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The report considers the study of possible applications of thin plasma polymer films with tailored functional properties for surface engineering of coil-coated steel. As surface functionalities scratch resistance, anti-finger print and easy-to-clean properties were studied. Moreover, the adhesion to the polymer coating and the weathering stability of the surface layer were investigated. New methods were developed for the correlation of the functional properties with the chemical structure, thickness, morphology and nanomechanics of the plasma polymer films. Coil-coated steel with a polyurethane top coat and stainless steel were used as technical substrates. Plasma surface activation by means of argon- and oxygen plasmas was studied as a means to improve the highly crosslinked plasma polymer layer to the underlying organic substrate. The plasma activation led to improved adhesion of the plasma polymer films but also influenced the barrier properties of the underlying organic coating system. Plasma polymers films were deposited by means of a hollow cathode reactor, rf-plasma, and microwave plasma polymer deposition to compare the suitability of these technologies for continuous steel sheet modification. The structure of the plasma polymers was varied especially by the way of co-polymerisation and variation of precursor molecules. Inorganic, organic and hybride films could be deposited. Fundamental investigations were done carried out to correlate the chemical structure of the plasma polymers with their micro- and nanomechanical properties, surface energy and barrier properties. The economical aspects of plasma polymer deposition and a study of the scale up of plasma polymer deposition supported the technical evaluation of plasma polymerisation.

Additional information

Authors: GRUNDMEIER G, Max Planck Institut für Eisenforschung, Düsseldorf (DE);SAEMANN N, Dortmunder Oberflächencentrum, Dortmund (DE);STRAUß B, Voestalpine Stahl, Linz (AT);LINDNER B, Voestalpine Stahl, Linz (AT);VALLE R, CSM, Rome (IT);ENGLISH T, Corus, Rotherham (GB);HAMMOND D B, Corus, Rotherham (GB);FEREIRA M, Universidade de AVeiro, Aveiro (PT);ZHELUDKEVICH M, Universidade de AVeiro, Aveiro (PT)
Bibliographic Reference: EUR 22432 EN (2007), 151 pp. Euro: 25
Availability: Katalogue Number: KI-NA-22432-EN-S The paper version can be ordered online and the PDF version downloaded at:
ISBN: ISBN: 978-92-79-04613-1
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