Age-Life Prediction of Nylon 66 Parachute Materials. Part 2. Changes in the Chemical and Physical Properties of Materials on Aging

Abstract

Changes in the chemical properties of nylon 66 taffeta material and olive drab ripstop material on accelerated thermal aging are reported. The thermooxidative changes that occurred were used to measure rates and degree of polymer degradation. Relationships between tensile strength, molecular weight and other chemical changes were established and found to be applicable for in- service parachutes. The nylon 66 materials were also examined for photochemical degradation after outdoor exposure. No photoendering was found for the dyed material and the difference in the degradation rates was attributed to different stabilizers being used during fibre manufacture. This is an Australian Department of Defense document.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1985
Accession Number
ADA156909

Entities

People

  • G. A. George
  • G. T. Egglestone

Organizations

  • Defence Science and Technology Group

Tags

Communities of Interest

  • Autonomy
  • Human Systems

DTIC Thesaurus Topics

  • Chemical Analysis
  • Chemistry
  • Department Of Defense
  • Glass Transition Temperature
  • Materials
  • Mechanical Properties
  • Molecular Weight
  • Molecules
  • Organic Chemistry
  • Parachutes
  • Physical Properties
  • Polymer Degradation
  • Polymers
  • Tensile Strength
  • Thermal Analysis
  • Transition Temperature
  • Viscosity

Fields of Study

  • Materials science

Readers

  • Chemistry (specifically Chemical Fluorescence)
  • Polymer Science and Engineering.