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Chemical and Functional Responses to Brake Lining Cure Variations
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Sector:
Event:
Mid-Year Meeting
Language:
English
Abstract
A study was made of the responses of pyrolytic gas chromatography (PGC) and the friction assessment screening test (FAST) to variations in curing conditions for a liquid, oil-modified, phenolic resin system. Both PGC, which characterizes the organic resin, and FAST, which characterizes the friction and wear properties, show systematic variations with changes in cure time and temperature. A linear relationship exists between the area of one PGC peak (phenol) and the wear as determined by the FAST procedure.
A chemical kinetic model is postulated which relates the concentration of phenol produced on pyrolysis to a function of cure time and temperature. An index of cure is introduced which defines the curing conditions in terms of a single parameter. The PGC phenol peak area, FAST friction, and FAST wear correlate well with this index of cure.
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Authors
Citation
Weintraub, M. and Bernard, J., "Chemical and Functional Responses to Brake Lining Cure Variations," SAE Technical Paper 680416, 1968, https://doi.org/10.4271/680416.Also In
References
- Gealer R. L. Biggers B. H. “New Chemical Test for the Characterization of Organic Brake Linings - Pyrolytic Gas Chromatography.” Paper No. 670080 SAE Annual Meeting Detroit January 1967
- Anderson A. E. Gratch S. Hayes H. P. “A New Laboratory Friction and Wear Test for the Characterization of Brake Linings.” Paper No. 670079 SAE Annual Meeting Detroit January 1967
- Purnell Howard “Gas Chromatography.” New York John Wiley & Sons, Inc. 1962
- Anderson A. E. Gealer R. L. Private Communication
- Martin Robert W. “The Chemistry of Phenolic Resins.” New York John Wiley & Sons, Inc. 1956