Carbon nanotubes/cyanate ester composites with low percolation threshold, high dielectric constant and outstanding thermal property

被引：74

作者：

Han, Caifei ^{[1
]}

Gu, Aijuan ^{[1
]}

Liang, Guozheng ^{[1
]}

Yuan, Li ^{[1
]}

机构：

[1] Soochow Univ, Coll Chem Chem Engn & Mat Sci, Dept Mat Sci & Engn, Suzhou 215123, Jiangsu, Peoples R China

来源：

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2010年 / 41卷 / 09期

基金：

中国国家自然科学基金;

关键词：

Polymer-matrix composites (PMCs); Electrical properties; Theromosetting resin; Thermal properties; POLYMER COMPOSITES; MECHANICAL-PROPERTIES; EPOXY-RESIN; BEHAVIOR; CONDUCTIVITY; DISPERSION; NANOCOMPOSITES; DICYANATE; FILMS;

D O I：

10.1016/j.compositesa.2010.05.016

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A novel kind of multi-walled carbon nanotubes (MWCNTs)/cyanate ester (CE) composites with low percolation threshold, high dielectric constant and excellent thermal property was developed. In order to investigate the effect of the surface nature of MWCNTs on the morphology and properties of the composites. MWCNTs and surface treated carbon nanotubes (MWCNTs-OH) were used to prepare two sorts of composites, coded as M/CE and M-OH/CE, respectively Results show that increasing the content of MWCNTs or MWCNTs-OH, the dielectric constant of both kinds of composites initially increases until reaches the maximum value, and then decreases In addition, when the percolation occurs, dielectric constant and loss of both kinds of composites decrease quickly with the increase of the tested frequency. The addition of MWCNTs into CE decreases the glass transition temperature and thermal stability, while the incoi poration of MWCNTs-OH significantly improves the thermal stability of CE resin. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：1321 / 1328

页数：8

共 32 条

[1]

[Anonymous], 2009, EUR POLYM J, DOI DOI 10.1016/J.EURPOLYMJ.2008.11.001

[2] High-dielectric-constant ceramic-powder polymer composites [J].

Bai, Y ;

Cheng, ZY ;

Bharti, V ;

Xu, HS ;

Zhang, QM .

APPLIED PHYSICS LETTERS, 2000, 76 (25) :3804-3806

[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] CRITICAL BEHAVIOR OF COMPLEX DIELECTRIC-CONSTANT NEAR PERCOLATION THRESHOLD OF A HETEROGENEOUS MATERIAL [J].

BERGMAN, DJ ;

IMRY, Y .

PHYSICAL REVIEW LETTERS, 1977, 39 (19) :1222-1225

[6] Electrically conductive in situ microfibrillar composite with a selective carbon black distribution: An unusual resistivity-temperature behavior upon cooling [J].

Dai, Kun ;

Li, Zhong-Ming ;

Xu, Xiang-Bin .

POLYMER, 2008, 49 (04) :1037-1048

[7] Giant dielectric permittivities in functionalized carbon-nanotube/electroactive-polymer nanocomposites [J].

Dang, Zhi-Min ;

Wang, Lan ;

Yin, Yi ;

Zhang, Qing ;

Lei, Qing-Qua .

ADVANCED MATERIALS, 2007, 19 (06) :852-+

[8] Dielectric behavior and dependence of percolation threshold on the conductivity of fillers in polymer-semiconductor composites [J].

Dang, ZM ;

Nan, CW ;

Xie, D ;

Zhang, YH ;

Tjong, SC .

APPLIED PHYSICS LETTERS, 2004, 85 (01) :97-99

[9] Novel ferroelectric polymer composites with high dielectric constants [J].

Dang, ZM ;

Lin, YH ;

Nan, CW .

ADVANCED MATERIALS, 2003, 15 (19) :1625-+

[10] Dielectric behaviour of thin films of beta-PVDF/PZT and beta-PVDF/BaTiO3 composites [J].

Gregorio, R ;

Cestari, M ;

Bernardino, FE .

JOURNAL OF MATERIALS SCIENCE, 1996, 31 (11) :2925-2930

← 1 2 3 4 →