institute, Gdan´ ska 118, Lo´dz´ 90–520, Poland 2 Center of Molecular and Macromolecular Studies, Polish Academy of Science, Sienkiewicza 112, Lo´dz´ 90-363, Poland 3 Department of Physical Chemistry of Polymers, Technical University of Lo´tz´, Zeromskiego 116, Lo _ ´dz´ 90-543, Poland

    The penetration of a woven fabric by corona discharge is of paramount importance for the achievable result of its modification. It was examined how the fiber top layer structure of polyester woven fabric was changed because of its treatment with corona discharge under atmospheric pressure. The corona discharge used was generated with the use of an original generator equipped with a set of multisegmental electrodes that made it possible to obtain a required level of activation energy in successively supplied “portions,” which simultaneously prolonged the time of plasma impact. Changes in the topography of fiber top layer were examined by the AFM method. It has been found that this corona discharge can shape the fiber top layer in a qualitatively similar way as in the case of polyester films (characteristic globular structure). It has also been established that the achievable effect of modification is not limited exclusively to the fibers that form the external surface of the fabric activated, but it also affect, though to different extent, the fibers from various areas of the fabric structure.