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Open AccessArticle

Friction and Wear Performance of Staple Carbon Fabric-Reinforced Composites: Effects of Surface Topography

1
Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
2
Research and Development Center for Smart Textile Technology, National Taipei University of Technology, Taipei 10608, Taiwan
3
Department of Biological Science and Technology, College of Biopharmaceutical and Food Sciences, China Medical University, Taichung 40402, Taiwan
*
Author to whom correspondence should be addressed.
Polymers 2020, 12(1), 141; https://doi.org/10.3390/polym12010141
Received: 28 November 2019 / Revised: 25 December 2019 / Accepted: 1 January 2020 / Published: 6 January 2020
(This article belongs to the Special Issue Carbon Materials Modified Polymeric Composites)
Here, staple carbon fiber fabric-reinforced polycarbonate (PC)- and epoxy (EP)-based composites with different impregnating resin levels were fabricated using a modified film stacking process. The effects of surface topographies and resin types on the tribological properties of stable carbon fabric composites (sCFC) were investigated. Friction and wear tests on the carbon composites were conducted under unlubricated sliding using a disk-on-disk wear test machine. Experimental results showed that the coefficient of friction (COF) of the sCFC was dominated by matrix type, followed by peak material portion (Smr1) values, and finalized with core height (Sk) values. The COF of composites decreased by increasing the sliding speed and applied pressure. This also relied on surface topography and temperature generated at the worn surface. However, the specific wear rate was strongly affected by resin impregnation. Partially-impregnated composites showed lower specific wear rate, whereas fully-impregnated composites showed a higher wear rate. This substantially increased by increasing the sliding speed and applied pressure. Scanning electron microscopy observations of the worn surfaces revealed that the primary wear mechanisms were abrasion, adhesion, and fatigue for PC-based composites. For EP-based composites, this was primarily abrasion and fatigue. Results proved that partially-impregnated composites exhibited better tribological properties under severe conditions.
Keywords: staple carbon fiber fabric; hybrid composites; impregnation ratio; surface topography; friction and wear staple carbon fiber fabric; hybrid composites; impregnation ratio; surface topography; friction and wear
MDPI and ACS Style

Wu, C.-M.; Cheng, Y.-C.; Lai, W.-Y.; Chen, P.-H.; Way, T.-D. Friction and Wear Performance of Staple Carbon Fabric-Reinforced Composites: Effects of Surface Topography. Polymers 2020, 12, 141.

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