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TESTING AND MEASURING Expanded Application of ISO 11358-2 to Obtaining Activation Energy of thermal Degradation of Polyethylene

Von Masayuki Ito, Tokyo, Japan 0 min Lesedauer

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Quarzwerke GmbH | HPF The Mineral Engineers

The thermogravimetric analysis was applied to obtain the activation energy of the thermaldegradation of LLDPE containing the antioxidant reagent (AO) from 0.0 phr to 0.25 phr. The heating rate was from 0.1 K/min to 5.0 K/min.

TG curves of LLDPE in which any antioxidant reagent did not add in this experiment. The heating rate was from 0.1 K/min to 5 K/min.(Bild:)
TG curves of LLDPE in which any antioxidant reagent did not add in this experiment. The heating rate was from 0.1 K/min to 5 K/min.
(Bild:)

The polymer has been used for a long period of time at ambient temperature or moderately higher temperature. When the deterioration of the polymer is caused by the oxidative thermal degradation, the short time test is performed at higher temperatures with considering the activation energy of thermal degradation of the sample.