A composite preform and the method for preparing a highly oriented carbon nanotube

The present invention discloses a composite preform and preparing a highly oriented carbon nanotube, belongs to the technical field of nanomaterials. The preparation method of randomly oriented carbon nanotube film with a resin to prepare a composite carbon nanotube composite preform; then the process of drawing the preform to increase the degree of orientation of the carbon nanotubes; distraction after the primary carbon after nanotube composite preform can be autoclaved secondary drawing. The carbon nanotube composite preform prepared in the present invention has excellent mechanical properties, thermal properties and electrical conductivity, has a very broad application prospects in structural materials, thermal conductivity and electromagnetic shielding electronics and other fields. The carbon nanotube composite preform according to the present invention provides increased interaction between the carbon nanotubes, the carbon nanotube composite preform after the second drawing, draw ratio can be up to 55%, a tensile strength of 965 MPa; the the degree of orientation of polarization Raman spectrometry 9.8.