Progress in the tribologcal study on polymer materials was made by the researchers of the State Key Laboratory of Solid Lubrication. Researchers investigated the triboelectrification electrostatic potential (TEP) of neat MC nylon and MC nylon composites under dry sliding and dry rolling respectively and studied the effect of carbon black (CB) and mechanisms of anti-triboelectrification of composites.
The results indicated that the incorporation of CB with proper fractions made considerable contributions to reduce and stabilize the TEP and to control the electrical resistivity of composites. The TEP of neat MC nylon is easily influenced by friction operating parameters, while the external conditions almost have no influence on the TEP of composites. It is the conductive paths that play the dominant role in composites.
The research provides guidance to the tribological application of these polymer materials. And the research result was published in the recent issue of Tribology International (TRIBOLOGY INTERNATIONAL 43 (3): 568-576).
FESEM micrographs of fracture surface of MC nylon composites with 2 wt% CB: (a) ×10,000 and (b) ×30,000 |
Introduction
