Development of Pure Poly Vinyl Chloride (PVC) with Excellent 3D Printability and Macro? and Micro?Structural Properties

Unmodified polyvinyl chloride (PVC) has low thermal stability and high hardness. Therefore, using plasticizers as well stabilizers is inevitable, while it causes serious environmental health issues. In this work, for the first time, pure food-grade PVC with potential biomedical applications processed 3D printed. Samples are successfully printed different printing parameters, including velocity, raster angle, nozzle diameter, layer thickness, their mechanical properties investigated in compression, bending, tension modes. Scanning electron microscopy also used to evaluate bonding microstructure of layers. Among mentioned angle velocity influence significantly, whereas thickness diameter a little effect. Images from scanning reveal that greatly affects final part's quality regarding defective voids rasters’ bonding. The maximum tensile strength 88.55 MPa achieved, which implies superiority 3D-printed compared other commercial filaments. This study opens an avenue additively manufacture second most-consumed polymer cost-effective high-strength features.