English Abstract

Properties and Applications of Rubber/Filler Coupling Agents SUMILINK®100/200

Shiki NOJIMA *1
Toshihiro NOBUOKA *3
Hiroshi AOSHIMA *1
Yasuo UEKITA *4
Osamu TOKUDA *1
Sadayuki NAKANO *1
Satoru MORITOMI *5
Shinzo SEKO *2
Tatsuo SASSA *1
*1:Sumitomo Chemical Co., Ltd., Energy & Functional Materials Research Laboratory, Sodegaura-City, Chiba, Japan
*2:Sumitomo Chemical Co., Ltd., Synthetic Rubber Dept. Advanced Polymers Div., Chuo-ku, Tokyo, Japan
*3:Sumitomo Chemical Advanced Technologies LLC., Technology & Development Resorcinol Resins, Pittsburgh, PA, USA
*4:Sumika Chemtex Co., Ltd. Functional Polymers Division Emulsion Sales & Marketing Group & R&D Group, Chuo-ku, Tokyo, Japan
*5:ZS Elastomers Co., Ltd., Research & Development Center, Kawasaki-shi, Kanagawa, Japan
Nippon Gomu Kyokaishi,(2020),93(6),207-214 General Review in Japanese

The rubber/filler coupling agents, SUMILINK®100/200, have been developed with the aim of reducing the hysteresis loss of natural rubber (NR)/carbon black (CB) composite. These two coupling agents effectively reduce tan δ (60 ºC) value without negative effect on other properties by inducing better CB dispersion in the composite.
The coupling agents are also able to be applied to various rubber/filler composites, such as NR/silica, emulsion polymerized styrene-butadiene rubber/CB, butadiene rubber/CB, chloroprene rubber/CB and ethylene-propylene-diene rubber/CB composites, for the purpose of improving properties.
In this article, we report development strategy, general properties, plausible mechanism and applications of the coupling agents to the various rubber/filler composites.

Keywords: Coupling Agent, Carbon Black, Silica, Natural Rubber, Synthetic Rubber, Hysteresis Loss, Rolling Resistance, Energy-Saving Tire