## Science and technology of fibers and related materials: proceedings of the Fiber Society 50th Anniversary Technical Conference held in Princeton, New Jersey, August 19-23, 1990 |

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Page 145

STOKES-EINSTEIN The Stokes-Einstein equation relates the diffusion constant D

for a sphere in a liquid medium to the

of the sphere a: D = AT/(6ira7j) (1) where k is the Boltzman constant and T is the ...

STOKES-EINSTEIN The Stokes-Einstein equation relates the diffusion constant D

for a sphere in a liquid medium to the

**viscosity**of the medium 77 and the radiusof the sphere a: D = AT/(6ira7j) (1) where k is the Boltzman constant and T is the ...

Page 149

... understand diffusion in fibers must have to do with some unaccounted for factor

; e.g., as in the Hori equation, diffusion rate would depend on the fraction of

material in the liquid state available for diffusion as well as on the apparent

... understand diffusion in fibers must have to do with some unaccounted for factor

; e.g., as in the Hori equation, diffusion rate would depend on the fraction of

material in the liquid state available for diffusion as well as on the apparent

**viscosity**.Page 150

At any temperature the observed diffusion constant should depend on the ratio X/

ti, i.e., the fraction of material in the rubbery state divided by its

be the temperature-independent modulus of the glass fraction and Er the ...

At any temperature the observed diffusion constant should depend on the ratio X/

ti, i.e., the fraction of material in the rubbery state divided by its

**viscosity**. Let Egbe the temperature-independent modulus of the glass fraction and Er the ...

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### Contents

Technological Developments in ManMade Fibers and Related | 33 |

Morphology and Near Tm Behavior of High Performance Ultrahigh | 67 |

Properties Structures and Temperature Limitations | 87 |

Copyright | |

22 other sections not shown

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1991 John Wiley 3-D braided acrylic fiber alginate fiber amorphous analysis angle Applied Polymer Symposium as-spun axial behavior bending recovery benzyl alcohol birefringence blend break carbon fibers cellulose chain cold drawing compression contact angle cotton fibers crystalline crystallization curve decrease deformation density determined developed diameter distribution DMDHEU draw ratio dye diffusion effect elongation energy experimental fabric failure fiber length fibers spun filament film finish frictional heat treatment impact increase Kevlar liquid m/min material matrix measured mechanical properties modulus molecular molecules nylon obtained orientation parameters PET fibers polyester polyester fibers Polymer Symposium 47 preforms recovery length sample scanning shape parameter shear shown in Figure silicon carbide solvent Spectra composite spinneret spinning speed strain rate stress structure surface Table take-up tenacity tensile tensile strength Text textile thermal treated twist UHMWPE untreated values variability viscosity wettability X-ray diffraction yarn