Nanocomposites and nanomaterials
Filament based on functional polymer nanocomposite
for additive technologies 
O. Masiuchok1,a, M. Iurzhenko1,b, Ye. Mamunya2, R. Kolisnyk1
1 Plastics Welding Department, E.O.Paton Electric Welding Institute of the National Academy of Sciences of Ukraine, 11 Kazymyr Malevych str., Kyiv 03680, Ukraine. 
E-mail: masyuchock@bigmir.neta, 4chewip@gmail.comb
2 Institute of Macromolecular Chemistry of the National Academy of Sciences of Ukraine, Kharkivske shosse 48, Kyiv 02160,Ukraine.

Additive Manufacturing (AM) or 3D-printing is a promising direction of production that is actively developing and integrated into all spheres of human activity. There are many methods of creating real objects with 3D models. One of the most common is FDM (Fused Deposition Modelling) or FFF (Fused Filament Fabrication) 3D plastic printing due to availability and practicality. FDM (FFF) modeling involves creation of three-dimensional objects by applying successive melt-layers of thermoplastic materials, which are extruded from a temperature-controlled nozzle, according to a digital model. 
Despite availability of the 3D-printing technology it has limited and specialized applications. There are some disadvantages in this three-dimensional printing technology - low speed, limited number of plastic types, which does not allow the creation of products with the admired characteristics, limitations in size, etc. One of the directions of improving the technology of 3D printing by extrusion is the development of polymer composite materials with previously predicted special properties and creation of a filament from them for 3D printing. These materials include electroactive polymer nanocomposites based on thermoplastics with the addition of conductive fillers (graphite, carbon black and metal powders, etc.).
The purpose of the work was to study the effect of the filler nature on the electrical properties of polymer composites and to obtain conductive polymer nanocomposites for production of the filament with the necessary set of technological and electrical properties for 3D printing processing.