A computational study of adhesion between rubber and metal sulfides at rubber-brass interface

作者: Chian Ye Ling , Janne T. Hirvi , Mika Suvanto , Andrey S. Bazhenov , Tommi Ajoviita

DOI: 10.1016/J.CHEMPHYS.2015.03.004

关键词: AdsorptionAdhesionInorganic chemistryCopper sulfideChemistryHydrogen sulfideNatural rubberVulcanizationZinc sulfideSulfide

摘要: Abstract Computational study at level of density functional theory has been carried out in order to investigate the adhesion between rubber and brass plated steel cord, which high importance tire manufacturing. Adsorption natural based adsorbate models studied on zinc sulfide, ZnS(1 1 0), copper Cu 2 S(1 1 1) CuS(0 0 1), surfaces as corresponding phases are formed adhesive interlayer during vulcanization. Saturated hydrocarbons exhibited weak interactions, whereas unsaturated sulfur-containing adsorbates interacted with metal atoms sulfide more strongly. Sulfur-containing ZnS(1 1 0) surface stronger than hydrocarbons, whereras both CuS(0 0 1) showed opposite adsorption preference adsorbed adsorbates. The different interaction strength can play role rubber–brass relative concentrations. Moreover, exhibits higher energies surface, possibly indicating dominant S brass.

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