Abstract
Blending Polytetrafluorothylene (PTFE) to PA6 with and without maleic anhydride grafted Polytetrafluorothylene (PTFE-g-MA) was produced in a corotating twin screw extruder. The effect of PTFE-g-MA on the tensile properties and tribological properties of PTFE/PA6 polymer blends is studied. Results show that the presence of PTFE-g-PA6 in the PTFE continuous phase improves the interfacial adhesion, as a result of the creation of an interphase that was formed by the interaction between the formed PTFE-g-PA6 copolymer in situ and both phases. Compared with the PTFE/PA6 without PTFE-g-MA, the PTFE/PA6 with PTFE-g-MA had the lowest friction coefficient and specific wear rate under given applied load and reciprocating sliding frequency.
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