Characterization of Biodegradable Thermoplastic Starch/Poly LacticAcid/NanoClay Filaments Used in ۳D Printing

Pollution from petroleum-based polymers has led to serious environmental problems. For this reason, biopolymers can be a good alternative to petroleum-based polymers. In this research, the feasibility of fabricating the nanocomposite FDM filaments of biodegradable polymers with novel formulation was assessed. To do this, polymer alloys of the Poly LacticAcid (PLA) and Thermoplastic starch (TPS) consisting of corn starch and glycerol as well as compatiblizer reinforced with nanoclay were used to make ۳D printing nanocomposite filaments. The results indicated that the addition of TPS to PLA based composites leads to a decrease in the tensile strength and Young's modulus of the specimens, while positively affecting the elongation at break due to plasticizer. The findings further showed the dependence of mechanical properties on the Nanoclay content.

کلیدواژه ها:

FDM Method ، Filament ، Biodegradable nanocomposite ، Mechanical properties