Continuous Spun Fibers via Centrifugal Force Spinning

Centrifugal Force Spinning (CFS) provides an alternative fiber spinning method from other well-developed fiber spinning methods, and allows for quick and efficient manufacture of continuously spun fibers. In this contribution we investigate how polymer solution properties such as the presence of polymer entanglements, extensional relaxation time, and evaporation rate affect the fiber spinning process. These parameters are compiled through torsional rheometry, Dripping-onto-Substrate (DoS) protocols, and thermogravimetric analysis (TGA). Paired together with fiber spinning process parameters, these properties are used to provide an optimized processability map, predicting fiber formation and morphology. The fibers produced are analyzed through SEM imaging and the mechanical fiber mat properties are measured.