Arizona State University,
Keywords: composites, 3D printing, nanoscale
Summary:New additive manufacturing differs from conventional manufacturing, including machining, shredding, extruding, pelletizing, and molding. The general 3D printers are based on resins (stereolithography (SLA), digital light processing (DLP)), filaments (fused deposition modeling (FDM) and direct ink writing (DIW)), powders (selective laser sintering (SLS)), and inks (inkjet). This research will focus on a new 3D printing based on multiple material feedstocks. During the ink deposition, the multiple feedstocks will be re-arranged for layer multiplying so that the printing resolutions will be improved without negatively impacting the manufacturing rates. A few different polymers and nanoparticles will be demonstrated via this multiphase direct ink writing (MDIW) for different applications, including structural composites, surface patterning, soft robotics, and fiber generations for smart textiles. Beyond the demonstration, general polymers and fillers are compatible with our MDIW for uses in structural support, thermal exchangers, microelectronics, optical metasurfaces, and biomedical scaffolds.