标准编号:ISO 11358-2:2005

中文名称:塑料 聚合物热重分析法(TG)-第2部分:活化物的测定

英文名称:Plastics — Thermogravimetry (TG) of polymers — Part 2: Determination of activation energy

发布日期:2005-11

标准范围

This part of ISO 11358 specifies a method for the determination of the activation energy, Ea, in the Arrhenius equation for the decomposition of polymers using a thermogravimetric technique. The method is applicable only if the reaction proceeds by a single mechanism. It is applicable to multistage reactions if they consist of clearly separated single-stage steps.NOTE The term activation energy is more suited to describing the kinetics of gas-phase reactions. When chemical reactions start from the solid state as in this part of ISO 11358, this parameter is nevertheless used for practical purposes.

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