Novel carbon nanotube/poly(L-lactic acid) nanocomposites; their modulus, thermal stability, and electrical conductivity

Sung Il Moon; Fengzhe Jin; Cheol Jin Lee; Sadami Tsutsumi; Suong Hyu Hyon

doi:10.1002/masy.200550625

Novel carbon nanotube/poly(L-lactic acid) nanocomposites; their modulus, thermal stability, and electrical conductivity

Sung Il Moon, Fengzhe Jin, Cheol Jin Lee, Sadami Tsutsumi, Suong Hyu Hyon

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

134 Citations (Scopus)

Abstract

The interest in poly(L-lactic acid)(PLLA) has been increasing in recent years because this polymer is made from renewable resources and its properties are benign to the environment. Carbon nanotubes(CNTs) have shown exceptional stiffness and strength and remarkable thermal and electrical properties, which make them ideal candidates for the development of multifunctional material systems. In this study, mechanical and thermal properties as well as the electrical conductivity of CNTs/PLLA nanocomposites were investigated. Our study of the mechanical properties of these nanocomposites indicates that the tensile strength and ultimate elongation decreased, but Young's modulus slightly increased from 1 GPa to 2.5 GPa. Embedding the CNTs into the polymer matrix improves the thermal stability of the polymer. The thermogravimetric analysis (TGA) results of PLLA and the 3 wt% CNTs/PLLA nanocomposites in air show initial weight loss at the same temperature as PLLA, but the decomposition temperature for the nanocomposite is approximately 10°C higher than that of PLLA. Similar results were found for the other CNTs/PLLA composites (5, 10 wt%). In addition, electrical conductivity and electromagnetic wave shielding effect was also investigated.

Original language	English
Pages (from-to)	287-296
Number of pages	10
Journal	Macromolecular Symposia
Volume	224
DOIs	https://doi.org/10.1002/masy.200550625
Publication status	Published - 2005 Apr
Externally published	Yes

Keywords

Biodegradable
Carbon nanotubes (CNTs)
Multiwalled carbon nanotubes (MWCNTs)
Nanocomposites
Poly(L-lactic acid) (PLLA)

ASJC Scopus subject areas

Condensed Matter Physics
Organic Chemistry
Polymers and Plastics
Materials Chemistry

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1002/masy.200550625

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title = "Novel carbon nanotube/poly(L-lactic acid) nanocomposites; their modulus, thermal stability, and electrical conductivity",

abstract = "The interest in poly(L-lactic acid)(PLLA) has been increasing in recent years because this polymer is made from renewable resources and its properties are benign to the environment. Carbon nanotubes(CNTs) have shown exceptional stiffness and strength and remarkable thermal and electrical properties, which make them ideal candidates for the development of multifunctional material systems. In this study, mechanical and thermal properties as well as the electrical conductivity of CNTs/PLLA nanocomposites were investigated. Our study of the mechanical properties of these nanocomposites indicates that the tensile strength and ultimate elongation decreased, but Young's modulus slightly increased from 1 GPa to 2.5 GPa. Embedding the CNTs into the polymer matrix improves the thermal stability of the polymer. The thermogravimetric analysis (TGA) results of PLLA and the 3 wt% CNTs/PLLA nanocomposites in air show initial weight loss at the same temperature as PLLA, but the decomposition temperature for the nanocomposite is approximately 10°C higher than that of PLLA. Similar results were found for the other CNTs/PLLA composites (5, 10 wt%). In addition, electrical conductivity and electromagnetic wave shielding effect was also investigated.",

keywords = "Biodegradable, Carbon nanotubes (CNTs), Multiwalled carbon nanotubes (MWCNTs), Nanocomposites, Poly(L-lactic acid) (PLLA)",

author = "Moon, {Sung Il} and Fengzhe Jin and Lee, {Cheol Jin} and Sadami Tsutsumi and Hyon, {Suong Hyu}",

year = "2005",

month = apr,

doi = "10.1002/masy.200550625",

language = "English",

volume = "224",

pages = "287--296",

journal = "Macromolecular Symposia",

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T1 - Novel carbon nanotube/poly(L-lactic acid) nanocomposites; their modulus, thermal stability, and electrical conductivity

AU - Moon, Sung Il

AU - Jin, Fengzhe

AU - Lee, Cheol Jin

AU - Tsutsumi, Sadami

AU - Hyon, Suong Hyu

PY - 2005/4

Y1 - 2005/4

N2 - The interest in poly(L-lactic acid)(PLLA) has been increasing in recent years because this polymer is made from renewable resources and its properties are benign to the environment. Carbon nanotubes(CNTs) have shown exceptional stiffness and strength and remarkable thermal and electrical properties, which make them ideal candidates for the development of multifunctional material systems. In this study, mechanical and thermal properties as well as the electrical conductivity of CNTs/PLLA nanocomposites were investigated. Our study of the mechanical properties of these nanocomposites indicates that the tensile strength and ultimate elongation decreased, but Young's modulus slightly increased from 1 GPa to 2.5 GPa. Embedding the CNTs into the polymer matrix improves the thermal stability of the polymer. The thermogravimetric analysis (TGA) results of PLLA and the 3 wt% CNTs/PLLA nanocomposites in air show initial weight loss at the same temperature as PLLA, but the decomposition temperature for the nanocomposite is approximately 10°C higher than that of PLLA. Similar results were found for the other CNTs/PLLA composites (5, 10 wt%). In addition, electrical conductivity and electromagnetic wave shielding effect was also investigated.

AB - The interest in poly(L-lactic acid)(PLLA) has been increasing in recent years because this polymer is made from renewable resources and its properties are benign to the environment. Carbon nanotubes(CNTs) have shown exceptional stiffness and strength and remarkable thermal and electrical properties, which make them ideal candidates for the development of multifunctional material systems. In this study, mechanical and thermal properties as well as the electrical conductivity of CNTs/PLLA nanocomposites were investigated. Our study of the mechanical properties of these nanocomposites indicates that the tensile strength and ultimate elongation decreased, but Young's modulus slightly increased from 1 GPa to 2.5 GPa. Embedding the CNTs into the polymer matrix improves the thermal stability of the polymer. The thermogravimetric analysis (TGA) results of PLLA and the 3 wt% CNTs/PLLA nanocomposites in air show initial weight loss at the same temperature as PLLA, but the decomposition temperature for the nanocomposite is approximately 10°C higher than that of PLLA. Similar results were found for the other CNTs/PLLA composites (5, 10 wt%). In addition, electrical conductivity and electromagnetic wave shielding effect was also investigated.

KW - Biodegradable

KW - Carbon nanotubes (CNTs)

KW - Multiwalled carbon nanotubes (MWCNTs)

KW - Nanocomposites

KW - Poly(L-lactic acid) (PLLA)

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M3 - Article

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SN - 1022-1360

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JO - Macromolecular Symposia

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ER -

Novel carbon nanotube/poly(L-lactic acid) nanocomposites; their modulus, thermal stability, and electrical conductivity

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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