Investigation into the Effects of Accelerated Aging Conditions on Adhesion of Resorcinol–Formaldehyde–Latex Treated Synthetic Cords

Abstract

The adhesion between the interface of synthetic fiber and rubber is achieved by coating the surface of synthetic cord with Resorcinol–Formaldehyde–Latex (RFL) adhesive solution. The strength of adhesion between fiber–RFL–rubber, depends on several factors. These include an optimum coating and curing conditions involving the control of timing, tension and temperature. Even if good adhesion is obtained by controlling the optimum conditions, the adhesion could be lost to some extend, if the RFL coated cords are exposed to indifferent and harsh ambient conditions. In this article, the adhesion behaviour of RFL dipped cord, after prolonged exposure to temperature, humidity and daylight was investigated. The adhesion was monitored by the pull out method. The analysis of the un-aged and aged cords were carried out by contact angle measurement, ATR spectroscopy and cord cross-section microscopic analysis.

Keywords:

• ADHESION
• AGING
• RESORCINOL-FORMALDEHYDE-LATEX
• TIRE CORD