Rheological properties and fracture toughness of epoxy resin/multi-walled carbon nanotube composites

Soo Jin Park; Gun Young Heo; Fan Long Jin

doi:10.1002/pen.24165

Rheological properties and fracture toughness of epoxy resin/multi-walled carbon nanotube composites

Soo Jin Park
, Gun Young Heo
, Fan Long Jin

Inha University
Jilin Institute of Chemical Technology

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

Abstract

Multi-walled carbon nanotubes (MWCNTs), surface-treated via chemical functionalization, i.e., oxidation and amidation, were used to reinforce diglycidylether of bisphenol F (DGEBF) epoxy resin. The effects of the functionalization on the dispersion stability, rheological properties, and fracture toughness of DGEBF/MWCNT composites were investigated. The dispersion homogeneity of the MWCNTs in the epoxy matrix improved after functionalization. In addition, isothermal rheology measurements revealed that the DGEBF/dodecyl amine-functionalized MWCNT (D-MWCNT) composite had a longer gel time and higher activation energy of cross-linking than the DGEBF/acid-treated MWCNT (A-MWCNT) composite. The fracture toughness of the former was also significantly higher than that of the latter; this resulted from the relatively high dispersion stability of the D-MWCNTs in the epoxy matrix, owing to the presence of alkyl groups on the D-MWCNT surface.

Original language	English
Pages (from-to)	2676-2682
Number of pages	7
Journal	Polymer Engineering and Science
Volume	55
Issue number	11
DOIs	https://doi.org/10.1002/pen.24165
Publication status	Published - 1 Nov 2015
Externally published	Yes

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title = "Rheological properties and fracture toughness of epoxy resin/multi-walled carbon nanotube composites",

abstract = "Multi-walled carbon nanotubes (MWCNTs), surface-treated via chemical functionalization, i.e., oxidation and amidation, were used to reinforce diglycidylether of bisphenol F (DGEBF) epoxy resin. The effects of the functionalization on the dispersion stability, rheological properties, and fracture toughness of DGEBF/MWCNT composites were investigated. The dispersion homogeneity of the MWCNTs in the epoxy matrix improved after functionalization. In addition, isothermal rheology measurements revealed that the DGEBF/dodecyl amine-functionalized MWCNT (D-MWCNT) composite had a longer gel time and higher activation energy of cross-linking than the DGEBF/acid-treated MWCNT (A-MWCNT) composite. The fracture toughness of the former was also significantly higher than that of the latter; this resulted from the relatively high dispersion stability of the D-MWCNTs in the epoxy matrix, owing to the presence of alkyl groups on the D-MWCNT surface.",

author = "Park, \{Soo Jin\} and Heo, \{Gun Young\} and Jin, \{Fan Long\}",

note = "Publisher Copyright: {\textcopyright} 2015 Society of Plastics Engineers.",

year = "2015",

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doi = "10.1002/pen.24165",

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journal = "Polymer Engineering and Science",

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T1 - Rheological properties and fracture toughness of epoxy resin/multi-walled carbon nanotube composites

AU - Park, Soo Jin

AU - Heo, Gun Young

AU - Jin, Fan Long

PY - 2015/11/1

Y1 - 2015/11/1

N2 - Multi-walled carbon nanotubes (MWCNTs), surface-treated via chemical functionalization, i.e., oxidation and amidation, were used to reinforce diglycidylether of bisphenol F (DGEBF) epoxy resin. The effects of the functionalization on the dispersion stability, rheological properties, and fracture toughness of DGEBF/MWCNT composites were investigated. The dispersion homogeneity of the MWCNTs in the epoxy matrix improved after functionalization. In addition, isothermal rheology measurements revealed that the DGEBF/dodecyl amine-functionalized MWCNT (D-MWCNT) composite had a longer gel time and higher activation energy of cross-linking than the DGEBF/acid-treated MWCNT (A-MWCNT) composite. The fracture toughness of the former was also significantly higher than that of the latter; this resulted from the relatively high dispersion stability of the D-MWCNTs in the epoxy matrix, owing to the presence of alkyl groups on the D-MWCNT surface.

AB - Multi-walled carbon nanotubes (MWCNTs), surface-treated via chemical functionalization, i.e., oxidation and amidation, were used to reinforce diglycidylether of bisphenol F (DGEBF) epoxy resin. The effects of the functionalization on the dispersion stability, rheological properties, and fracture toughness of DGEBF/MWCNT composites were investigated. The dispersion homogeneity of the MWCNTs in the epoxy matrix improved after functionalization. In addition, isothermal rheology measurements revealed that the DGEBF/dodecyl amine-functionalized MWCNT (D-MWCNT) composite had a longer gel time and higher activation energy of cross-linking than the DGEBF/acid-treated MWCNT (A-MWCNT) composite. The fracture toughness of the former was also significantly higher than that of the latter; this resulted from the relatively high dispersion stability of the D-MWCNTs in the epoxy matrix, owing to the presence of alkyl groups on the D-MWCNT surface.

UR - https://www.scopus.com/pages/publications/84943595789

U2 - 10.1002/pen.24165

DO - 10.1002/pen.24165

M3 - Article

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SN - 0032-3888

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SP - 2676

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JO - Polymer Engineering and Science

JF - Polymer Engineering and Science

IS - 11

ER -

Rheological properties and fracture toughness of epoxy resin/multi-walled carbon nanotube composites

Abstract

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