Observation of filler dynamics in rubber with X-ray photon correlation spectroscopy

Abstract

Understanding of the microscopic dynamics of fillers in rubber is a key to understand the property of macroscopic response of filled rubber. In the present study, we observe microscopic dynamics of silica and carbon black nanoparticles in unvulcanized rubber by using X-ray Photon Correlation Spectroscopy (XPCS). Dependence of dynamics on the temperature of sample, the volume fraction of particles and the interface between filler particles and rubber chains is observed. The results clearly show the usefulness of XPCS to investigate the filler dynamics in rubber. © Published under licence by IOP Publishing Ltd.