Brass-coated steel cords are extensively used as reinforcement material in radial tires, high-pressure hydraulic hoses and heavy duty conveyor belts. Bonding between rubber and steel cord is obtained via the formation of an adhesion interface layer during the curing process. The adhesion build-up mechanism involves the chemical reaction of sulfurating species contained in the rubber skim compound and copper of the brass coating, forming a CuxS layer at the rubberbrass interface. Advances in mechanistic investigations are presented, using analytical techniques such as X-ray photoelectron spectroscopy (XPS), Auger electron spectroscopy (AES), atomic force microscopy (AFM) and optical microscopy (OM). XPS and AES provide chemical in-depth information, whereas OM and AFM highlight the morphology of the resulting interfacial layers. These investigations improve the understanding of the adhesion mechanism, both for adhesion build-up and for bond degradation.
Mechanistic investigation of the steel tire cord - rubber interface
Mechanistische Untersuchung Der Stahlreifencord-Gummi-Grenzfläche
2008
20 Seiten, 8 Bilder, 2 Tabellen, 23 Quellen
Conference paper
English
RUBBER COMPOSITION FOR STEEL CORD, STEEL CORD-RUBBER COMPOSITE AND TIRE
European Patent Office | 2017
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