Vibration damping and energy loss in bromobutylrubber-Effect of filler size and shape

摘要

Pristine rabber is an excellent sound and vibration absorber, but has poor resistance to abrasion and rapidly degrades especially when exposed to UV light. To produce a material with acceptable mechanical and environmental resistance for critical applications, the rubber must be reinforced, normally with carbon black filler. While improving the mechanical and environmental resistance of the rubber, the reinforcement has a negative effect on the damping or sound absorption of the rubber. It is therefore an advantage to be able to use as little reinforcement as possible, concomitant with acceptable mechanical properties and UV and weather resistance. Elastomers filled with short fibres and graphite are receiving attention because of the ability to tailor their vibration damping potential. A rubber composite with a combination of these fillers can offer good damping with adequate mechanical properties.