Structure and properties enhancement in poly(phenylene sulfide) melt spun fibers. III. Effect of two zone drawing and annealing

Abstract

This article discusses the enhancement of structure and morphology of PPS fibers by annealing and two zone draw‐annealing. Also investigated is the comparison between fiber morphology and properties achieved by single zone draw‐annealing vis‐à‐vis extended annealing and two zone draw‐annealing. Annealing of undrawn as‐spun fibers yields tenacities around 4.5 gpd (grams/denier). It is shown that when compared with one zone drawing, two zone drawing improves PPS fibers' drawability and enhances the tensile properties significantly. Fibers spun from high molecular weight PPS resins, when drawn and annealed under optimum processing conditions during two zone draw‐annealing, possess tenacities around 6 gpd. A model for the fiber structure is proposed based on the morphological studies. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012

Modified Crystallization in PET/PPS Bicomponent Fibers Revealed by Small-Angle and Wide-Angle X-ray Scattering

“…This can be interpreted as the result of a larger strain rate in the PPS component. In monocomponent PPS fibers, such a high orientation is usually only available after additional drawing and annealing processes. , …”

“…In monocomponent PPS fibers, such a high orientation is usually only available after additional drawing and annealing processes. 8,10 Structural differences between homobicomponent and heterobicomponent fibers reflect the mutual influence of the components in a heterobicomponent fiber on their thermal profiles along the spinline. The structure formation of the component that solidifies first (PPS) is enhanced due to higher drawing strain.…”

“…Although a vast amount of literature is available on the structure determination of PET films or fibers by 2D SAXS patterns, − there are only a few publications on the structure determination of PPS films or fibers by circular integration of 2D SAXS patterns. − Few publications deal with the structure of coated fibers or polymer blends. , However, to our knowledge, there are no publications revealing anisotropic 2D SAXS patterns of core/sheath bicomponent fibers.…”

Ultra-SAXS observation of fibril-sized structure formation after the necking of poly(ethylene terephthalate) and poly(phenylene sulfide) fibers

“…The structure and properties of poly(phenylene sulfide) (PPS) have also been studied [14][15][16][17][18]. PPS can easily form a rigid amorphous phase [19] because of its rigid molecular chain compared with that of PET, and there is little difference between the crystal and amorphous regions.…”

Influence of Molecular Orientation on the Melting Behavior of Poly(phenylene sulfide) Fibers

“…Detailed investigation of process-structure-property relationship in melt spun PPS fibers was conducted by us, and findings are reported in our recent publications [14][15][16].…”