Mechanical model to evaluate the effect of the dispersion in nanocomposites

被引：285

作者：

Guzman de Villoria, R. ^{[1
]}

Miravete, A. ^{[1
]}

机构：

[1] Univ Zaragoza, Dept Mech Engn, Zaragoza 50018, Spain

来源：

ACTA MATERIALIA | 2007年 / 55卷 / 09期

关键词：

micromechanical modeling; nanocomposite; mechanical properties; carbon nanotubes;

D O I：

10.1016/j.actamat.2007.01.007

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A key parameter in taking advantage of the exceptional mechanical and physical properties of carbon nanotubes (CNT) is getting a homogeneous dispersion of the nanofiller in the matrix. Micromechanical models are used to predict the properties of composites, but in most cases the calculated results are not comparable with those from experimentation. In the ease of epoxy matrices, poorly dispersed CNT are obtained, as has been observed by scanning electron microscopy. The influence of the dispersion in nanocomposite stiffness is estimated developing a new micromechanical model. Several micromechanical models and experimental results are compared with this new model, showing that the latter has better agreement with mechanical tests. In addition, this mathematical formulation could be used with other reinforcements that are poorly dispersed, not only with CNT. (c) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：3025 / 3031

页数：7

共 17 条

[1]

*AENOR, 1996, 5272 UNEEN ISO

[2]

*AENOR, 1996, 5211 UNEEN ISO

[3]

[Anonymous], 1991, MECH COMPOSITE MAT

[4] Detachment of nanotubes from a polymer matrix [J].

Cooper, CA ;

Cohen, SR ;

Barber, AH ;

Wagner, HD .

APPLIED PHYSICS LETTERS, 2002, 81 (20) :3873-3875

[5] Distribution and alignment of carbon nanotubes and nanofibrils in a polymer matrix [J].

Cooper, CA ;

Ravich, D ;

Lips, D ;

Mayer, J ;

Wagner, HD .

COMPOSITES SCIENCE AND TECHNOLOGY, 2002, 62 (7-8) :1105-1112

[6] Mechanical properties of SWNT/epoxy composites using two different curing cycles [J].

de Villoria, RG ;

Miravete, A ;

Cuartero, J ;

Chiminelli, A ;

Tolosana, N .

COMPOSITES PART B-ENGINEERING, 2006, 37 (4-5) :273-277

[7] Surface modified multi-walled carbon nanotubes in CNT/epoxy-composites [J].

Gojny, FH ;

Nastalczyk, J ;

Roslaniec, Z ;

Schulte, K .

CHEMICAL PHYSICS LETTERS, 2003, 370 (5-6) :820-824

[8] Carbon nanotube-reinforced epoxy-compo sites:: enhanced stiffness and fracture toughness at low nanotube content [J].

Gojny, FH ;

Wichmann, MHG ;

Köpke, U ;

Fiedler, B ;

Schulte, K .

COMPOSITES SCIENCE AND TECHNOLOGY, 2004, 64 (15) :2363-2371

[9] HELICAL MICROTUBULES OF GRAPHITIC CARBON [J].

IIJIMA, S .

NATURE, 1991, 354 (6348) :56-58

[10] Mechanical characterization of carbon nanotube composite materials [J].

Laborde-Lahoz, P ;

Maser, W ;

Martínez, T ;

Benito, A ;

Seeger, T ;

Cano, P ;

de Villoria, RG ;

Miravete, A .

MECHANICS OF ADVANCED MATERIALS AND STRUCTURES, 2005, 12 (01) :13-19

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