English Abstract

Structure and Property Relationship in Nano-filler Loaded Cross-linked Rubbers
2. Visualization of carbon black network in rubber vulcanizates and its relationship with electric properties

Atsushi KATO *1
Yuko IKEDA *2
*1:Department of Material Analysis, NISSAN ARC, LTD., Yokosuka, Kanagawa, Japan
*2:Graduate School of Science and Technology, Kyoto Institute of Technology, Matsugasaki, Kyoto, Japan
Nippon Gomu Kyokaishi,(2014),87(6),252-259 General Review in Japanese

Advantages of 3D-TEM/electron tomography are described for development of rubber science and technology. The first result of visualization of carbon black (CB) network is shown, which was obtained by combining 3D-TEM/electron tomography and electric characteristic measurements. A novel analysis for characterization of the CB network is proposed on the basis of gelation mechanism of polymer network, where structural parameters of crosslined and branched chains of CB aggregates are determined by 3D-TEM/electron tomography and are utilized. Good relationships between the CB network structures and electrolytic properties are also shown in this review paper.

Keywords: Carbon (CB) Black-filled Natural Rubber Vulcanizate, 3D-TEM, CB Network Structure, Volume Resistivity, Dielectric Relaxation