Innovative preparation processes and structural characteristics of 3D printable polymer-based nanocomposites

Abstract

This work details the synthesis and characterizations of PVA-graphene platelets and PANI-nanodiamonds nanocomposites as suitable materials to be used as inks for additive manufacturing processes by 3D methodology. The PVA-based nanocomposites are generated by an optimized synthetic route, in which the chemical crosslinking of PVA with maleic anhydride is realized in the presence of dispersed graphene platelets. The PANI-based nanocomposites are obtained starting from aniline monomer by an “in situ” polymerization process carried out in a dispersion of purified nanodiamonds. The 3D layer-by-layer printing of polymer-based nanocomposites colloidal dispersion allows to produce well-shaped solid objects that are promising as scaffolds for biomedical applications.This work details the synthesis and characterizations of PVA-graphene platelets and PANI-nanodiamonds nanocomposites as suitable materials to be used as inks for additive manufacturing processes by 3D methodology. The PVA-based nanocomposites are generated by an optimized synthetic route, in which the chemical crosslinking of PVA with maleic anhydride is realized in the presence of dispersed graphene platelets. The PANI-based nanocomposites are obtained starting from aniline monomer by an “in situ” polymerization process carried out in a dispersion of purified nanodiamonds. The 3D layer-by-layer printing of polymer-based nanocomposites colloidal dispersion allows to produce well-shaped solid objects that are promising as scaffolds for biomedical applications.