... antioxidants are environmentally safe, since they do not form hazard compounds during vulcanization. Moreover, many uracil derivatives have been reported to have antioxidative and anti‐inflammatory activities (Yakout and El‐Sabbagh, 2007 ; Isobe et al., 2003). They are also known to be associated...

... vulcanization. Nitrile rubber (NBR): acrylonitrile content 38 per cent, Moony viscosity a 100°C 45, specific gravity 1.17, ash content 0.5 per cent (Bayer Chemicals). N‐cyclohexyl‐2‐benzothiazole sulphenamide (CBS): pale grey, non‐hygroscopic powder, melting point 95‐100°C and specific...

...., 1994 ; Yukio and Kokichi, 1998 ; Evans and Huber, 2001). The durability of rubber products is affected by environmental circumstances such as the action of heat, light, high energy radiation, etc. Rubbers Oxides Vulcanization Rubber is a class of polymeric materials which is expected...