Effect of fillers on the viscoelastic behavior of rubbers

摘要

AbstractThe different reinforcing effects of carbon blacks are determined by measurements of the linear and nonlinear viscoelastic behavior of natural rubber samples subjected to prestrains at different levels. The transition from linear to nonlinear viscoelastic behavior occurs at lower strains as the carbon black content is increased. At a given filler concentration, the limiting strain is highest for the most reinforcing carbon black. Prestraining increases the limiting strain. The reinforcing effect of carbon black can be estimated by determining the extent to which prestraining influences the linear viscoelastic properties of vulcanizates.