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Study on the Oil Seal Application Using Polytetrafluoroethylene Composites  

Ha, Ki-Ryong (Department of Chemical Engineering, Keimyung University)
Lee, Jong-Cheol (Jin-Yang oilseal co. Ltd.)
Lee, Young-Seok (Department of Chemical Engineering, Keimyung University)
Publication Information
Elastomers and Composites / v.45, no.1, 2010 , pp. 32-39 More about this Journal
Abstract
The mechanical properties of PTFE 100%, PTFT 90% + carbon black 10%, PTFE 85% + glass fiber 15%, PTFE 80% + glass fiber 15% + molybdenum disulfide ($MoS_2$) 5%, PTFE 75% + glass fiber 25%, and PTFE 75% + carbon black 18% + graphite 7% composites were investigated in this study. The differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) were used to examine the heat of fusion(${\Delta}H_f$) and thermal stability of the composites. Also, the wear surface and wear volume of PTFE lip seal were examined using the durability test. Wear surface was observed using scanning electron microscope (SEM). It was found that the hardness, wear resistance and durability were enhanced by adding glass fiber and molybdenum disulfide into pure PTFE, but tensile strength and elongation were decreased. According to the experimental results, the composite (PTFE + 15% glass fiber + 5% molybdenum disulfide) showed the best properties for applying to oil-seal among six types of PTFE composites.
Keywords
polytetrafluoroethylene(PTFE); reinforcement filler; oil-seal; tribology; morphology;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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