Polyamide 6/Polyurethane/Graphite Composites Prepared by Anionic Polymerization Process. II. Friction and Wear

Xin Deng; Du Xin Li; Jin Wang; Jun Yang

doi:10.4028/www.scientific.net/AMR.532-533.30

Paper Titles

Kinetics of Thermal Oxidation of TA2
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Experimental Study of Squeeze Casting of AZ31 Magnesium Alloy
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Modified N Doped TiO₂ Nanotubes with Magnetic γ-Fe₂O₃ as Visible Light Photocatalysts
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Effect of Diamond on the Thermal Conductivities of Diamond-Copper Composites Prepared by Spark Plasma Sintering
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Polyamide 6/Polyurethane/Graphite Composites Prepared by Anionic Polymerization Process. II. Friction and Wear
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Investigation on Preparation and Electrical Properties of Novel Perovskite Cathode Materials Doped with Multi-Elements for IT-SOFC
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Polyamide 6/Polyurethane/Graphite Composites Prepared by Anionic Polymerization Process. I. Mechanical Properties
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Study of Detecting Flaws in a Heavy Bridge-Making Steel Plate
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Fractal Characteristic and Impact Strength of PLA-Based Wood Plastic Composites
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Polyamide 6/Polyurethane/Graphite Composites Prepared by Anionic Polymerization Process. II. Friction and Wear

Abstract:

Polyamide 6-polyurethane (PA6-PU) block copolymers filled with graphite particles were prepared by anionic polymerization process. The friction and wear experiments were conducted using a UMT-3 machine with the chromium steel ball sliding on surface of the composites at high sliding speeds of 500rpm, 1000rpm and 1500rpm and loads of 78.5N and 157N. With adding of graphite, coefficient of friction and wear rate values of the composites decreased firstly, and then increased. And the influence of the applied load and sliding speed on tribological properties of the composites was explored in this study. The results showed coefficient of friction and wear rate values increased with the increasing of load. Coefficient of friction decreased and wear rate values increased with increasing of sliding speed. Microstructure of wear surface of the tested composites was inspected by scanning electronic microscope(SEM) and wear mechanism of the composites was studied.