The Influence of Temperature on The Kinetics of Cut Growth in Vulcanizates

Publisher Website
Google Scholar
Abstract
Recently published research has conclusively demonstrated that rupture in vulcanizates represents a process which increases with time. Slow and fast stages of rupture were discerned. Through the use of high speed photography it was found that, in the usual testing of tensile strength, the rate of rupture growth is initially very small but then quickly although intermittently increases. This behavior occurred both in the rupture of specimens which were not cut and in testing specimens that had been previously cut. The effect of a cut has been thoroughly investigated. Studies conducted on the mechanism of rupture in elastomers indicate that the rupture of vulcanizates has much in common with that of brittle solids. Nevertheless there is a significant difference in the mechanism of rupture in elastomeric materials and brittle solids. It was natural, therefore, to expect a significant change in the kinetics of rupture growth in the region of the glass transition temperature. The aim of the present investigation was to follow the change in the kinetics of rupture of vulcanizates through the transition from the rubbery to the glassy state.

This publication has 0 references indexed in Scilit: