Nano-/Microscale Investigation of Tribological and Mechanical Properties of Epoxy/MWNT Nanocomposites

被引：45
|
作者：
Ayatollahi, Majid Reza [1 ]
Doagou-Rad, Saeed [1 ]
Shadlou, Shahin [1 ]
机构：
[1] Iran Univ Sci & Technol, Fatigue & Fracture Res Lab, Ctr Excellence Expt Solid Mech & Dynam, Sch Mech Engn, Tehran 1684613114, Iran
来源：
MACROMOLECULAR MATERIALS AND ENGINEERING | 2012年 / 297卷 / 07期
关键词：
atomic force microscopy (AFM); epoxy; hardness; indentation; nanocomposites; DEPTH-SENSING INDENTATION; CARBON NANOTUBES; POLYMERIC SURFACES; ELASTIC-MODULUS; SCRATCH HARDNESS; COMPOSITES; BEHAVIOR; FRICTION; WEAR; NANOINDENTATION;
D O I：
10.1002/mame.201100271
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effects of MWNT content and aspect ratio on the properties of epoxy-based nanocomposites are investigated using nanoindentation and nanoscratch methods. The Halpin-Tsai model for predicting the elastic modulus and hardness is modified to include the effective aspect ratio factor. The modified model predicts the experimental results more accurately. The frictional behavior is investigated and a new equation is proposed that correlates the ploughing friction with the plasticity index. The dispersion state of MWNTs and the surface features of residual grooves are investigated using scanning electron micrographs and AFM profiles. The mechanisms of improvements in the properties are also discussed.
引用
收藏
页码：689 / 701
页数：13
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