Friction and wear performance of some thermoplastic polymers and polymer composites against unsaturated polyester

• Published in: Applied surface science Vol. 252; no. 23; pp. 8139 - 8146
• Main Authors: Unal, H., Mimaroglu, A., Arda, T.
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 30-09-2006; Elsevier Science
• Subjects: BMC; Composites; Cross-disciplinary physics: materials science; rheology; Exact sciences and technology; Friction, lubrication, and wear; Materials science; Physics; Thermoplastics; Treatment of materials and its effects on microstructure and properties; Tribology; BMC; Composites; Thermoplastics; Tribology; Materials testing; Composite materials; Friction; Sliding wear; Friction factor; Wear testing; Polymers; Glass fibers
• ISSN: 0169-4332; 1873-5584
• DOI: 10.1016/j.apsusc.2005.10.047

Wear experiments have been carried out with a range of unfilled and filled engineering thermoplastic polymers sliding against a 15% glass fibre reinforced unsaturated polyester polymer under 20, 40 and 60
N loads and 0.5
m/s sliding speed. Pin materials used in this experimental investigation are polyamide 66 (PA 66), poly-ether-ether-ketone (PEEK) and aliphatic polyketone (APK), glass fibre reinforced polyamide 46 (PA 46
+
30% GFR), glass fibre reinforced polytetrafluoroethylene (PTFE
+
17% GFR), glass fibre reinforced poly-ether-ether-ketone (PEEK
+
20% GFR), glass fibre reinforced poly-phylene-sulfide (PPS
+
30% GFR), polytetrafluoroethylene filled polyamide 66 (PA 66
+
10% PTFE) and bronze filled pofytetrafluoroethylene (PTFE
+
25% bronze) engineering polymers. The disc material is a 15% glass fibre reinforced unsaturated polyester thermoset polymer produced by Bulk Moulding Compound (BMC). Sliding wear tests were carried out on a pin-on-disc apparatus under 0.5
m/s sliding speed and load values of 20, 40 and 60
N. The results showed that the highest specific wear rate is for PPS
+
30% GFR with a value of 1
×
10
−11
m
2/N and the lowest wear rate is for PTFE
+
17% GFR with a value of 9.41
×
10
−15
m
2/N. For the materials and test conditions of this investigation, apart from polyamide 66 and PA 46
+
30% GFR polymers, the coefficient of friction and specific wear rates are not significantly affected by the change in load value. For polyamide 66 and PA 46
+
30% GFR polymers the coefficient of friction and specific wear rates vary linearly with the variation in load values.