Effect of Annealing on the Ferroelectric Behavior of Nylon 7 and Nylon 11

Abstract

We have recently discovered that melt quenched and cold- drawn nylon 11 films exhibit very clear ferroelectric hysteresis behavior. In the present study, a remanent polarization as high as 86 mC/m2 has been found in nylon 7 samples; this is significantly higher than that usually observed in poly(vinylidene fluoride) films. The effect of annealing on the electric displacement, D, vs. electric field, E, characteristics of both nylon 11 and 7 films have been studied and show an increased coercive field (62 to 115 MV/m for nylon 11 and 79 to 97 MV/m for nylon 7) and a decreased remanent polarization (51 to 17.3 mC/m2 for nylon 11 to 86 to 70.5 mC/m2 for nylon 7) with increasing annealing temperature, 25 C to 145 C.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1991
Accession Number
ADA236808

Entities

People

  • B. A. Newman
  • J. I. Scheinbeim
  • J. W. Lee
  • Y. Takase

Organizations

  • Rutgers University–New Brunswick

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms

DTIC Thesaurus Topics

  • Crystal Structure
  • Crystals
  • Depolarization
  • Dielectric Permittivity
  • Diffraction
  • Electric Fields
  • Glass Transition Temperature
  • Heat Energy
  • Materials
  • Materials Science
  • Measurement
  • Mechanical Properties
  • Mechanics
  • Phase Transformations
  • Polarization
  • Transition Temperature
  • X-Ray Diffraction

Readers

  • Materials Science and Engineering.