Patent ID: 9162893
Filing Date: 2015-10-20
Classification: B82B,B82Y,C01B,Y10T

Abstract:
1. A method for making a carbon nanotube composite preform, the method comprising: providing a substrate; forming a plurality of carbon nanotubes on the substrate; immersing the plurality of carbon nanotubes and the substrate in a solvent for a predetermined time, wherein each of the plurality of carbon nanotubes comprises a first end attached on the substrate, and a second end extending away from the substrate, and a plurality of gas pockets are entrapped between the plurality of carbon nanotubes in the solvent; forming a plurality of honeycomb-shaped gaps between the second ends of the plurality of carbon nanotubes by evacuating the plurality of gas pockets entrapped in the plurality of carbon nanotubes from the solvent with an ultrasonic vibration, wherein the plurality of gas pockets shift-the second ends of the plurality of carbon nanotubes; taking the plurality of carbon nanotubes and the substrate out of the solvent; and drying the plurality of carbon nanotubes and the substrate.