The CNC dispersion quality in various PLA grades

Emre Vatansever; Dogan Arslan; Deniz Sema Sarul; Mohammadreza Nofar

doi:10.1063/5.0135790

The CNC dispersion quality in various PLA grades

Emre Vatansever, Dogan Arslan, Deniz Sema Sarul, Mohammadreza Nofar^*

^*Corresponding author for this work

Department of Metallurgical and Materials Engineering

Istanbul Technical University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

In this study, the effect of molecular weight and crystallizability of PLA matrix on the PLA/CNC nanocomposite morphology was systematically investigated using rheological experiments. PLA/CNC nanocomposites containing 1, 3, 5, 7, and 10 wt% of CNC were prepared using solution casting method. The comparison of the effect of PLA molecular weight indicated that CNC could form a percolation network at lower contents when low molecular weight PLA was used as the matrix. This finding attributed to the easier interpenetration of shorter PLA chains and CNC nanoparticles in the solvent. On the other hand, it was observed that the use of PLA with higher crystallizability caused further reduction of the onset of CNC percolation network concentrations. This was because during the solvent evaporation step, which was at around 85°C, the isothermal cold crystallization of PLA around the dispersed CNCs could become more favorable and thereby the heterogeneous crystal nucleation could prevent the driving force of the CNCs towards aggregation.

Original language	English
Title of host publication	Proceedings of the 36th International Conference of the Polymer Processing Society, PPS 2021
Editors	Abdellah Ajji, Frej Mighri, Hani E. Naguib
Publisher	American Institute of Physics Inc.
ISBN (Electronic)	9780735445062
DOIs	https://doi.org/10.1063/5.0135790
Publication status	Published - 23 May 2023
Event	36th International Conference of the Polymer Processing Society, PPS 2021 - Montreal, Canada Duration: 26 Sept 2021 → 29 Sept 2021

Publication series

Name	AIP Conference Proceedings
Volume	2607
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Conference

Conference	36th International Conference of the Polymer Processing Society, PPS 2021
Country/Territory	Canada
City	Montreal
Period	26/09/21 → 29/09/21

Bibliographical note

Publisher Copyright:
© 2023 Author(s).

Keywords

Cellulose Nanocrystals
CNC dispersion
Nanocomposites
Polylactide
rheological properties

Access to Document

10.1063/5.0135790

Cite this

Vatansever, E., Arslan, D., Sarul, D. S., & Nofar, M. (2023). The CNC dispersion quality in various PLA grades. In A. Ajji, F. Mighri, & H. E. Naguib (Eds.), Proceedings of the 36th International Conference of the Polymer Processing Society, PPS 2021 Article 070012 (AIP Conference Proceedings; Vol. 2607). American Institute of Physics Inc.. https://doi.org/10.1063/5.0135790

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title = "The CNC dispersion quality in various PLA grades",

abstract = "In this study, the effect of molecular weight and crystallizability of PLA matrix on the PLA/CNC nanocomposite morphology was systematically investigated using rheological experiments. PLA/CNC nanocomposites containing 1, 3, 5, 7, and 10 wt% of CNC were prepared using solution casting method. The comparison of the effect of PLA molecular weight indicated that CNC could form a percolation network at lower contents when low molecular weight PLA was used as the matrix. This finding attributed to the easier interpenetration of shorter PLA chains and CNC nanoparticles in the solvent. On the other hand, it was observed that the use of PLA with higher crystallizability caused further reduction of the onset of CNC percolation network concentrations. This was because during the solvent evaporation step, which was at around 85°C, the isothermal cold crystallization of PLA around the dispersed CNCs could become more favorable and thereby the heterogeneous crystal nucleation could prevent the driving force of the CNCs towards aggregation.",

keywords = "Cellulose Nanocrystals, CNC dispersion, Nanocomposites, Polylactide, rheological properties",

author = "Emre Vatansever and Dogan Arslan and Sarul, {Deniz Sema} and Mohammadreza Nofar",

note = "Publisher Copyright: {\textcopyright} 2023 Author(s).; 36th International Conference of the Polymer Processing Society, PPS 2021 ; Conference date: 26-09-2021 Through 29-09-2021",

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Vatansever, E, Arslan, D, Sarul, DS & Nofar, M 2023, The CNC dispersion quality in various PLA grades. in A Ajji, F Mighri & HE Naguib (eds), Proceedings of the 36th International Conference of the Polymer Processing Society, PPS 2021., 070012, AIP Conference Proceedings, vol. 2607, American Institute of Physics Inc., 36th International Conference of the Polymer Processing Society, PPS 2021, Montreal, Canada, 26/09/21. https://doi.org/10.1063/5.0135790

The CNC dispersion quality in various PLA grades. / Vatansever, Emre; Arslan, Dogan; Sarul, Deniz Sema et al.
Proceedings of the 36th International Conference of the Polymer Processing Society, PPS 2021. ed. / Abdellah Ajji; Frej Mighri; Hani E. Naguib. American Institute of Physics Inc., 2023. 070012 (AIP Conference Proceedings; Vol. 2607).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - The CNC dispersion quality in various PLA grades

AU - Vatansever, Emre

AU - Arslan, Dogan

AU - Sarul, Deniz Sema

AU - Nofar, Mohammadreza

PY - 2023/5/23

Y1 - 2023/5/23

N2 - In this study, the effect of molecular weight and crystallizability of PLA matrix on the PLA/CNC nanocomposite morphology was systematically investigated using rheological experiments. PLA/CNC nanocomposites containing 1, 3, 5, 7, and 10 wt% of CNC were prepared using solution casting method. The comparison of the effect of PLA molecular weight indicated that CNC could form a percolation network at lower contents when low molecular weight PLA was used as the matrix. This finding attributed to the easier interpenetration of shorter PLA chains and CNC nanoparticles in the solvent. On the other hand, it was observed that the use of PLA with higher crystallizability caused further reduction of the onset of CNC percolation network concentrations. This was because during the solvent evaporation step, which was at around 85°C, the isothermal cold crystallization of PLA around the dispersed CNCs could become more favorable and thereby the heterogeneous crystal nucleation could prevent the driving force of the CNCs towards aggregation.

AB - In this study, the effect of molecular weight and crystallizability of PLA matrix on the PLA/CNC nanocomposite morphology was systematically investigated using rheological experiments. PLA/CNC nanocomposites containing 1, 3, 5, 7, and 10 wt% of CNC were prepared using solution casting method. The comparison of the effect of PLA molecular weight indicated that CNC could form a percolation network at lower contents when low molecular weight PLA was used as the matrix. This finding attributed to the easier interpenetration of shorter PLA chains and CNC nanoparticles in the solvent. On the other hand, it was observed that the use of PLA with higher crystallizability caused further reduction of the onset of CNC percolation network concentrations. This was because during the solvent evaporation step, which was at around 85°C, the isothermal cold crystallization of PLA around the dispersed CNCs could become more favorable and thereby the heterogeneous crystal nucleation could prevent the driving force of the CNCs towards aggregation.

KW - Cellulose Nanocrystals

KW - CNC dispersion

KW - Nanocomposites

KW - Polylactide

KW - rheological properties

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BT - Proceedings of the 36th International Conference of the Polymer Processing Society, PPS 2021

A2 - Ajji, Abdellah

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PB - American Institute of Physics Inc.

T2 - 36th International Conference of the Polymer Processing Society, PPS 2021

Y2 - 26 September 2021 through 29 September 2021

ER -

The CNC dispersion quality in various PLA grades

Abstract

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Conference

Bibliographical note

Keywords

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