Manufacturing of high-performance nano/microcellular expanded PLA bead foams

Mohammadreza Nofar; Chul B. Park

doi:10.1115/IMECE201550048

Manufacturing of high-performance nano/microcellular expanded PLA bead foams

Mohammadreza Nofar, Chul B. Park

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

1 Citation (Scopus)

Abstract

In this study, expanded polylactide (EPLA) bead foams were produced with cellular morphology ranging from nanocellular to microcellular. This was achieved by using bead foaming technology while a double crystal melting peak structure was generated. The high melting peak crystals generated during the gas saturation played an important role on controlling the cell size and expansion ratio of the foamed beads. As the amount of high melting peak crystals increased, the cell sizes were reduced to around 350 nm while the expansion ratio was around 3-fold. In other words, the induced perfected crystals significantly promoted the heterogeneous cell nucleation while hindering the cell growth. On the other hand, with the reduced amount of these perfected crystals, the cell sizes were increased to around 15 μm and the expansion ratio of the foamed beads increased to 30-fold.

Original language	English
Title of host publication	Advances in Multidisciplinary Engineering
Publisher	American Society of Mechanical Engineers (ASME)
ISBN (Electronic)	9780791857588
DOIs	https://doi.org/10.1115/IMECE201550048
Publication status	Published - 2015
Externally published	Yes
Event	ASME 2015 International Mechanical Engineering Congress and Exposition, IMECE 2015 - Houston, United States Duration: 13 Nov 2015 → 19 Nov 2015

Publication series

Name	ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
Volume	15-2015

Conference

Conference	ASME 2015 International Mechanical Engineering Congress and Exposition, IMECE 2015
Country/Territory	United States
City	Houston
Period	13/11/15 → 19/11/15

Bibliographical note

Publisher Copyright:
Copyright © 2015 by ASME.

Keywords

Bead Foaming
Crystallization
Microcellular
Nanocellular
Polylactide

Access to Document

10.1115/IMECE201550048

Cite this

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title = "Manufacturing of high-performance nano/microcellular expanded PLA bead foams",

abstract = "In this study, expanded polylactide (EPLA) bead foams were produced with cellular morphology ranging from nanocellular to microcellular. This was achieved by using bead foaming technology while a double crystal melting peak structure was generated. The high melting peak crystals generated during the gas saturation played an important role on controlling the cell size and expansion ratio of the foamed beads. As the amount of high melting peak crystals increased, the cell sizes were reduced to around 350 nm while the expansion ratio was around 3-fold. In other words, the induced perfected crystals significantly promoted the heterogeneous cell nucleation while hindering the cell growth. On the other hand, with the reduced amount of these perfected crystals, the cell sizes were increased to around 15 μm and the expansion ratio of the foamed beads increased to 30-fold.",

keywords = "Bead Foaming, Crystallization, Microcellular, Nanocellular, Polylactide",

author = "Mohammadreza Nofar and Park, {Chul B.}",

note = "Publisher Copyright: Copyright {\textcopyright} 2015 by ASME.; ASME 2015 International Mechanical Engineering Congress and Exposition, IMECE 2015 ; Conference date: 13-11-2015 Through 19-11-2015",

year = "2015",

doi = "10.1115/IMECE201550048",

language = "English",

series = "ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)",

publisher = "American Society of Mechanical Engineers (ASME)",

booktitle = "Advances in Multidisciplinary Engineering",

address = "United States",

}

Nofar, M & Park, CB 2015, Manufacturing of high-performance nano/microcellular expanded PLA bead foams. in Advances in Multidisciplinary Engineering. ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE), vol. 15-2015, American Society of Mechanical Engineers (ASME), ASME 2015 International Mechanical Engineering Congress and Exposition, IMECE 2015, Houston, United States, 13/11/15. https://doi.org/10.1115/IMECE201550048

Manufacturing of high-performance nano/microcellular expanded PLA bead foams. / Nofar, Mohammadreza; Park, Chul B.
Advances in Multidisciplinary Engineering. American Society of Mechanical Engineers (ASME), 2015. (ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE); Vol. 15-2015).

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

TY - GEN

T1 - Manufacturing of high-performance nano/microcellular expanded PLA bead foams

AU - Nofar, Mohammadreza

AU - Park, Chul B.

PY - 2015

Y1 - 2015

N2 - In this study, expanded polylactide (EPLA) bead foams were produced with cellular morphology ranging from nanocellular to microcellular. This was achieved by using bead foaming technology while a double crystal melting peak structure was generated. The high melting peak crystals generated during the gas saturation played an important role on controlling the cell size and expansion ratio of the foamed beads. As the amount of high melting peak crystals increased, the cell sizes were reduced to around 350 nm while the expansion ratio was around 3-fold. In other words, the induced perfected crystals significantly promoted the heterogeneous cell nucleation while hindering the cell growth. On the other hand, with the reduced amount of these perfected crystals, the cell sizes were increased to around 15 μm and the expansion ratio of the foamed beads increased to 30-fold.

AB - In this study, expanded polylactide (EPLA) bead foams were produced with cellular morphology ranging from nanocellular to microcellular. This was achieved by using bead foaming technology while a double crystal melting peak structure was generated. The high melting peak crystals generated during the gas saturation played an important role on controlling the cell size and expansion ratio of the foamed beads. As the amount of high melting peak crystals increased, the cell sizes were reduced to around 350 nm while the expansion ratio was around 3-fold. In other words, the induced perfected crystals significantly promoted the heterogeneous cell nucleation while hindering the cell growth. On the other hand, with the reduced amount of these perfected crystals, the cell sizes were increased to around 15 μm and the expansion ratio of the foamed beads increased to 30-fold.

KW - Bead Foaming

KW - Crystallization

KW - Microcellular

KW - Nanocellular

KW - Polylactide

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M3 - Conference contribution

AN - SCOPUS:84982973108

T3 - ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)

BT - Advances in Multidisciplinary Engineering

PB - American Society of Mechanical Engineers (ASME)

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Y2 - 13 November 2015 through 19 November 2015

ER -

Manufacturing of high-performance nano/microcellular expanded PLA bead foams

Abstract

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Bibliographical note

Keywords

Access to Document

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