Abstract
Poly-tetrafluoroethylene (PTFE) is a high performance engineering polymer generally used as a coating material. PTFE shows poor wear resistance, thus in order to improve the wear resistance of PTFE, cryogenic treatment (CT) has proved to be the most effective technique. The improvement in wear performance of PTFE on CT at −185 °C for 12 h has been conclusively established whereas, its effectivity on PTFE-mica composite coating is not yet studied. Thus in the present investigation the suitable parameters of CT for PTFE composite coating are established. In addition to this, the wear behaviour and mechanism of different types of PTFE composite coatings, popularly used in non-stick cookware is also studied in a comparative manner as before and after CT. The wear performance of the composite is found to be enhanced.
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