EVALUATION OF EXPERIMENTAL POLYMERS

Abstract

Thermogravimetric analysis (TGA) in dry N2 is considered in detail as a method for comparing the intrinsic thermal stabilities of experimental polymers on both empirical and fundamental grounds. Two procedural decomposition temperatures are defined and discussed. One, the "differential procedural decomposition temperature" (dpdt), is based on the locations of recognizable curve features, while the second, the "integral procedural decomposition temperature" (ipdt), is based on areas under the curve. Kinetic analysis of volatilization data is discussed on the basis of both the Arrhenius rate equation and its integral. Two quasi-kinetic methods are discussed, one based on empirical time-temperature superposition; the other, on an empirical relationship between isothermal times and temperatures in TGA. Two corroborative test methods, differential thermal analysis and thermoparticulate analysis are discussed briefly. TGA curves and tables of data on 54 polymers are presented.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1960
Accession Number
AD0243387

Entities

People

  • Charles D. Doyle

Organizations

  • General Electric

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Alkenes
  • Anhydrides
  • Biomedical And Dental Materials
  • Body Weight
  • Composite Materials
  • Differential Thermal Analysis
  • Equations
  • Fluoropolymers
  • Geometry
  • Materials
  • Materials Laboratories
  • Materials Testing
  • Polymeric Films
  • Resins
  • Test Methods
  • Thermal Analysis

Readers

  • Calculus or Mathematical Analysis
  • Combustion science or combustion engineering.
  • Systems Analysis and Design