Effects of Moisture on Chemical Interactions at a Polymer-Fiber Interface.

Abstract

The objective of this investigation was to determine the effects of moisture and temperature on chemical interactions at the interface of a specific graphite fiber/epoxy resin composite. Studies to evaluate these effects comprised the determination of the number and type of surface sites on a Celion R GY-70 graphite fiber, that react with epoxy groups; the measurement of the rate of degradation of these sites under dry and humid conditions at elevated temperatures; and a comparison of these rates with rates of the irreversible loss of interface properties of graphite fiber/epoxy resin composites. From these results it was concluded that cleavage of fiber/resin interface bonds may be discounted as the source for the irreversible strength losses experienced in graphite fiber/epoxy resin composites.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1977
Accession Number
ADA054460

Entities

People

  • A. Diedwardo
  • D. E. Stuetz
  • G. Hardy
  • O. D. Recca
  • R. E. Sullivan

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Body Weight
  • Chemical Analysis
  • Chemical Bonds
  • Chemical Synthesis
  • Chemistry
  • Composite Materials
  • Failure Mode And Effect Analysis
  • Glass Transition Temperature
  • Graphitic Materials
  • Mass Spectrometry
  • Material Degradation Processes
  • Materials Laboratories
  • Materials Science
  • Mechanics
  • Physical Properties
  • Spectrometry
  • Spectroscopy

Readers

  • Materials Science (Mechanical Engineering).
  • Reinforced Composite Materials