Analysis of Dynamic Viscoelastic Behavior of Rubber at Different Conditions

Dynamic property experiments of SBR/BR vulcanizates were carried out by vibration simulation.This work focused on the effect of pre-stress,loading frequency,and environment temperature on the hysteretic curves.Moreover,the relationship of the loss factor with the loading frequency and environment temperature was also discussed.The results showed that the area of hysteretic curve increased with the increasing of pre-stress and loading frequency;however decreased with the increasing of environmental temperature.The loss factor decreased with temperature increasing and increased with frequency increasing.The change of loss factor under high frequency was more obvious than that under low frequency.