Microstructure of carbon nanotubes/PET conductive composites fibers and their properties

被引：142

作者：

Li, ZF ^{[1
]}

Luo, GH ^{[1
]}

Wei, F ^{[1
]}

Huang, Y ^{[1
]}

机构：

[1] Tsinghua Univ, Dept Chem Engn, Beijing Key Lab Green React Engn & Technol, Beijing 100084, Peoples R China

来源：

COMPOSITES SCIENCE AND TECHNOLOGY | 2006年 / 66卷 / 7-8期

基金：

中国国家自然科学基金; 国家高技术研究发展计划(863计划);

关键词：

carbon nanotubes; PET; composite fiber; cloth with anti-static electricity; rheological; crystallization;

D O I：

10.1016/j.compscitech.2005.08.006

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

Poly(ethylene terephthalate) (PET) resin has been compounded with carbon nanotubes (CNTs) using a twin-screw extruder. The composites of 4 wt% CNTs in PET had a volume electrical resistance of 10(3) Omega Cm, which was 12 orders lower than pure PET. The volume electrical conductivity of CNTs/PET composites with different CNTs containing followed a percolation scaling law of the form sigma = k(rho-rho(c))(t) well. Scanning electron microscopy (SEM) micrograph showed that CNTs had been well dispersed in PET matrix. Optical microscopy micrograph showed that discontinuity of conductive phase existed in some segments of composite fiber. Rheological behavior of CNTs/PET composites showed that the viscosity of CNTs/PET composites containing high nanotube loadings exhibited a large decrease with increasing shear frequency. Crystallization behavior of CNTs/PET composites was studied by differential scanning calorimetry (DSC) and the nucleating effect of CNTs in the cooling crystallization process of PET was confirmed. Composite fiber was prepared using the conductive CNTs/PET composites and pure PET resin by composite spinning process. Furthermore, cloth was woven by the composite fiber and common terylene with the ratio 1:3. The cloth had excellent anti-static electricity property and its charge surface density was only 0.25 mu C/m(2). (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：1022 / 1029

页数：8

共 41 条

[1]

[Anonymous], 2002, POLYM RHEOLOGY

[2] Effect of the length and the aggregate size of MWNTs on the improvement efficiency of the mechanical and electrical properties of nanocomposites - experimental investigation [J].

Bai, JB ;

Allaoui, A .

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING, 2003, 34 (08) :689-694

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

Baughman, RH ;

Zakhidov, AA ;

de Heer, WA .

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

[4] Transport properties of PMMA-carbon nanotubes composites [J].

Benoit, JM ;

Corraze, B ;

Lefrant, S ;

Blau, WJ ;

Bernier, P ;

Chauvet, O .

SYNTHETIC METALS, 2001, 121 (1-3) :1215-1216

[5] Crystallization and orientation studies in polypropylene/single wall carbon nanotube composite [J].

Bhattacharyya, AR ;

Sreekumar, TV ;

Liu, T ;

Kumar, S ;

Ericson, LM ;

Hauge, RH ;

Smalley, RE .

POLYMER, 2003, 44 (08) :2373-2377

[6]

Brandrup J., 1999, Polymer handbook, VII

[7] Percolation-dominated conductivity in a conjugated-polymer-carbon-nanotube composite [J].

Coleman, JN ;

Curran, S ;

Dalton, AB ;

Davey, AP ;

McCarthy, B ;

Blau, W ;

Barklie, RC .

PHYSICAL REVIEW B, 1998, 58 (12) :R7492-R7495

[8] Aligning and reorienting carbon nanotubes with nematic liquid crystals [J].

Dierking, I ;

Scalia, G ;

Morales, P ;

LeClere, D .

ADVANCED MATERIALS, 2004, 16 (11) :865-869

[9] The dc and ac conductivity of polyaniline-polyvinyl alcohol blends [J].

Dutta, P ;

Biswas, S ;

Ghosh, M ;

De, SK ;

Chatterjee, S .

SYNTHETIC METALS, 2001, 122 (02) :455-461

[10] Water-based single-walled-nanotube-filled polymer composite with an exceptionally low percolation threshold [J].

Grunlan, JC ;

Mehrabi, AR ;

Bannon, MV ;

Bahr, JL .

ADVANCED MATERIALS, 2004, 16 (02) :150-+

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