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Tuesday, July 9 • 11:30 - 11:50

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A new type of composites based on polytetrafluoroethylene(PTFE) applied for water lubricated bearing were prepared. The composite materials were composed of PTFE matrix and dispersed inorganic fillers. This study employed glass fiber, graphite and carbon fiber as the fillers. The formula of composites were designed by orthogonal experimental method(OEM) in which 3 levels of each kind of fillers were set. PTFE suspension resin and fillers were mixed uniformly then moulded and sintered. The friction noise and tribological properties including vibration acceleration level, volume wear rate and coefficient of friction(COF) were investigated on MRH-3A tribological test machine. Compared with typical rubber bearing materials, the PTFE-based composites performed remarkable noise-reduction properties, which would not generate abnormal friction noise at any sliding speed against metal ring. Moreover, the composites showed better wear-resistance than rubber. PTFE-based composite containing 5 wt% glass fiber, 15 wt% graphite and 15 wt% carbon fiber gained lowest volume wear rate.

avatar for Mohammad Rafiee

Mohammad Rafiee

Postdoctoral Fellow, Polytechnique Montréal
Mohammad Rafiee received his Ph.D. degree in Mechanical Engineering from the University of Ottawa in 2018. Currently, he is a Postdoctoral Fellow at Polytechnique Montreal in Canada. His research interests are primarily focused on the development of advanced composite materials, smart... Read More →


Tuesday July 9, 2019 11:30 - 11:50 EDT
Outremont 6
  T08 Mat. for noise & vibr. cntrl., SS02 Vibr damping materials