Umweltfreundliche Oberflaechenbehandlungsverfahren zur Verbesserung der Hafteigenschaften von Lacken und Klebstoffen auf recyclingfreundlichen Kunststoffen Abschlussbericht

The sticking strength in the composite material polypropylene/two component epoxide/steel largely is improved by a low pressure plasma pretreatment of the polypropylene in an oxygen atmosphere. A GHz frequency proved more efficient than a MHz frequency. The surface of polypropylene pretreated by low pressure plasma in an atmosphere of oxygen and of nitrogen, respectively, has been characterized by electron microscopy, IR, ESCA and ellipsometry. With oxygen a partial oxidation of surface groups takes place leading to C-0, C=0 and 0-C=0 groupsAvailable from TIB Hannover: F93B103 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman