A CORRELATION OF POLYMERIC STRUCTURE TO ABLATIVE PROPERTIES

Abstract

The work contained in this report encompasses an attempt to correlate the chemical and physical structure of a polymer with its ablative performance. A broad range of epoxy resins and curing agents were employed as model systems. Various tools such as 'alpha rod' testing, thermogravimetric analysis, crosslink density studies, and infrared-red spectroscopy were used in making this correlation. The epoxy novolac type resin performed the best of all the epoxy resins in the 'alpha rod' oxy-acetylene torch test while nadic methyl anhydride performed as the best curing agent for epoxy resins under these ablative conditions. The use of a refractory filler such as SiO2 was found to be necessary for good performance. The mechanism through which this filler aids the ablative properties of materials is explained with the help of photomicrographs.

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Document Details

Document Type
Technical Report
Publication Date
Apr 29, 1965
Accession Number
AD0467049

Entities

People

  • Gerald J. Fleming

Organizations

  • Naval Ordnance Laboratory

Tags

Communities of Interest

  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Ablative Materials
  • Acetylenes
  • Alkynes
  • Anhydrides
  • Body Weight
  • Chemistry
  • Contracts
  • Curing Agents
  • Epoxy Resins
  • Materials
  • Physical Properties
  • Plastics
  • Polymers
  • Reinforced Plastics
  • Resins
  • Spectroscopy
  • Thermal Stability

Fields of Study

  • Materials science

Readers

  • Polymer Science and Engineering.
  • Reinforced Composite Materials