The Surface Composition and Energetics of Type A Graphite Fibers.

Abstract

This report documents the results of an in-house program to determine what type of interactions occur between graphite reinforcing fiber and the polymeric matrix in advanced composites and how these interactions effect interfacial mechanical properties and durability. Surface treatments applied to Type A fiber of PAN-based material increase the surface energetics as measured by krypton adsorption on 30% of the surface. In addition, the affinity of the treated surface is increased for adsorption of typical ambient gases over the untreated surface by a factor of eight. Finally, the surface of this fiber contains a significant amount of sodium which affects the fiber surface properties.

Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1976
Accession Number
ADA034203

Entities

People

  • Judith A. Mescher
  • Lawrence T. Drzal
  • William L. Baun

Organizations

  • Air Force Research Laboratory

Tags

DTIC Thesaurus Topics

  • Adsorption
  • Composite Materials
  • Graphitic Materials
  • Materials
  • Mechanical Properties
  • Physical Properties
  • Resilience
  • Roughness
  • Strength (Mechanics)
  • Surface Finishing
  • Surface Properties

Readers

  • Electrochemical Engineering/ Fuel Cell Technologies
  • Reinforced Composite Materials