Model droplet formation in extensional filament stretching within a Filament Extension Atomizer

Abstract Further innovation in the field of selective laser sintering (SLS) is strongly connected to availability new materials since market dominated by polyamide 12 (>90%). The aim this publication develop a descriptive model for droplet formation process Filament Extension Atomizer predict applicability exploit further polymers SLS process. feasibility was tested, investigated and characterized using “Dripping out nozzle” setup uniaxial extension. then observed via high-speed camera imaging classified certain parameters. experiments were carried semi-diluted polyethylene oxide (600–4000 kg/mol), glycerol water solutions as fluids. Driven Plateau-Rayleigh instability, different types spherical droplets various mechanisms demonstrated analyzed. Based on experimental results, predictive derived describe essential