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Abstract

A comparative evaluation was carried out between two different accelerated thermal aging tests for estimating thermo-oxidative stability (Tos) in advanced composite materials as part of an effort to determine if either could be used as a fast but reliable predictive method for assessing new materials. One test (kinetic mapping) was based on data obtained from highly accelerated thermogravimetric analysis (TGAo) techniques commonly used in matrix polymer synthetic work, the other was based on weight loss during medium-term aging at temperatures closer to the use temperature, and well below Ta. No correlation was found between the two sets of results when the measurements were carried out on a number of commercial as well as some new experimental resin and composite samples. Reasons for the discrepancies are advanced.

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Thermal stability predictions of polymeric composites: comparison of medium-term weight loss at 250C with a kinetic mapping procedure

Abstract

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