Enhancement of the wear resistance of epoxy: short carbon fibre, graphite, PTFE and nano-TiO 2

Enhancement of the wear resistance of epoxy: short carbon fibre, graphite, PTFE and nano-TiO 2 Enhancements of the wear resistance of epoxy using various fillers, e.g. short carbon fibre (CF), graphite, polytetrafluoroethylene (PTFE) and nano-TiO 2 , have been systematically investigated in the present study. Wear properties were carried out on a block-on-ring apparatus. The best wear resistant composition was achieved by a combination of nano-TiO 2 with conventional fillers; as an example, epoxy+15 vol% graphite+5 vol% nano-TiO 2 +15 vol% short-CF exhibits a specific wear rate of 3.2×10 −7 mm 3 /Nm, which is about 100 times lower when compared to the neat epoxy. Worn surfaces were investigated using a scanning electron microscope and an atomic force microscope, from which it is assumed that a mechanism of nanoscale rolling governs this positive effect of the nanoparticles. The main concept of this paper is to strength the importance of integrating various functional fillers in the design of wear resistant polymer composites. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Composites Part A: Applied Science and Manufacturing Elsevier

Enhancement of the wear resistance of epoxy: short carbon fibre, graphite, PTFE and nano-TiO 2

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Publisher
Elsevier
Copyright
Copyright © 2004 Elsevier Ltd
ISSN
1359-835x
D.O.I.
10.1016/j.compositesa.2004.05.005
Publisher site
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Abstract

Enhancements of the wear resistance of epoxy using various fillers, e.g. short carbon fibre (CF), graphite, polytetrafluoroethylene (PTFE) and nano-TiO 2 , have been systematically investigated in the present study. Wear properties were carried out on a block-on-ring apparatus. The best wear resistant composition was achieved by a combination of nano-TiO 2 with conventional fillers; as an example, epoxy+15 vol% graphite+5 vol% nano-TiO 2 +15 vol% short-CF exhibits a specific wear rate of 3.2×10 −7 mm 3 /Nm, which is about 100 times lower when compared to the neat epoxy. Worn surfaces were investigated using a scanning electron microscope and an atomic force microscope, from which it is assumed that a mechanism of nanoscale rolling governs this positive effect of the nanoparticles. The main concept of this paper is to strength the importance of integrating various functional fillers in the design of wear resistant polymer composites.

Journal

Composites Part A: Applied Science and ManufacturingElsevier

Published: Dec 1, 2004

References

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