The tensile strength of test pieces made from natural rubber vulcanizates drops abruptly at a
critical temperature which can vary from 40 to 130° C. This variation in critical temperature is …

The force acting upon the jaws of the tear testing machine is always measured in tear
strength tests and its value serves as a criterion of the tear resistance. This force, measured …

The dependence of tensile strength of a number of vulcanizates on temperature has heen
studied. A critical temperature θc is found for natural rubber at which an abrupt change in …

Abstract Knowledge of rupture properties is required to characterize rubbers in laboratory
evaluation adequately and to attempt to estimate service performance. The most commonly …

This paper supplies the need for a simple, rapid, and accurate method for determin-ing the
brittle temperature of rubber and allied materials. The method depends on the fact that …

An instrument for measuring stresses was constructed, whereby changes in tension brought
about by changes in temperature in rubber maintained at constant elongation were …

WITHIN the past two years the performance of rubberlike composi-tions at low temperatures
has become important. A number of tests havebeen devised to measure the loss of …

The purpose of this chapter is to introduce the subject of physical testing of rubber in terms of
its rationale, methods, trends, and limitations. As the name implies, physical testing involves …

The state of vulcanization of rubber compounds usually has been deter-mined from stress-
strain measurements at some arbitrary load or elongation. Roth and Stiehler* found that the …

The recent use of rubber components in extremes of climate and under a variety of service
conditions has drawn attention to the importance of the knowledge of the physical properties …