Development & evaluation of new binders for friction materials as alternative to traditional Phenolics
[ mercredi 20-06-2007 13:00
| anglais ]Development & evaluation of new binders for friction materials as alternative to traditional Phenolics
Industrial Tribology, Machine Dynamics and Maintenance Engineering Centre (ITMMEC), Indian Institute of Technology Delhi
Phenolics or their modified versions are invariably used as binder materials for friction composites which consist of multiple ingredients. However, phenolics are known for their inherent serious problems such as; poor shelf which poses constraints for storage and transportation; evolution of harmful volatiles leading to voids, cracks and environmental pollution etc. In order to overcome these, three new thermosetting resins (not from phenolic family) were synthesized in the laboratory, which are free from the above mentioned drawbacks. The friction composites developed were tribo-evaluated as per Industry practice to explore the possibility of replacing currently used phenolics based friction materials. The results confirmed that new composites have edge over the conventional one from tribology point of view also.