Study on the Morphology, Mechanical, Thermal Stability Properties of Poly(Lactic-Acid)/Poly(Ether-Block-Amide) Blends Prepared by Triple-Single Screw Extruder

Bin Xue; He Zhi He; Bi Da Liu; Feng Xue; Zhi Wen Zhu; Shi Ming Liu; Ming Chen; Guo Zhen Wang; Zhi Ming Zhan; Qing-Hua Chen; Deng-Long Chen

doi:10.4028/www.scientific.net/KEM.783.51

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 783Study on the Morphology, Mechanical, Thermal...

Study on the Morphology, Mechanical, Thermal Stability Properties of Poly(Lactic-Acid)/Poly(Ether-Block-Amide) Blends Prepared by Triple-Single Screw Extruder

Abstract:

In this work, PLA /PEBA blends with the addition of different PEBA contents were prepared via self-made Triple-Single Screw Extruder, the phase morphology, mechanical properties thermal stability of PLA /PEBA blends with PEBA content were investigated. For the pure PLA, the tensile strength decreased, while the elongation at break and the impact strength increased significantly with addition of 15% PEBA. The which were improved nearly 23 and 5 times. The results illustrate that the soft component PEBA was beneficial to improve the tensile ductility and the toughness of PLA. SEM measurements indicate the PEBA and PLA intertwined with each other, two phases interface bond tightly, improving the compatibility of the blends when PEBA content is not more than 15 wt%, with further increasing PEBA, the two-phase interface appears and decreases the interfacial adhesion, resulting in the poor mechanical properties of blends.TG results reveal that thermal stability of PLA/PEBA blends was improved.

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International Conference on Material Science and Engineering III

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Periodical:

Key Engineering Materials (Volume 783)

Pages:

51-55

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.783.51

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Online since:

October 2018

Authors:

Bin Xue, He Zhi He*, Bi Da Liu, Feng Xue, Zhi Wen Zhu, Shi Ming Liu, Ming Chen, Guo Zhen Wang, Zhi Ming Zhan, Qing-Hua Chen, Deng-Long Chen

Keywords:

Performance Study, Poly(Ether-Block-Amide), Poly(Lactic Acid), Triple-Single Screw Extruder

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