Open AccessPolyhydroxybutyrate/polylactic acid blends: An alternative feedstock for 3D printed bone scaffold model
Author(s) -
Jiratchaya Surisaeng,
Warrayut Kanabenja,
Nichaphat Passornraprasit,
Chuanchom Aumnate,
Pranut Potiyaraj
Publication year - 2022
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2175/1/012021
Subject(s) - polylactic acid , polyhydroxybutyrate , materials science , fused filament fabrication , polypropylene , extrusion , raw material , scaffold , 3d printing , compatibility (geochemistry) , composite material , fabrication , lactic acid , biodegradable polymer , chemical engineering , polymer , chemistry , biomedical engineering , organic chemistry , medicine , alternative medicine , pathology , biology , bacteria , genetics , engineering
In this research, we developed 3D printing filaments from polyhydroxybutyrate (PHB)/poly(lactic acid) (PLA) blends to further its use in a fused filament fabrication (FFF) 3D printing technique as an alternative feedstock for manufacturing bone scaffold model. The filaments were fabricated with blending ratios of PHB/PLA at 100/0, 90/10, 70/30, 50/50, 30/70, 10/90, and 0/100 %wt. using an extrusion process. Furthermore, 10 phr of polypropylene glycol (PPG) was added as a processing aid to enhance the processability. The results of MFR showed that the suitable temperature for 3D printing of all blended filaments is 190 °C. The changes in thermal properties indicate the partial compatibility between PHB and PLA in the blends. PLA plays a vital role in improving the mechanical properties of PHB. 3D printing filament from PHB/PLA blends has been successfully developed.