Comparative study of multiwalled carbon nanotube/polyethylene composites produced via different techniques

被引：21
|
作者：
Kazakova, M. A. [1 ,2 ]
Kuznetsov, V. L. [1 ,2 ,4 ]
Semikolenova, N. V. [1 ]
Moseenkov, S. I. [1 ]
Krasnikov, D. V. [1 ,2 ]
Matsko, M. A. [1 ]
Ishchenko, A. V. [1 ,2 ]
Zakharov, V. A. [1 ]
Romanenko, A. I. [2 ,3 ]
Anikeeva, O. B. [3 ]
Tkachev, E. N. [3 ]
Suslyaev, V. I. [4 ]
Zhuravlev, V. A. [4 ]
Dorozkin, K. V. [4 ]
机构：
[1] SB RAS, Boreskov Inst Catalysis, Novosibirsk 630090, Russia
[2] Novosibirsk State Univ, Novosibirsk 630090, Russia
[3] SB RAS, Nikolaev Inst Inorgan Chem, Novosibirsk 630090, Russia
[4] Natl Res Tomsk State Univ, Tomsk 634050, Russia
来源：
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS | 2014年 / 251卷 / 12期
基金：
俄罗斯基础研究基金会;
关键词：
composites; electromagnetic properties; in situ polymerization; multiwalled carbon nanotubes; polyethylene; NANOTUBES; ACTIVATION;
D O I：
10.1002/pssb.201451194
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
A comparative study of multiwalled carbon nanotube/polyethylene (MWCNT/PE) composites produced by different methods (thermal mechanical mixing, coagulation precipitation technique and in situ ethylene polymerization with a Ziegler-Natta catalyst supported on MWCNTs) has been performed. The morphology and structure of the produced composites were investigated by optical, scanning and transmission electron microscopies. MWCNT incorporation into PE matrix results in the change of conductivity mechanism from conductivity typical of a system with local disorder and effects of weak interaction of electrons (quantum correction to conductivity) to conductivity that can be described within the theory of Coulomb blockade or quasi-one-dimensional variable-range hopping conductivity with variable length of hops (Mott's law) between localized states. The electromagnetic (EM) response of composites was investigated in a broadband region (118-510GHz). It was found that the dielectric properties of MWCNT/PE composites correlate with their electrophysical properties determined by the MWCNT distribution within the polymer matrix. [GRAPHICS] Typical TEM image of MWCNT in polyethylene matrix. Distance between nanotubes filled with PE varies within a wide range (C) 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
引用
收藏
页码：2437 / 2443
页数：7
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