Epoxy nanocomposites containing magnetite-carbon nanofibers aligned using a weak magnetic field

Shuying Wu; Raj B. Ladani; Jin Zhang; Anthony J. Kinloch; Zhiheng Zhao; Jun Ma; Xuehua Zhang; Adrian P. Mouritz; Kamran Ghorbani; Chun H. Wang

doi:10.1016/j.polymer.2015.04.080

Epoxy nanocomposites containing magnetite-carbon nanofibers aligned using a weak magnetic field

Shuying Wu, Raj B. Ladani, Jin Zhang, Anthony J. Kinloch, Zhiheng Zhao, Jun Ma, Xuehua Zhang, Adrian P. Mouritz, Kamran Ghorbani, Chun H. Wang^*

^*Corresponding author for this work

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

93 Citations (Scopus)

27 Downloads (Pure)

Abstract

Abstract Novel magnetite-carbon nanofiber hybrids (denoted by "Fe₃O₄@CNFs") have been developed by coating carbon nanofibers (CNFs) with magnetite nanoparticles in order to align CNFs in epoxy using a relatively weak magnetic field. Experimental results have shown that a weak magnetic field (∼mT) can align these newly-developed nanofiber hybrids to form a chain-like structure in the epoxy resin. Upon curing, the epoxy nanocomposites containing the aligned Fe₃O₄@CNFs show (i) greatly improved electrical conductivity in the alignment direction and (ii) significantly higher fracture toughness when the Fe₃O₄@CNFs are aligned normal to the crack surface, compared to the nanocomposites containing randomly-oriented Fe₃O₄@CNFs. The mechanisms underpinning the significant improvements in the fracture toughness have been identified, including interfacial debonding, pull-out, crack bridging and rupture of the Fe₃O₄@CNFs, and plastic void growth in the polymer matrix.

Original language	English
Pages (from-to)	25-34
Number of pages	10
Journal	Polymer
Volume	68
DOIs	https://doi.org/10.1016/j.polymer.2015.04.080
Publication status	Published - 26 Jun 2015
Externally published	Yes

Bibliographical note

Copyright the Author(s) 2015. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

Keywords

Carbon nanofibers
Magnetic field alignment
Epoxy nanocomposites

Access to Document

10.1016/j.polymer.2015.04.080Licence: CC BY

Publisher version (open access)Final published version, 2.37 MBLicence: CC BY

Cite this

@article{974686f3b2c047d7b2885b2b8dcde65e,

title = "Epoxy nanocomposites containing magnetite-carbon nanofibers aligned using a weak magnetic field",

abstract = "Abstract Novel magnetite-carbon nanofiber hybrids (denoted by {"}Fe3O4@CNFs{"}) have been developed by coating carbon nanofibers (CNFs) with magnetite nanoparticles in order to align CNFs in epoxy using a relatively weak magnetic field. Experimental results have shown that a weak magnetic field (∼mT) can align these newly-developed nanofiber hybrids to form a chain-like structure in the epoxy resin. Upon curing, the epoxy nanocomposites containing the aligned Fe3O4@CNFs show (i) greatly improved electrical conductivity in the alignment direction and (ii) significantly higher fracture toughness when the Fe3O4@CNFs are aligned normal to the crack surface, compared to the nanocomposites containing randomly-oriented Fe3O4@CNFs. The mechanisms underpinning the significant improvements in the fracture toughness have been identified, including interfacial debonding, pull-out, crack bridging and rupture of the Fe3O4@CNFs, and plastic void growth in the polymer matrix.",

keywords = "Carbon nanofibers, Magnetic field alignment, Epoxy nanocomposites",

author = "Shuying Wu and Ladani, {Raj B.} and Jin Zhang and Kinloch, {Anthony J.} and Zhiheng Zhao and Jun Ma and Xuehua Zhang and Mouritz, {Adrian P.} and Kamran Ghorbani and Wang, {Chun H.}",

note = "Copyright the Author(s) 2015. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.",

year = "2015",

month = jun,

day = "26",

doi = "10.1016/j.polymer.2015.04.080",

language = "English",

volume = "68",

pages = "25--34",

journal = "Polymer",

issn = "0032-3861",

publisher = "Elsevier",

}

TY - JOUR

T1 - Epoxy nanocomposites containing magnetite-carbon nanofibers aligned using a weak magnetic field

AU - Wu, Shuying

AU - Ladani, Raj B.

AU - Zhang, Jin

AU - Kinloch, Anthony J.

AU - Zhao, Zhiheng

AU - Ma, Jun

AU - Zhang, Xuehua

AU - Mouritz, Adrian P.

AU - Ghorbani, Kamran

AU - Wang, Chun H.

N1 - Copyright the Author(s) 2015. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

PY - 2015/6/26

Y1 - 2015/6/26

N2 - Abstract Novel magnetite-carbon nanofiber hybrids (denoted by "Fe3O4@CNFs") have been developed by coating carbon nanofibers (CNFs) with magnetite nanoparticles in order to align CNFs in epoxy using a relatively weak magnetic field. Experimental results have shown that a weak magnetic field (∼mT) can align these newly-developed nanofiber hybrids to form a chain-like structure in the epoxy resin. Upon curing, the epoxy nanocomposites containing the aligned Fe3O4@CNFs show (i) greatly improved electrical conductivity in the alignment direction and (ii) significantly higher fracture toughness when the Fe3O4@CNFs are aligned normal to the crack surface, compared to the nanocomposites containing randomly-oriented Fe3O4@CNFs. The mechanisms underpinning the significant improvements in the fracture toughness have been identified, including interfacial debonding, pull-out, crack bridging and rupture of the Fe3O4@CNFs, and plastic void growth in the polymer matrix.

AB - Abstract Novel magnetite-carbon nanofiber hybrids (denoted by "Fe3O4@CNFs") have been developed by coating carbon nanofibers (CNFs) with magnetite nanoparticles in order to align CNFs in epoxy using a relatively weak magnetic field. Experimental results have shown that a weak magnetic field (∼mT) can align these newly-developed nanofiber hybrids to form a chain-like structure in the epoxy resin. Upon curing, the epoxy nanocomposites containing the aligned Fe3O4@CNFs show (i) greatly improved electrical conductivity in the alignment direction and (ii) significantly higher fracture toughness when the Fe3O4@CNFs are aligned normal to the crack surface, compared to the nanocomposites containing randomly-oriented Fe3O4@CNFs. The mechanisms underpinning the significant improvements in the fracture toughness have been identified, including interfacial debonding, pull-out, crack bridging and rupture of the Fe3O4@CNFs, and plastic void growth in the polymer matrix.

KW - Carbon nanofibers

KW - Magnetic field alignment

KW - Epoxy nanocomposites

UR - http://www.scopus.com/inward/record.url?scp=84929624202&partnerID=8YFLogxK

UR - http://purl.org/au-research/grants/arc/DP140100778

U2 - 10.1016/j.polymer.2015.04.080

DO - 10.1016/j.polymer.2015.04.080

M3 - Article

AN - SCOPUS:84929624202

VL - 68

SP - 25

EP - 34

JO - Polymer

JF - Polymer

SN - 0032-3861

ER -

Epoxy nanocomposites containing magnetite-carbon nanofibers aligned using a weak magnetic field

Abstract

Bibliographical note

Keywords

Access to Document

Other files and links

Fingerprint

Cite this