Abstract
The effects of an electric field on lubricating ability of sodium hyaluronate solution was examined using a reciprocating friction tester for a sliding pair of a conductive silicone rubber cylindrical surface and a stainless steel plate. Lubricants were water or saline solutions with different concentrations of sodium hyaluronate (HA). Remarked decrease in friction was observed with externally applied low-frequency alternating current (AC3V, f=10 Hz, sinusoidal wave) in comparison with high-frequency alternating current. The changes in tangential force showed that the externally rapplied voltage in the mixed lubrication region was capable of shifting the lubrication mode to a milder condition. Under the same applied voltage condition, water-solution lubricants were more sensitive to an electric field than saline-solution lubricants. These results suggest that adsorption to friction surfaces and movement of HA dissociated in a lubricant between surfaces appear to be controlled by an electric field.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
