The use of 3D printing for scientific and industrial applications is rapidly increasing and, simultaneously, is growing the interest toward printable smart materials. It is known that using a conductive filler, e.g. nanoparticles, metal powders or composite polymers, it is possible to produce a more electrically conductive printable material. The PEDOT:PSS polymer has been used extensively, from bioelectronics to energy storage devices, for its conductivity and biocompatibility. In this work, a highly electrically conductive resin for Stereolithography was developed using a dispersion of PEDOT particles, extracted from Clevios(TM) PH1000 through a simple separation process, in a PEGDA matrix. The resin composition was optimized in terms of photoinitiator, surfactant and filler concentration. Furthermore, optimal printing parameters were determined for this composite resin, obtaining a printed object with appreciable electrical conductivity (0.05 S cm-1) and mechanical properties (Young modulus 21 MPa).
A novel highly electrically conductive composite resin for stereolithography
Cocuzza Matteo;Marasso Simone L;
2019
Abstract
The use of 3D printing for scientific and industrial applications is rapidly increasing and, simultaneously, is growing the interest toward printable smart materials. It is known that using a conductive filler, e.g. nanoparticles, metal powders or composite polymers, it is possible to produce a more electrically conductive printable material. The PEDOT:PSS polymer has been used extensively, from bioelectronics to energy storage devices, for its conductivity and biocompatibility. In this work, a highly electrically conductive resin for Stereolithography was developed using a dispersion of PEDOT particles, extracted from Clevios(TM) PH1000 through a simple separation process, in a PEGDA matrix. The resin composition was optimized in terms of photoinitiator, surfactant and filler concentration. Furthermore, optimal printing parameters were determined for this composite resin, obtaining a printed object with appreciable electrical conductivity (0.05 S cm-1) and mechanical properties (Young modulus 21 MPa).I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.