Tribological Properties of PPS/PA46 Polymer Blends

Abstract

In this study, the tribological performance of originally 40 wt.% fiber glass reinforced polyphenylene sulfide (PPS-G), polyamide 46 (PA46) and their blends were studied at dry sliding conditions. The materials were mixed and extruded on the twin screw extruder. The blends were dried and tribological test specimens were manufactured by using the injection machine. Wear tests were performed with the configuration of a polymer pin on a rotating X40CrMoV5-1 steel disc. Test conditions were atmospheric conditions having 60, 90, 120 N loads and 0.5, 1.0, 1.5 m/s sliding speeds. The obtained results proved that the coefficient of friction for PPS-G, PA46 and their blends is decrease while the applied load and sliding speed values are increase. On the other hand, the specific wear rate is in increase while the applied load and sliding speed values are in increase.

Comparison of the Thermal and Mechanical Properties of Poly(phenylene sulfide) and Poly(phenylene sulfide)–Syndiotactic Polystyrene-Based Thermal Conductive Composites

“… 11 PPS was also blended with PA46 to improve the tribological property of PPS, and blending decreased the density of PPS composites. 12 However, the more polar PA46 absorbed more water than less polar PA6 and PA66 and, therefore, is more susceptible to moisture-induced dimensional growth. 13 While improvement in materials is necessary to achieve weight savings without sacrificing performance, the property, manufacturability, and cost requirements for automotive structures are often not met by the existing set of advanced lightweight materials.…”

“…Moreover, the polymer blends (PA66 and PPS) are immiscible on a molecular scale . PPS was also blended with PA46 to improve the tribological property of PPS, and blending decreased the density of PPS composites . However, the more polar PA46 absorbed more water than less polar PA6 and PA66 and, therefore, is more susceptible to moisture-induced dimensional growth .…”