Effect of melting and crystallization on the conductive network in conductive polymer composites

被引:137
作者
Deng, Hua [1 ]
Skipa, Tetyana [3 ]
Zhang, Rui [1 ]
Lellinger, Dirk [3 ]
Bilotti, Emiliano [1 ]
Alig, Ingo [3 ]
Peijs, Ton [1 ,2 ]
机构
[1] Queen Mary Univ London, Ctr Mat Res, Sch Engn & Mat Sci, London E1 4NS, England
[2] Eindhoven Univ Technol, Eindhoven Polymer Labs, NL-5600 MB Eindhoven, Netherlands
[3] Deutsch Kunststoff Inst Darmstadt, D-64289 Darmstadt, Germany
关键词
Nanocomposites; Carbon nanotubes; Conductive network; CARBON NANOTUBE NETWORK; FILLED ELASTOMERS; ELECTRICAL-CONDUCTIVITY; PERCOLATION-THRESHOLD; MECHANICAL-BEHAVIOR; DYNAMIC PERCOLATION; TIME; NANOCOMPOSITES; REINFORCEMENT; DESTRUCTION;
D O I
10.1016/j.polymer.2009.05.016
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Investigation on the effect of melting and crystallization of polypropylene (PP) on the conductive network Of multi-wall carbon nanotubes (MWNTs) and carbon black (CB) in MWNT/PP and CB/PP composites is performed. The conductive networks formed by fillers with different aspect ratios (MWNTs and CB) are compared during melting and cooling experiments. The network is found to be deformed during melting and re-constructed again due to the re-agglomeration of fillers during isothermal annealing of the melt. Both deformation and re-construction of the network result in a substantial increase/decrease of the thermal resistivity of MWNT/PP and CB/PP composites. For the modelling of the dynamic network reformation three different approaches are tested: classic percolation theory, general effective medium theory (GEM) and Fournier equation. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码:3747 / 3754
页数:8
相关论文
共 47 条
[1]   Electrical conductivity recovery in carbon nanotube polymer composites after transient shear [J].
Alig, I. ;
Skipa, T. ;
Engel, M. ;
Lellinger, D. ;
Pegel, S. ;
Poetschke, P. .
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 2007, 244 (11) :4223-4226
[2]   Destruction and formation of a carbon nanotube network in polymer melts:: Rheology and conductivity spectroscopy [J].
Alig, Ingo ;
Skipa, Tetyana ;
Lellinger, Dirk ;
Poetschke, Petra .
POLYMER, 2008, 49 (16) :3524-3532
[3]   Destruction and formation of a conductive carbon nanotube network in polymer melts:: In-line experiments [J].
Alig, Ingo ;
Lellinger, Dirk ;
Engel, Martin ;
Skipa, Tetyana ;
Poetschke, Petra .
POLYMER, 2008, 49 (07) :1902-1909
[4]   Conductivity spectroscopy on melt processed polypropylene-multiwalled carbon nanotube composites:: Recovery after shear and crystallization [J].
Alig, Ingo ;
Lellinger, Dirk ;
Dudkin, Sergej M. ;
Poetschke, Petra .
POLYMER, 2007, 48 (04) :1020-1029
[5]   Anomalous power law dispersions in ac conductivity and permittivity shown to be characteristics of microstructural electrical networks [J].
Almond, DP ;
Bowen, CR .
PHYSICAL REVIEW LETTERS, 2004, 92 (15) :157601-1
[6]   Purification and structural annealing of multiwalled carbon nanotubes at graphitization temperatures [J].
Andrews, R ;
Jacques, D ;
Qian, D ;
Dickey, EC .
CARBON, 2001, 39 (11) :1681-1687
[7]   EFFECT OF INTERFACIAL ENERGY AND VISCOSITY ON PERCOLATION TIME OF CARBON BLACK-FILLED POLY(METHYL METHACRYLATE) [J].
ASAI, S ;
SUMITA, M .
JOURNAL OF MACROMOLECULAR SCIENCE-PHYSICS, 1995, B34 (03) :283-294
[8]   Electrical and mechanical properties of iodine-doped highly elongated ultrahigh molecular weight polyethylene films filled with multiwalled carbon nanotubes [J].
Bin, Yuezhen ;
Chen, Qingyun ;
Tashiro, Kohji ;
Matsuo, Masaru .
PHYSICAL REVIEW B, 2008, 77 (03)
[9]   Development of highly oriented polyethylene filled with aligned carbon nanotubes by gelation/crystallization from solutions [J].
Bin, YZ ;
Kitanaka, M ;
Zhu, D ;
Matsuo, M .
MACROMOLECULES, 2003, 36 (16) :6213-6219
[10]   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-+