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Normas BSI – AENOR
20/30406599 DC

20/30406599 DC

BS ISO 11358-3. Plastics. Thermogravimetry (TG) of polymers. Part 3. Determination of the activation energy using the Ozawa-Friedman plot and analysis of the reaction kinetics

Fecha:
2020-05-12 /Definitive
Comité:
PRI/21
Equivalencias internacionales:

ISO/DIS 11358-3

Resumen:

This document specifies an analysis method for determining the activation energy using the Ozawa-Friedman plot. It also specifies the preparation of master plots for verification of the reaction kinetics determined by thermogravimetry.

The Ozawa-Friedman plot (logarithm of the rate of mass loss versus the reciprocal of absolute temperature at a given mass loss) is a derivative method that can be applied to data obtained by any mode of temperature change in thermal analysis; e.g. isothermal, constant heating rate, sample-controlled thermal analysis, temperature jump, and repeated temperature scanning.

Keywords:
Thermal stability, Mass, Thermogravimetric analysis, Polymers, Chemical analysis and testing, Mathematical calculations, Plastics, Calibration, Thermal analysis
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