Interface Dissipative Mechanisms in an Elastomeric Matrix Reinforced with MWCNTs

被引：3

作者：

Aurilia, Marco ^{[1
]}

Sorrentino, Luigi ^{[2
]}

Iannace, Salvatore ^{[2
]}

机构：

[1] IMAST Technol Dist Polymer & Composite Mat Engn &, I-80133 Naples, Italy

[2] CNR IMCB Natl Res Council, Inst Composite & Biomed Mat, I-80055 Naples, Italy

来源：

MACROMOLECULAR THEORY AND SIMULATIONS | 2013年 / 22卷 / 03期

关键词：

elastomer; modeling; nanotubes; strain energy dissipation; thermoplastic polyurethane; CARBON-NANOTUBE FIBERS; ENERGY-DISSIPATION; POLYMER COMPOSITES; SINGLE;

D O I：

10.1002/mats.201200070

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Dissipative mechanisms occurring at the interface between multiwall nanotubes (MWCNT) and an elastomeric matrix are investigated and quantitatively predicted through analytical equations derived from a micromechanical model. The effects of MWCNT aspect ratio on dissipative properties of the reinforced system are investigated at high strains (100300%). Cyclic tensile tests illustrate that the fraction of dissipated strain energy increases with the amount of MWCNT and varies with their aspect ratio. Lower mean diameter MWCNT are able to dissipate a higher amount of strain energy. The model developed on the basis of the shear lag theory correctly predicts the dissipated strain energy at high strains, taking into account the different contributions to the mechanical behavior of nanotubes' different aspect ratios.

引用

页码：198 / 206

页数：9

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