MANUFACTURING METHOD OF FILAMENT FOR 3D PRINT AND FILAMENT

摘要

The present invention relates to a filament for 3D printing and a method for producing the same. The purpose of the present invention is to provide a filament for 3D printing, to which CNTs having a high aspect ratio, mechanical strength and elasticity are added to improve the mechanical properties thereof. To achieve the above, the present invention provides a method for producing a filament for 3D printing, wherein the method comprises the following: (a) producing a mixture by mixing a thermoplastic resin and CNTs; (b) extruding the mixture to form a molded article; and (c) winding the molded article. According to the present invention, a filament for 3D printing having improved mechanical properties can be produced.