Enhancing the Adhesion Retention by Controlling the Structure of the Adhesion Interphase Between Rubber Compound and Metal. Part I. Effect of Cobalt Salt

Author: Jeon, Gyung Soo

Source: Journal of Adhesion Science and Technology, Volume 23, Number 6, 2009 , pp. 913-930(18)

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Abstract:

The adhesion between cobalt salt-containing rubber compounds and brass-plated steel cords was studied to understand the role of cobalt salt as an adhesion promoter. An improvement in adhesion was shown with the low loading of cobalt salt in the range 0.5-1 phr, while a significant decline in adhesion was observed with high loading at 2 phr and a long aging time of 15 days under humidity aging. The adhesion interphase between the rubber compound and the brass-plated steel cord studied using Auger electron spectroscopy (AES) showed stable depth profile by cobalt salt incorporation at low loading, resulting in the enhancement of the adhesion retention. For the high loading of cobalt salt, adhesion interphase grew excessively, especially ZnO layer formed under humidity aging, which resulted in reduced adhesion.

Keywords: COBALT SALT; ADHESION PROMOTER; RUBBER-TO-BRASS BONDING; ADHESION INTERPHASE; AES; DEPTH PROFILE; DEZINCIFICATION; COPPER SULFIDE; ZINC OXIDE; HUMIDITY AGING; ADHESION STABILITY

Document Type: Research article

DOI: http://dx.doi.org/10.1163/156856109X411256

Affiliations: 1: Department of Fire-Safety Management, Jeonnam Provincial College, Damyang, Jeonnam 517-802, South Korea;, Email: gjeon@dorip.ac.kr

Publication date: 2009-04-01