English Abstract

Improvement of the Heat Aging Resistance of Rubber Vulcanizate Using Antidegradant

Shigemitsu OTOMO
Ouchi Shinko Chemical Industrial Co., Ltd., Chuo-ku, Tokyo, Japan
Nippon Gomu Kyokaishi,(2014),87(5),180-186 General Review in Japanese

Since tire and automobile parts such as fuel hose and rubber packing and timing belts etc are made of rubber vulcanizate, the improvements of their heat aging resistance by addition of antidegradant is very important theme.
This paper reviews the guide to the selection of proper antidegradant for improvement of heat aging resistance of rubber vulcanizate at various aging temperature, and better synergistic effects produced by the best combination of chain breaking antioxidants and peroxide decomposer, and the chemical reaction of novel antidegradant to rubber in the processing steps to afford non-extractable antidegradant.

Keywords: Antidegradant, Heat Aging Resistance, Synergistic Effect, Vulcanizate, Chain Breaking Antioxidant, Peroxide Decomposer