Mechanical and Thermal Characterization of Fused Filament Fabrication Polyvinylidene Fluoride (PVDF) Printed Composites

摘要

Polyvinylidene fluoride (PVDF) is a polymer that offers a variety of desirable material properties. Its high resistance to corrosive acids and its capability to show piezoelectric behavior are some of these properties that are attractive to many industrial applications. Three-dimensional printing of PVDF is extremely difficult using fused filament fabrication processes due to the large coefficient of thermal expansion of homopolymer PVDF, which results in substantial component warping. In the present work, the effect of zirconium tungstate microparticles as a secondary phase within a PVDF matrix is experimentally studied. Viable printing parameters and the corresponding mechanical and thermal behavior of the PVDF composite structures based on digital image correlation tests are presented.