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HomeMaterials Science ForumMaterials Science Forum Vol. 1035Effect of Different Molecular Weight of PEG on the...

Effect of Different Molecular Weight of PEG on the Crystallization Behaviors of Binary Polymer Blends PLA/TPS

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Abstract:

Serial poly (lactic acid) (PLA) and thermoplastic starch (TPS) blends (with a fixed content of 20 wt.% TPS) were prepared by melt extrusion process. The effect of different molecular weight of PEG on the thermal and rheological properties of PLA/TPS blends was studied by the melt ﬂow rate (MFR) and DSC analysis. The results showed that the molecular weight of PEG inﬂuenced the miscibility and crystallization behavior of PLA/TPS blends. Blend added with PEG400 showed a single T_g, and blends with PEG600 provided remarkable improvement of rheological properties with an increase in flow rate to 49.02 g/10 min. 4% content of poly (ethylene glycol) (PEG) can positively contribute to improve crystallization rate of PLA by reducing the melting temperature and cold crystallization temperature.

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Periodical:

Materials Science Forum (Volume 1035)

Pages:

918-924

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.1035.918

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Online since:

June 2021

Authors:

Teng Zhang*, Su Mei Zheng

Keywords:

Biodegradable, Compatibilizer, PEG, PLA, Thermoplastic Starch

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© 2021 Trans Tech Publications Ltd. All Rights Reserved

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