Wettability properties of 3D printable polymers and 3D printed structures for engineering applications

M. Pearson, Y. Bu, J. Brandon, B. Khoda, Z. Lin
North Dakota State University, United States

Keywords: 3D printing, additive manufacturing, 3D printable polymer, Wettability properties, hydrophobic and oleophobic properties

3D printing, also known as, additive manufacturing enables direct fabrication of physical objects as the building blocks. The 3D printing is recently an emerging technique to promote the development of new multifunctional material/structures beyond basic mechanical property from natural materials for broader engineering applications, including anti-fouling or water/oil separation. In this study, we attempted to explore the wettability properties of 3D printable polymers, including acrylonitrile butadiene styrene (ABS), polylactic acid (PLA), polyamide (PA), polycarbonate (PC). Both pre-spooled polymer filament and raw or granular polymer were used in this research. With the prepared 3-D printed specimens, the characterization was conducted through the contact angle and sliding angle tests for understanding of their wettability properties (hydrophobic and oleophobic properties), potentially for new tailored structures with properties of anti-fouling or water/oil separation.