Uniaxial Draw of Poly(Ethylene Oxide) by Solid State Extrusion.

Abstract

Ultradrawn filaments of poly (ethylene oxide) (PEO) have been prepared by a solid-state coextrusion in an Instron capillary rheometer. Two different molecular weights, 300,000 and 4,000,000 were evaluated. Properties have been examined as a function of uniaxial draw ratio. The drawn filaments of PEO exhibit extremes of melting point, percent crystallinity, birefringence, and tensile modulus. Features of a PEO filament with a draw ratio of 32 are a 72 deg C DSC melting point and a crystallinity of 94.0%, both measured at a scan 2.5 deg C/min. The corresponding birefringence is 0.035 and a Young's modulus of 3.5 GPa. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Aug 15, 1983
Accession Number
ADA141923

Entities

People

  • B. S. Kim
  • R. S. Porter

Organizations

  • University of Massachusetts Amherst

Tags

DTIC Thesaurus Topics

  • Crystal Lattices
  • Engineering
  • Ethylene Oxide
  • Filaments
  • Films
  • Heat Energy
  • Light Sources
  • Massachusetts
  • Mechanical Properties
  • Melting Point
  • Modulus Of Elasticity
  • Molecular Weight
  • Physical Properties
  • Polymers
  • Stresses
  • Tensile Modulus
  • Tensile Strength

Fields of Study

  • Materials science

Readers

  • Polymer Science and Engineering.
  • Reinforced Composite Materials