A Computer Method for the Thermogravimetry of Ablative Plastic Materials. Empirical Kinetics and Thermogram Construction.

Abstract

This report reviews the primary computer code (TRIM) which is used to calculate the empirical kinetic parameters from the integral weight and temperature values derived from the experimental thermogram. The magnetic tape/plotter subroutine (PAR-3) IS THEN DISCUSSED IN DETAIL. This subroutine constructs a thermogram from parameters generated by the code (TRIM). An analysis was made for a polyimide resin run at four rates of heating for purposes of illustration. Calculated and experimental residual weights were compared at selected temperatures. The values generally agreed within 1% over most of the thermogram with a maximum error of 2 -6%. There was a trend for lower maximum error at the higher heating rates. (Author, modified-PL)

Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1970
Accession Number
AD0716825

Entities

People

  • N. J. Olson

Organizations

  • University of Dayton Research Institute

Tags

DTIC Thesaurus Topics

  • Composite Materials
  • Computer Programs
  • Computers
  • Construction
  • Films
  • Integrals
  • Kinetics
  • Macromolecules
  • Magnetic Tape
  • Materials
  • Molecules
  • Plastics
  • Polyimide Resins
  • Polymers
  • Procedures (Computers)
  • Residuals
  • Resins

Readers

  • Combustion science or combustion engineering.
  • Computational Modeling and Simulation
  • Polymer Science and Engineering.