Accession Number:

AD0294885

Title:

THE KINETICS OF THERMAL DEGRADATION OF CHARRING PLASTICS. I. GLASS REINFORCED PHENOLFORMALDEHYDE

Descriptive Note:

Corporate Author:

GENERAL ELECTRIC CO PHILADELPHIA PA MISSILE AND SPACE DIV

Personal Author(s):

• Friedman, Henry L.

Report Date:

1961-08-01

Pagination or Media Count:

37.0

Abstract:

A technique was devised for obtaining rate laws and kinetic parameters which describe the thermal degradation of plastics from thermogravimetric analysis data. The method is based on the intercomparison of experiments which were performed at different linear rates of temperature rise. The method was applied to a fiberglass reinforced phenol-formaldehyde resin. The kinetic equation that was thus derived was checked by a variety of techniques, including a comparison with constant temperature data that were available in the literature. The tests indicated that the equation was applicable to a major part of the degradation process.

Descriptors:

• *PLASTICS
• *REINFORCING MATERIALS
• *PHENOLIC PLASTICS
• *GLASS TEXTILES
• DEGRADATION
• REACTION KINETICS
• THERMODYNAMICS
• FORMALDEHYDE
• PYROLYSIS
• THEORY
• GRAVIMETRIC ANALYSIS
• HEAT

Subject Categories:

• Laminates and Composite Materials
• Plastics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE