(526c) Hard Carbon Spheres as Micro-Bearings for Water-Based Lubrication
AIChE Annual Meeting
2010 Annual Meeting
Engineering Sciences and Fundamentals
Colloidal Dispersions II
Wednesday, November 10, 2010 - 3:55pm to 4:15pm
Lubricants play an integral role in the operation of several technologies and in biology, ranging from moving parts in machinery to the biolubrication of articular joints. We have found that an easily synthesized system of monodisperse hard carbon submicron spherical particles coupled with a surfactant coating results in an effective water-based lubricant that has frictional coefficients that start approaching those of synovial fluids. Friction forces are measured at varying applied loads between two borosilicate surfaces using a commercial tribometer with different formulations (i.e. varying concentrations of surfactant, carbon particles) of the new lubricant. The novel water-based lubricant formulation is a potential alternative to conventional oil-based lubricants.