Dynamic Visco-Elastic Properties of Polycarbonate (PC) under Static and Dynamic Load
The purpose of this work was to investigate the effects of pre-load static load and dynamic load on the visco-elastic in polycarbonate. In the paper, static-dynamic sweep experiment of polycarbonate was performed on EPLEXOR 500N, which was manufactured by GABO of Germany. The variation laws of storage modulus, loss modulus and loss tangent as changing dynamic load in a large range were systematically analyzed and the spectral characteristics of dynamic-viscoelastic under static-dynamic loads were obtained. The experiment results on dynamic visco-elastic under the high load shows that the load effects on dynamic visco-elasticity of polycarbonate performing on the changing of the dynamic visco-elastic parameters, storage modulus become lager with the increasing of static load and decreasing with the increasing of dynamic load, while loss tangent decreases with the increasing of dynamic load and varies in a more complicated pattern as the increasing of static load.
Sihai Jiao, Zhengyi Jiang and Jinglong Bu
S. P. Yin and M. Yu, "Dynamic Visco-Elastic Properties of Polycarbonate (PC) under Static and Dynamic Load", Advanced Materials Research, Vols. 146-147, pp. 1090-1093, 2011