Dynamic thermogravimetric degradation of poly(3-hydroxybutyrate)/aliphatic–aromatic copolyester blends

阅读量:

56

作者:

M ErcegTonka KovacicIvka Klaric

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摘要:

The thermal degradation of poly(3-hydroxybutyrate)/aliphatic-aromatic copolyester (PHB/AAC) blends was investigated by the thermogravimetric method under dynamic conditions (50-650°C) in an inert atmosphere. The characteristics of the TG curves were determined ; some of these characteristics can be used as indicators of the thermal stability of the blend. Kinetic parameters (the apparent activation energy, Ea and pre-exponential factor, A) were calculated after Flynn-Wall-Ozawa and Kissinger methods. It is observed that both Ea and A vary in blends. Between ln A and Ea exists the linear relationship and the apparent compensation effect has been found.

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DOI:

10.1016/j.polymdegradstab.2005.02.014

被引量:

117

年份:

2005

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