On the influence of the processing conditions on the performance of electrically conductive carbon nanotube/polymer nanocomposites

被引：82

作者：

Grossiord, Nadia ^{[1
,6
]}

Kivit, Patrick J. J. ^{[1
,6
]}

Loos, Joachim ^{[2
,3
,6
]}

Meuldijk, Jan ^{[4
]}

Kyrylyuk, Andriy V. ^{[5
,6
]}

van der Schoot, Paul ^{[3
,5
,6
]}

Koning, Cor E. ^{[1
,6
]}

机构：

[1] Eindhoven Univ Technol, Polymer Chem Lab, NL-5600 MB Eindhoven, Netherlands

[2] Eindhoven Univ Technol, Lab Polymer Technol, NL-5600 MB Eindhoven, Netherlands

[3] Eindhoven Univ Technol, Lab Mat & Interface Chem, NL-5600 MB Eindhoven, Netherlands

[4] Eindhoven Univ Technol, Proc Dev Grp, NL-5600 MB Eindhoven, Netherlands

[5] Eindhoven Univ Technol, Theoret & Polymer Phys Grp, NL-5600 MB Eindhoven, Netherlands

[6] Dutch Polymer Inst, NL-5600 AX Eindhoven, Netherlands

来源：

POLYMER | 2008年 / 49卷 / 12期

关键词：

nanocomposites; conductivity; processing conditions;

D O I：

10.1016/j.polymer.2008.04.033

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

We prepared multiwalled carbon nanotube/polystyrene (MWCNT/PS) nanocomposites using a latex-based process, the main step of which consists of directly mixing an aqueous suspension of exfoliated MWCNTs and a PS latex, both stabilized by an anionic surfactant. After freeze drying and compression molding homogeneous polymer films with well-dispersed carbon nanotubes were produced as evidenced by scanning electron microscopy. Conductivity measurements performed on our nano-composite films show that they have a low percolation threshold and exhibit high levels of electrical conductivity above this threshold. We observe that both these properties are influenced by the applied processing conditions, i.e., temperature and time, and provide a plausible explanation based on the diffusive motion of the MWNTs in the polymer melt during the compression molding stage. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：2866 / 2872

页数：7

共 57 条

[1] Anomalous temperature dependence of the electrical conductivity of carbon-poly(methyl methacrylate) composites [J].

Alexander, MG .

MATERIALS RESEARCH BULLETIN, 1999, 34 (04) :603-611

[2] Percolation and tunneling in composite materials [J].

Balberg, I ;

Azulay, D ;

Toker, D ;

Millo, O .

INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 2004, 18 (15) :2091-2121

[3] DC and AC conductivity of carbon nanotubes-polyepoxy composites [J].

Barrau, S ;

Demont, P ;

Peigney, A ;

Laurent, C ;

Lacabanne, C .

MACROMOLECULES, 2003, 36 (14) :5187-5194

[4] Carbon nanotubes - the route toward applications [J].

Baughman, RH ;

Zakhidov, AA ;

de Heer, WA .

SCIENCE, 2002, 297 (5582) :787-792

[5] Very low conductivity threshold in bulk isotropic single-walled carbon nanotube-epoxy composites [J].

Bryning, MB ;

Islam, MF ;

Kikkawa, JM ;

Yodh, AG .

ADVANCED MATERIALS, 2005, 17 (09) :1186-+

[6] DO INTERACTIONS RAISE OR LOWER A PERCOLATION-THRESHOLD [J].

BUG, ALR ;

SAFRAN, SA ;

GREST, GS ;

WEBMAN, I .

PHYSICAL REVIEW LETTERS, 1985, 55 (18) :1896-1899

[7] PAIR CONNECTEDNESS AND CLUSTER SIZE [J].

CONIGLIO, A ;

DEANGELIS, U ;

FORLANI, A .

JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, 1977, 10 (07) :1123-1139

[8] Broadband ac conductivity of conductor-polymer composites [J].

Connor, MT ;

Roy, S ;

Ezquerra, TA ;

Calleja, FJB .

PHYSICAL REVIEW B, 1998, 57 (04) :2286-2294

[9] Viscoelastic behavior and electrical properties of flexible nanofiber filled polymer nanocomposites.: Influence of processing conditions [J].

Dalmas, Florent ;

Cavaille, Jean-Yves ;

Gauthier, Catherine ;

Chazeau, Laurent ;

Dendievel, Remy .

COMPOSITES SCIENCE AND TECHNOLOGY, 2007, 67 (05) :829-839

[10]

DOI M, 1988, J CHEM PHYS, V88, P4070, DOI 10.1063/1.453861

← 1 2 3 4 5 6 →