Evaporation and Rheology Chart the Processability Map for Centrifugal Force Spinning

نویسندگان

چکیده

We show that poly(ethylene oxide) (PEO) solutions formulated using solvent mixtures of acetonitrile (AcN) and water can be centrifugally spun into fibers. find spinnability fiber morphology depend on choice if polymer concentration, solution shear rheology, the number entanglements, extensional relaxation time, parameters for centrifugal spinning are nearly matched. obtain an intrinsic map volatile entangled (VE) by contrasting measured time with evaporation rate determined thermogravimetric analysis (TGA). Finally, we chart a processability plotting closed-cell dripping-onto-substrate (DoS) rheometry, against flight (from nozzle to collector) scaling both timescales time. The incorporates influence speed, diameter, distance from collector, ambient conditions, properties, establishing imitable paradigm distinguishing between spinnable sprayable formulations.

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ژورنال

عنوان ژورنال: Macromolecules

سال: 2021

ISSN: ['0024-9297', '1520-5835']

DOI: https://doi.org/10.1021/acs.macromol.1c01799