PRE-TREATMENT METHOD OF CARBON NANOTUBE FOR CARBON NANOTUBE/POLYMER COMPOSITE, MANUFACTURING METHOD FOR CARBON NANOTUBE/POLYMER COMPOSITES AND CARBON NANOTUBE/POLYMER COMPOSITES USING THE CARBON NANOTUBE

摘要

Provided is a pretreatment method of carbon nanotubes for carbon nanotube/polymer composite, a method for preparation of a carbon nanotube/polymer composite using the same, and a carbon nanotube/polymer composite prepared therefrom. The pretreatment method of carbon nanotubes in accordance with the present invention includes 1) sonicating carbon nanotubes in a hydrogen peroxide (H O ) solution at a temperature of 3O0C to 7O0C for 50 to 130 min; 2) adjusting a pH of the product of Step 1 to a desired range; and 3) freeze-drying the product of Step 2. The pretreatment method of the present invention increases the dispersibility of carbon nanotubes, and enables production of a carbon nanotube/ polymer composite having excellent dispersibility, electrical properties and rheological properties. Further, the carbon nanotube/polymer composite of the present invention has excellent electrical conductivity and electromagnetic wave-shielding effect.