EXPERIMENTAL INVESTIGATIONS FOR DEVELOPMENT OF BIOCOMPATIBLE FEEDSTOCK FILAMENT COMPRISING OF PVC, PP AND HAp FOR FDM by Nishant Rajan
Twin-screw extrusion (TSE) is one of the commercially established processes for reinforcement of metallic/non metallic/ ceramic fillers in polymer matrix. In this study, biocompatible feedstock filament has been prepared (in-house) for commercial fused deposition modelling (FDM) setup with biocompatible grade polymers, namely: polyvinyl chloride (PVC) and polypropylene (PP) which is reinforced with the Hydroxyapatite (HAp). In this study, mechanical, thermal and metallurgical properties have been established and best-feed stock filament wire for development of partial/complete denture on the FDM with functionally graded surfaces properties have been recommended for future applications. The process parameters were optimized using Minitab software based on Taguchi L18 orthogonal array and results are supported by photomicrographs.