▎ 摘　　要

NOVELTY - A powder material comprises a set of particles (10) having size distribution, each of the particles having polymeric matrix (12) containing loading of graphene nanoplatelets (14). USE - A powder material for use in selective laser sintering (SLS) (claimed). ADVANTAGE - The inclusion of graphene provides an additional benefit during the printing process, as for most SLS systems in that during the printing stage/the entire bed of powdered material is heated to allow for better melt flow and to minimize the energy gap that the laser must overcome during the print process. The use of graphene has demonstrated the ability to increase the thermal conductivity of polymers through conductive and resistive methods, and allows for a better range of heating at the bed and in the print area. The resulting particles provide superior articles produced by SLS, as compared to using like size polystyrene lacking graphene content. Uniform packing densities that create good prints of three-dimensional articles with a decrease in voids and incomplete infill can be produced. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: (1) formation of powder material which involves producing particles by melt spraying; and (2) formation of article which involves exposing the powder material to selective laser sintering conditions, allowing sufficient time under the selective laser sintering conditions to induce fusion between two contiguous particles of powder material to form a fused mass, and repeating the exposing and allowing steps with positional variation to fuse additional particles to the fused mass to form the article. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of a particle tailored for usage as a three-dimensional printing precursor. Particles (10) Polymeric matrix (12) Graphene nanoplatelets (14)