Combustibility of Cyanate Ester Resins

Abstract

Flaming and nonflaming combustion studies were conducted on a series of polycyanurates to examine the effect of chemical composition and physical properties on the fire behavior of these cross-linked, char-forming thermoset polymers. Heats of complete combustion of the polymer and fuel gases were determined by oxygen bomb calorimetry and pyrolysis-combustion flow calorimetry, respectively. Fire calorimetry experiments were conducted to measure the heat released, the rate of heat release, and the smoke generation in flaming combustion. Fire response parameters derived from the data include the thermal inertia, heat of gasification, effective heat of combustion, and combustion efficiency. Halogen-containing polycyanurates exhibited extremely low heat release rate in flaming combustion compared to the hydrocarbon resins, yet produced significantly less smoke and comparable levels of carbon monoxide and soot.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 2002
Accession Number
ADA405004

Entities

People

  • Richard E. Lyon
  • Richard Walters
  • S. Gandhi

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Calorimeters
  • Carbon Monoxide
  • Chemical Reaction Properties
  • Chemical Synthesis
  • Chemistry
  • Combustion
  • Combustion Products
  • Composite Materials
  • Dielectric Gases
  • Fires
  • Gaseous Fuels
  • Heat Energy
  • Heat Of Combustion
  • Heat Transfer
  • Hydrocarbons
  • Materials Laboratories
  • Pyrolysis

Readers

  • Fire Suppression Systems Design.
  • Organic Chemistry
  • Rocket Propulsion.