A catalytic thin film was deposited on a porous substrate by a liquid phase method for the synthesis of CNTs as a superhydrophobicsuperoleophilic membrane which is non-toxicenvironmental friendly. The filter membrane was installed on the oil-water separation device for operation without power it’s an important technology for recycling economyenvironmental protection.

This technology＇s nanofluid/ultrasonic atomization micro-lubrication system is different from the general micro-lubrication technology that uses high-pressure air atomization. It is first to use cavitation characteristics to disperse a small amount of nanofluid into microscopic particleseffectively disperse the bondingagglomeration of nanoparticles due to the Van der Waals force. The second stage of atomization is carried out through high-pressure air. The oil mist particles of the nanofluid can easily enter the micro-machining cutting area for coolinglubrication.