Behavior of a stationary jet of concentrated polyacrylonitrile solution
I. Yu. Skvortsov,
M. S. Kuzin,
P. S. Gerasimenko
et al.
Abstract:The fiber formation process via the uniaxial stretching jet of concentrated polyacrylonitrile solutions in dimethyl sulfoxide has been investigated. Data on viscoelastic properties obtained by oscillatory shear rheometry have been compared with the evolution of jet thinning during stretching. It was found that at a fixed temperature and moderate air humidity (20%), the jet thinning process involves an initial rapid viscous thinning followed by phase separation and the formation of solid fibers coated with solv… Show more
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