FRICTION AND WEAR OF RUBBER COMPOUNDS CONTAINING POWDERED POLYNORBORNENE VULCANIZATE

An investigation on the frictional performance of a natural rubber com pound containing polynorbornene (PN) vulcanizate powder was carried ou t at various temperatures between -20 degrees C and 60 degrees C. The glass transition temperature, T-g of the PN vulcanizate was 15 degrees C, At temperatures below its T-g, the frictional coefficient of the c omposite significantly increased to the extent of 10% with a 10 phr ad dition of PN vulcanizate powder, while the wear rates were not greatly affected. The wear behavior of the composite was strongly dependent o n the frictional work input.