▎ 摘　　要

NOVELTY - Developing nanoengineered acrylonitrile butadine styrene (ABS)-multiwall carbon nanotubes (MWCNTs) nanocomposite using fused deposition modeling (FDM) by three-dimensional (3D) printing with the use of different infill patterns with different infill %second, comprises: manufacturing a customized 3D printing filament spools by single screw extrusion process with 0.1-0.3 wt.% MWCNTs in natural ABS polymer; direct 3D printing of test specimens with and without in-fill patterns e.g. full honeycomb, grid, rectilinear and triangular and in-fill percentages as 20%, 50%, and 100% of volumes using FDM method; and more wt.% adding nanomaterial which results in decrease in tensile strength of nanocomposites due to the agglomeration of MWCNTs, due to the more addition of MWCNTs, the increase in the brittleness of the nanocomposite is observed and it affects flexural strength, and the nanocomposites with a small addition of MWCNTs (0.1, 0.2 and 0.3 wt %). USE - The method is useful for developing nanoengineered ABS-MWCNTs nanocomposite which is used in automobile application, aerospace application (all claimed) and construction application. ADVANTAGE - The method: provides developed material which showed the conductive range that can be qualifying for many of the applications in automobile and aerospace; selects typical infill pattern with proper infill percentage and wt.% of MWCNTs which gives high tensile strength and also light weight in practical application; provides nanocomposite which has electrical conductivity plays a vital role, as it possess high electrical conductivity; utilizes electroplating which can be done directly on these 3D printed nanocomposite components as material is highly electrically conductive; results nanocomposite that can be possible with other nanomaterials also (e.g. graphene) with the same base material (natural ABS); and provides material with high mechanical and electrical properties. DETAILED DESCRIPTION - Developing nanoengineered acrylonitrile butadine styrene (ABS)-multiwall carbon nanotubes (MWCNTs) nanocomposite using fused deposition modeling (FDM) by three-dimensional (3D) printing with the use of different infill patterns with different infill %second, comprises: manufacturing a customized 3D printing filament spools by single screw extrusion process with 0.1-0.3 wt.% MWCNTs in natural ABS polymer; direct 3D printing of test specimens with and without in-fill patterns e.g. full honeycomb, grid, rectilinear and triangular and in-fill percentages as 20%, 50%, and 100% of volumes using FDM method; and more wt.% adding nanomaterial which results in decrease in tensile strength of nanocomposites due to the agglomeration of MWCNTs, due to the more addition of MWCNTs, the increase in the brittleness of the nanocomposite is observed and it affects flexural strength, and the nanocomposites with a small addition of MWCNTs (0.1, 0.2 and 0.3 wt %), the polymeric nanocomposites exhibit significant improvements in the electrical conductivity with an amount of 13.72%, 42.85% and 278.48% for NABS with 0.1, 0.2 and 0.3 wt.% MWCNTs in natural ABS (NABS) respectively. Increase in wt.% of MWCNTs, results in increased conductivity.