Different carbon nanofillers derived from carbon nanotubes and graphite were fabricated and characterized to investigate their effects on enhancement of polymer composites. It could be concluded that a better enhancement effect would be achieved when the nanofillers possessed a higher O/C ratio and more wrinkled surface. As another key factor affecting the mechanical properties of composites, the dispersion status of nanofillers in matrix was quantitatively characterized by measuring the relative transmittance (RT) of the suspension. The RT curve varying with time was fitted by a sigmoidal growth function and a key parameter was calculated to discribe the dispersibility of the nanofillers. It was found that the dispersibility of nanofillers was approximately proportional to the enhancement effect on the resulted composites. So, the mechanical properties of the composites could be estimated by investigating the dispersibility of nanofillers in matrix.
REFERENCES
1.
A. K.
Geim
and K. S.
Novoselov
, “The rise of graphene
,” Nature Mater.
6
, 183
–191
(2007
).2.
K. S.
Novoselov
, A. K.
Geim
, S. V.
Morozov
, D.
Jiang
, Y.
Zhang
, S. V.
Dubonos
, I. V.
Grigorieva
, and A. A.
Firsov
, “Electric field effect in atomically thin carbon films
,” Science
306
, 666
–669
(2004
).3.
H. C.
Schniepp
, J. L.
Li
, M. J.
McAllister
, H.
Sai
, M.
Herrera-Alonso
, D. H.
Adamson
, R. K.
Prud'homme
, R.
Car
, D. A.
Saville
, and I. A.
Aksay
, “Functionalized single graphene sheets derived from splitting graphite oxide
,” J. Phys. Chem. B
110
, 8535
–8539
(2006
).4.
S.
Stankovich
, D. A.
Dikin
, R. D.
Pineret
, K. A.
Kohlhaas
, A.
Kleinhammes
, Y.
Jia
, Y.
Wu
, S. T.
Nguyen
, and R. S.
Ruoff
, “Synthesis of graphene-based nanosheets via chemical reduction of exfoliated graphite oxide
,” Carbon
45
, 1558
–1565
(2007
).5.
B.
Das
, K. E.
Prasad
, U.
Ramamurty
, and C. N. R.
Rao
, “Nano-indentation studies on polymer matrix composites reinforced by few-layer grapheme
,” Nanotechnology
20
, 125705
(2009
).6.
K. T.
Lau
and D.
Hui
, “Effectiveness of using carbon nanotubes as nanoreinforcements for advanced composite structures
,” Carbon
40
, 1605
–1606
(2002
).7.
F. H.
Gojny
and K.
Schulte
, “Functionalization effect on the thermo-mechanical behaviour of multi-wall carbon nanotube/epoxy-composites
,” Compos. Sci. Technol.
64
, 2303
–2308
(2004
).8.
F. H.
Gojny
, M. H. G.
Wichmann
, B.
Fiedler
, and K.
Schulte
, “Influence of different carbon nanotubes on the mechanical properties of epoxy matrix composites—A comparative study
,” Compos. Sci. Technol.
65
, 2300
–2313
(2005
).9.
A. G.
Cano-Marquez
, F. J.
Rodriguez-Macias
, J.
Campos-Delgado
, C. G.
Espinosa-Gonzalez
, F.
Tristan-Lopez
, D.
Ramirez-Gonzalez
, F. A.
Cullen
, D. J.
Smith
, M.
Terrones
, and Y. I.
Vega-Cantu
, “Ex-MWNTs: Graphene sheets and ribbons produced by lithium intercalation and exfoliation of carbon nanotubes
,” Nano Lett.
9
, 1527
–1533
(2009
).10.
D. V.
Kosynkin
, A. L.
Higginbotham
, A.
Sinitskii
, J. R.
Lomeda
, A.
Dimiev
, and B. K.
Price
, “Longitudinal unzipping of carbon nanotubes to form graphene nanoribbons
,” Nature
458
, 872
–877
(2009
).11.
L.
Jiao
, L.
Zhang
, X. R.
Wang
, G.
Diankov
, and H. J.
Dai
, “Narrow graphene nanoribbons from carbon nanotubes
,” Nature
458
, 877
–880
(2009
).12.
K.
Kim
, A.
Sussman
, and A.
Zettl
, “Graphene nanoribbons obtained by electrically unwrapping carbon nanotubes
,” ACS Nano
4
, 1362
–1366
(2010
).13.
M. A.
Rafiee
, J.
Rafiee
, Z.
Wang
, H. H.
Song
, Z.
Yu
, and N.
Koratkar
, “Enhanced mechanical properties of nanocomposites at low graphene content
,” ACS Nano
3
, 3884
–3890
(2009
).14.
M. A.
Rafiee
, J.
Rafiee
, I.
Srivastava
, Z.
Wang
, H. H.
Song
, Z.-Z.
Yu
, and N.
Koratkar
, “Fracture and fatigue in graphene nanocomposites
,” Small
6
, 179
–183
(2010
).15.
M. A.
Rafiee
, W.
Lu
, A. V.
Thomas
, A.
Zandiatashbar
, J.
Rafiee
, J. M.
Tour
, and N. A.
Koratkar
, “Graphene nanoribbon composites
,” ACS Nano
4
, 7415
–7420
(2010
).16.
J. B.
Bai
and A.
Allaoui
, “Effect of the length and aggregates of MWNTs on the improvement efficiency of the mechanical and electrical properties of nanocomposites experimental investigation
,” Composites, Part A
34
, 689
–694
(2005
).17.
D.
Qian
, E. C.
Dickey
, R.
Andrews
, and T.
Rantell
, “Load transfer and deformation mechanisms in carbon nanotubes-polystyrene composites
,” Appl. Phys. Lett.
76
, 2868
–2870
(2000
).18.
C.
Park
, Z.
Ounaies
, K. A.
Watson
, R. E.
Crooks
, J.
Smith
, S. E.
Lowther
, J. W.
Connell
, E. J.
Siochi
, J. S.
Harrison
, and T. L.
St Clair
, “Dispersion of single wall carbon nanotubes by in situ polymerization under sonication
,” Chem. Phys. Lett.
364
, 303
–308
(2002
).19.
X. L.
Xie
, Y. W.
Mai
, and X. P.
Zhou
, “Dispersion and alignment of carbon nanotubes in polymer matrix: A review
,” Mater. Sci. Eng. R.
49
, 89
–112
(2005
).20.
C.
Zhao
, G.
Hu
, R.
Justice
, D. W.
Schaefer
, S.
Zhang
, M.
Yang
, and C. C.
Han
, “Synthesis and characterization of multi-walled carbon nanotubes reinforced polyamide 6 via in situ polymerization
,” Polymer
46
, 5125
–5132
(2005
).21.
S. J.
Park
, M. S.
Cho
, S. T.
Lim
, H. J.
Choi
, and M. S.
John
, “Synthesis and dispersion characteristics of multi-walled carbon nanotube composites with poly(methyl methacrylate) prepared by in situ bulk polymerization
,” Macromol. Rapid Commun.
24
, 1070
–1073
(2003
).22.
Y.
Jiang
, Y. F.
Zhu
, F. Y.
Wang
, and W. J.
Chen
, “Effects of plasma and acid treatment on the dispersion of carbon nanotubes in liquids
,” Plasma Chem. Plasma Process.
31
, 441
–448
(2011
).23.
C.
Petit
and T. J.
Bandosz
, “Graphite oxide/polyoxometalate composites as adsorbents of ammonia
,” J. Phys. Chem. C
113
, 3800
–3809
(2009
).24.
H.
Kim
, A. A.
Abdala
, and C. W.
Macosko
, “Graphene/polymer nanocomposites
,” Macromolecules
43
, 6515
–6530
(2010
).25.
X. L.
Li
, G. Y.
Zhang
, X. D.
Bai
, X. M.
Sun
, X. R.
Wang
, E.
Wang
, and H. J.
Dai
, “Highly conducting graphene sheets and Langmuir-Blodgett films
,” Nat. Nanotechnol.
3
, 538
–542
(2008
).26.
G.
Wang
, B.
Wang
, J.
Park
, J.
Yang
, X.
Shen
, and J.
Yao
, “Synthesis of enhanced hydrophilic and hydrophobic graphene oxide nanosheets by a solvothermal method
,” Carbon
47
, 68
–72
(2009
).27.
C.
Nethravathi
and M.
Rajamathi
, “Chemically modified graphene sheets produced by the solvothermal reduction of colloidal dispersions of graphite oxide
,” Carbon
46
, 1994
–1998
(2008
).28.
Y. H.
Ding
, P.
Zhang
, Q.
Zhuo
, M. H.
Ren
, Z. M.
Yang
, and Y.
Jiang
, “A green approach to the synthesis of reduced graphene oxide nanosheets under UV irradiation
,” Nanotechnology
22
, 215601
(2011
).29.
J. I.
Paredes
, S.
Villar-Rodil
, A.
Martinez-Alonso
, and J. M. D.
Tascon
, “Graphene oxide dispersions in organic solvents
,” Langmuir
24
, 10560
–10564
(2008
).30.
Y.
Si
and E. T.
Samulski
, “Synthesis of water soluble graphene
,” Nano Lett.
8
, 1679
–1682
(2008
).31.
S.
Stankovich
, R. D.
Piner
, S. T.
Nguyen
, and R. S.
Ruoff
, “Synthesis and exfoliation of isocyanate-treated graphene oxide nanoplatelets
,” Carbon
44
, 3342
–3347
(2006
).32.
L. M.
Malard
, M. A.
Pimenta
, G.
Dresselhaus
, and M. S.
Dresselhaus
, “Raman spectroscopy in graphene
,” Phys. Rep.
473
, 51
–87
(2009
).33.
A. C.
Ferrari
, J. C.
Meyer
, V.
Scardaci
, C.
Casiraghi
, M.
Lazzeri
, F.
Mauri
, S.
Piscanec
, D.
Jiang
, K. S.
Novoselov
, S.
Roth
et al., “Raman spectrum of graphene and graphene layers
,” Phys. Rev. Lett.
97
, 187401
(2006
).34.
S. Y.
Yang
, W. N.
Lin
, Y. L.
Huang
, H. W.
Tien
, J. Y.
Wang
, C. C.
Ma
, S. M.
Li
, and Y. S.
Wang
, “Synergetic effects of graphene platelets and carbon nanotubes on the mechanical and thermal properties of epoxy composites
,” Carbon
49
, 793
–803
(2011
).35.
S.
Chatterjee
, F. A.
Nuesch
, and B. T. T.
Chu
, “Comparing carbon nanotubes and graphene nanoplatelets as reinforcements in polyamide 12 composites
,” Nanotechnology
22
, 275714
(2011
).36.
A.
O'Neill
, U.
Khan
, P. N.
Nirmalraj
, J.
Boland
, and J. N.
Coleman
, “Graphene dispersion and exfoliation in low boiling point solvents
,” J. Phys. Chem. C
115
, 5422
–5428
(2011
).© 2012 American Institute of Physics.
2012
American Institute of Physics
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