Preparation and characterization of amino functionalized graphite nanoplatelet

Yan Geng; Shu Jun Wang; Jing Li; Jang Kyo Kim

Preparation and characterization of amino functionalized graphite nanoplatelet

Yan Geng
, Shu Jun Wang
, Jing Li
, Jang Kyo Kim

Mechanical & Nuclear Engineering

The Hong Kong University of Science and Technology

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

Abstract

Graphite nanoplatelet (GNP) has been widely used as a low-cost filler for conducting polymer nanocomposites. To improve the compatibility and interfacial interactions with polymer matrix, GNPs were treated with amino-functionalization agents, including triethylenetetramine (TETA) and ammonium bicarbonate (NH ₄HCO₃), using ultrasonication as the dispersion technique to promote functionalization process. Several characterization tools were employed to determine the surface chemistry of GNPs before and after functionalization, as well as to characterize the effects of ultrasonication on the aspect ratio of GNPs. Amine and amide functional groups were identified to be present on the surface of functionalized GNPs. The TETA treated GNPs exhibited a much higher nitrogen content along with more prominent functional groups than the NH₄HCO₃ treated GNP, which is consistent with the higher relative intensities of D bands in Raman spectra as a reflection of a greater degree of disorder for the former GNPs. The suspension stability of GNP dispersion was significantly improved after functionalization, in particular for the TETA treated GNPs.

Original language	British English
Title of host publication	Progress of Composites 2008 in Asia and Australasia - Proceedings of the 6th Asian-Australasian Conference on Composite Materials, ACCM 2008
Pages	52-55
Number of pages	4
State	Published - 2008
Event	6th Asian-Australasian Conference on Composite Materials: Progress of Composites 2008 in Asia and Australasia, ACCM 2008 - Kumamoto, Kyushu, Japan Duration: 23 Sep 2008 → 26 Sep 2008

Publication series

Name	Progress of Composites 2008 in Asia and Australasia - Proceedings of the 6th Asian-Australasian Conference on Composite Materials, ACCM 2008

Conference

Conference	6th Asian-Australasian Conference on Composite Materials: Progress of Composites 2008 in Asia and Australasia, ACCM 2008
Country/Territory	Japan
City	Kumamoto, Kyushu
Period	23/09/08 → 26/09/08

Keywords

Amino functionalization
Graphite nanoplatelet
Suspension stability
Ultrasonication

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Geng, Y., Wang, S. J., Li, J., & Kim, J. K. (2008). Preparation and characterization of amino functionalized graphite nanoplatelet. In Progress of Composites 2008 in Asia and Australasia - Proceedings of the 6th Asian-Australasian Conference on Composite Materials, ACCM 2008 (pp. 52-55). (Progress of Composites 2008 in Asia and Australasia - Proceedings of the 6th Asian-Australasian Conference on Composite Materials, ACCM 2008).

Geng, Yan ; Wang, Shu Jun ; Li, Jing et al. / Preparation and characterization of amino functionalized graphite nanoplatelet. Progress of Composites 2008 in Asia and Australasia - Proceedings of the 6th Asian-Australasian Conference on Composite Materials, ACCM 2008. 2008. pp. 52-55 (Progress of Composites 2008 in Asia and Australasia - Proceedings of the 6th Asian-Australasian Conference on Composite Materials, ACCM 2008).

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title = "Preparation and characterization of amino functionalized graphite nanoplatelet",

abstract = "Graphite nanoplatelet (GNP) has been widely used as a low-cost filler for conducting polymer nanocomposites. To improve the compatibility and interfacial interactions with polymer matrix, GNPs were treated with amino-functionalization agents, including triethylenetetramine (TETA) and ammonium bicarbonate (NH 4HCO3), using ultrasonication as the dispersion technique to promote functionalization process. Several characterization tools were employed to determine the surface chemistry of GNPs before and after functionalization, as well as to characterize the effects of ultrasonication on the aspect ratio of GNPs. Amine and amide functional groups were identified to be present on the surface of functionalized GNPs. The TETA treated GNPs exhibited a much higher nitrogen content along with more prominent functional groups than the NH4HCO3 treated GNP, which is consistent with the higher relative intensities of D bands in Raman spectra as a reflection of a greater degree of disorder for the former GNPs. The suspension stability of GNP dispersion was significantly improved after functionalization, in particular for the TETA treated GNPs.",

keywords = "Amino functionalization, Graphite nanoplatelet, Suspension stability, Ultrasonication",

author = "Yan Geng and Wang, \{Shu Jun\} and Jing Li and Kim, \{Jang Kyo\}",

year = "2008",

language = "British English",

isbn = "9784901381321",

series = "Progress of Composites 2008 in Asia and Australasia - Proceedings of the 6th Asian-Australasian Conference on Composite Materials, ACCM 2008",

pages = "52--55",

booktitle = "Progress of Composites 2008 in Asia and Australasia - Proceedings of the 6th Asian-Australasian Conference on Composite Materials, ACCM 2008",

note = "6th Asian-Australasian Conference on Composite Materials: Progress of Composites 2008 in Asia and Australasia, ACCM 2008 ; Conference date: 23-09-2008 Through 26-09-2008",

}

Geng, Y, Wang, SJ, Li, J & Kim, JK 2008, Preparation and characterization of amino functionalized graphite nanoplatelet. in Progress of Composites 2008 in Asia and Australasia - Proceedings of the 6th Asian-Australasian Conference on Composite Materials, ACCM 2008. Progress of Composites 2008 in Asia and Australasia - Proceedings of the 6th Asian-Australasian Conference on Composite Materials, ACCM 2008, pp. 52-55, 6th Asian-Australasian Conference on Composite Materials: Progress of Composites 2008 in Asia and Australasia, ACCM 2008, Kumamoto, Kyushu, Japan, 23/09/08.

Preparation and characterization of amino functionalized graphite nanoplatelet. / Geng, Yan; Wang, Shu Jun; Li, Jing et al.
Progress of Composites 2008 in Asia and Australasia - Proceedings of the 6th Asian-Australasian Conference on Composite Materials, ACCM 2008. 2008. p. 52-55 (Progress of Composites 2008 in Asia and Australasia - Proceedings of the 6th Asian-Australasian Conference on Composite Materials, ACCM 2008).

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

TY - GEN

T1 - Preparation and characterization of amino functionalized graphite nanoplatelet

AU - Geng, Yan

AU - Wang, Shu Jun

AU - Li, Jing

AU - Kim, Jang Kyo

PY - 2008

Y1 - 2008

N2 - Graphite nanoplatelet (GNP) has been widely used as a low-cost filler for conducting polymer nanocomposites. To improve the compatibility and interfacial interactions with polymer matrix, GNPs were treated with amino-functionalization agents, including triethylenetetramine (TETA) and ammonium bicarbonate (NH 4HCO3), using ultrasonication as the dispersion technique to promote functionalization process. Several characterization tools were employed to determine the surface chemistry of GNPs before and after functionalization, as well as to characterize the effects of ultrasonication on the aspect ratio of GNPs. Amine and amide functional groups were identified to be present on the surface of functionalized GNPs. The TETA treated GNPs exhibited a much higher nitrogen content along with more prominent functional groups than the NH4HCO3 treated GNP, which is consistent with the higher relative intensities of D bands in Raman spectra as a reflection of a greater degree of disorder for the former GNPs. The suspension stability of GNP dispersion was significantly improved after functionalization, in particular for the TETA treated GNPs.

AB - Graphite nanoplatelet (GNP) has been widely used as a low-cost filler for conducting polymer nanocomposites. To improve the compatibility and interfacial interactions with polymer matrix, GNPs were treated with amino-functionalization agents, including triethylenetetramine (TETA) and ammonium bicarbonate (NH 4HCO3), using ultrasonication as the dispersion technique to promote functionalization process. Several characterization tools were employed to determine the surface chemistry of GNPs before and after functionalization, as well as to characterize the effects of ultrasonication on the aspect ratio of GNPs. Amine and amide functional groups were identified to be present on the surface of functionalized GNPs. The TETA treated GNPs exhibited a much higher nitrogen content along with more prominent functional groups than the NH4HCO3 treated GNP, which is consistent with the higher relative intensities of D bands in Raman spectra as a reflection of a greater degree of disorder for the former GNPs. The suspension stability of GNP dispersion was significantly improved after functionalization, in particular for the TETA treated GNPs.

KW - Amino functionalization

KW - Graphite nanoplatelet

KW - Suspension stability

KW - Ultrasonication

UR - https://www.scopus.com/pages/publications/84887556850

M3 - Conference contribution

AN - SCOPUS:84887556850

SN - 9784901381321

T3 - Progress of Composites 2008 in Asia and Australasia - Proceedings of the 6th Asian-Australasian Conference on Composite Materials, ACCM 2008

SP - 52

EP - 55

BT - Progress of Composites 2008 in Asia and Australasia - Proceedings of the 6th Asian-Australasian Conference on Composite Materials, ACCM 2008

T2 - 6th Asian-Australasian Conference on Composite Materials: Progress of Composites 2008 in Asia and Australasia, ACCM 2008

Y2 - 23 September 2008 through 26 September 2008

ER -

Geng Y, Wang SJ, Li J, Kim JK. Preparation and characterization of amino functionalized graphite nanoplatelet. In Progress of Composites 2008 in Asia and Australasia - Proceedings of the 6th Asian-Australasian Conference on Composite Materials, ACCM 2008. 2008. p. 52-55. (Progress of Composites 2008 in Asia and Australasia - Proceedings of the 6th Asian-Australasian Conference on Composite Materials, ACCM 2008).

Preparation and characterization of amino functionalized graphite nanoplatelet

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Keywords

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