English Abstract
Change in Construction of Uncured, Filled Rubber

The Yokohama Rubber Co. Ltd, Oiwake, Hiratsuka, Kanagawa, Japan
Nippon Gomu Kyokaishi,(2009),82(5),209-214 General Review in Japanese

Uncured, filled rubbers show remarkable nonlinear viscoelsticity as well as cured, filled rubbers. The nonlinearity may come from change in entanglement and filler network structures. Relaxation modulus G(; t), electric resistance (; t), and differential dynamic modulus Ef(; t), Eh(; t), tan have been measured simultaneously for carbon black filled, uncured styrene-butadiene rubbers. The result shows the origin of the nonlinear behaviors of filled, uncured rubber is connecting to change in filler networks.

Rubber, Carbon Black, Filler, Network, Viscoelasticity, Volume Resistivity