Nanoparticle Interactions and Molecular Relaxation in PLA/PBAT/Nanoclay Blends

M. Nofar; M. C. Heuzey; P. J. Carreau; M. R. Kamal

doi:10.1017/exp.2020.54

Nanoparticle Interactions and Molecular Relaxation in PLA/PBAT/Nanoclay Blends

M. Nofar^*, M. C. Heuzey, P. J. Carreau, M. R. Kamal

^*Corresponding author for this work

Department of Metallurgical and Materials Engineering

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

Organo-modified clay nanoparticles were mixed at 1 and 5 wt% concentrations with a molten blend of 75 wt% of polylactide (PLA) and 25 wt% poly[(butylene adipate)-co-terephthalate] (PBAT). Three mixing strategies were used to control the localization of nanoclay. Small amplitude oscillatory shear (SAOS) and stress growth tests were conducted to clarify the nanoclay interactions with the blend components and its effect on the molecular relaxation behavior. SAOS and weighted relaxation spectra properties were determined before and after pre-shearing at a rate of 0.01 s-1. Molecular relaxation and its characteristics were influenced by PLA degradation, PBAT droplet coalescence, and nanoclay localization.

Original language	English
Article number	e47
Journal	Experimental Results
Volume	1
DOIs	https://doi.org/10.1017/exp.2020.54
Publication status	Published - 23 Oct 2020

Bibliographical note

Publisher Copyright:
© 2022 The Author(s). Published by Cambridge University Press.

Keywords

Blend
PLA
Rheology

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10.1017/exp.2020.54

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abstract = "Organo-modified clay nanoparticles were mixed at 1 and 5 wt% concentrations with a molten blend of 75 wt% of polylactide (PLA) and 25 wt% poly[(butylene adipate)-co-terephthalate] (PBAT). Three mixing strategies were used to control the localization of nanoclay. Small amplitude oscillatory shear (SAOS) and stress growth tests were conducted to clarify the nanoclay interactions with the blend components and its effect on the molecular relaxation behavior. SAOS and weighted relaxation spectra properties were determined before and after pre-shearing at a rate of 0.01 s-1. Molecular relaxation and its characteristics were influenced by PLA degradation, PBAT droplet coalescence, and nanoclay localization.",

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AU - Heuzey, M. C.

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AU - Kamal, M. R.

PY - 2020/10/23

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AB - Organo-modified clay nanoparticles were mixed at 1 and 5 wt% concentrations with a molten blend of 75 wt% of polylactide (PLA) and 25 wt% poly[(butylene adipate)-co-terephthalate] (PBAT). Three mixing strategies were used to control the localization of nanoclay. Small amplitude oscillatory shear (SAOS) and stress growth tests were conducted to clarify the nanoclay interactions with the blend components and its effect on the molecular relaxation behavior. SAOS and weighted relaxation spectra properties were determined before and after pre-shearing at a rate of 0.01 s-1. Molecular relaxation and its characteristics were influenced by PLA degradation, PBAT droplet coalescence, and nanoclay localization.

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KW - Rheology

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VL - 1

JO - Experimental Results

JF - Experimental Results

M1 - e47

ER -

Nanoparticle Interactions and Molecular Relaxation in PLA/PBAT/Nanoclay Blends

Abstract

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Keywords

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