Conductivity Enhancement of Low Friction Dry Film Based Lubricant Containing Carbon Nano-Tube

Electrically conductive dry film lubricants are prepared from aqueous dispersion of carbon nano-tube and polymers based particles. The carbon nano-tube were uniformly dispersed and connected to each other within this film. Relatively small amount of conductive carbon nano-tube greatly improved the electrical conductivity because the extremely high aspect ratio of carbon nano-tube leads to segregated network that significantly lowers the percolation threshold. It can be used in aerospace fastener industry to protect the aircraft from the consequences of lightning strike by improving electrical conductivity within the fastener assembly. In addition, the nanotube added lubricants maintains its high thermal conductivity, less weight, and very resistant to oxidation.