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Description
Rigoberto Advincula1

1, Case Western Reserve University, Cleveland, Ohio, United States

Motor components capable of lightweight operation are especially important for engine components as well as household devices. The ability to 3D print this parts with metals is given. However, a challenge is to prepare new and unconventional materials based on polymer nanocomposites. As such, one needs to access conductive materials using 3D printing techniques: the ideal is access to the next generation of conductive polymer composites. In this talk, we present a facile method to prepare conductive polymer-based nanocomposite parts by: 1) Polyurethane elastomers, coated with carbon nanotubes (CNT), 2) the assembling carbon black or graphene oxide on the surface of commercially available polymer powder and using scanning laser sintering (SLS) as a method of choice. CNT can be used to coat elastomeric actuators. For the carbon- black additive this involves simple mixing. However, for graphene oxide, the reduction towards graphene oxide nanosheets render the materials and printed objects, electrically conductive. The properties of the nanocomposites can be determined based on chemical, mechanical, and electrical characterization and subsequently used as the feedstock to 3D print metal-free electrically conductive components. This simple approach is thus ideal for accessing a number of conductive polymer structures by readily accessible, and standard 3D printing techniques.

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