Influence of a novel hardener p-toluene sulphonic acid on mechanical and wear response of phenolic based friction materials

Pai, Anand and Kini, Vijaya M and Pokharel, Vishesh (2017) Influence of a novel hardener p-toluene sulphonic acid on mechanical and wear response of phenolic based friction materials. Tribology Transactions, 60 (5). pp. 770-780. ISSN 1040-2004

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Abstract

The current work was aimed at finding out the effect of p-toluene sulphonic acid (PTSA) in phenolic based friction materials on mechanical and tribological properties. This study involved usage of phenolic resin as the binder, PTSA as the hardener, treated coconut coir whiskers as the reinforcing fiber, graphite particulates as dry lubricant and granite fines as fillers. The synthesis has been carried out by hot and cold setting techniques. Apart from the hot set linings (HSL‟s) and cold set linings (CSL‟s), a lining without PTSA was fabricated for comparison. To analyze the mechanical response of the different compositions, tensile tests, compression tests, micro Vicker‟s hardness tests and density measurements have been taken up. The evaluation of friction coefficients along with the wear rate has been carried out using two body sliding wear test. The wear tests were carried out at loads of 5-15 N and speeds of 400-600 RPM. CSL‟s showed a coefficient of friction 0.29 and average wear rate of 2.67×10-6 mm3/Nm whereas HSL‟s showed a coefficient of friction 0.48 and average wear rate of 2.24×10-6mm3/Nm. Optical microscopy and SEM were used to study the microstructure of the friction linings while the wear morphology of the different linings was analysed by SEM along with EDS analysis

Item Type: Article
Uncontrolled Keywords: Friction Materials; p-toluene sulphonic acid; Wear; optical microscopy; SEM.
Subjects: Engineering > MIT Manipal > Aeronautical and Automobile
Engineering > MIT Manipal > Mechanical and Manufacturing
Depositing User: MIT Library
Date Deposited: 29 Aug 2017 08:44
Last Modified: 29 Aug 2017 08:44
URI: http://eprints.manipal.edu/id/eprint/149597

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