Accession Number:

AD0716825

Title:

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

Descriptive Note:

Technical rept. Mar 69-Mar 70,

Corporate Author:

DAYTON UNIV OHIO RESEARCH INST

Personal Author(s):

Report Date:

1970-10-01

Pagination or Media Count:

49.0

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 tapeplotter 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

Subject Categories:

  • Physical Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE