Buy article PDF
The purchased file will be sent to you
via email after the payment is completed.
US$ 35
|
Structural Engineering and Mechanics Volume 56, Number 2, October25 2015 , pages 157-167 DOI: https://doi.org/10.12989/sem.2015.56.2.157 |
|
|
|
Effects of mixed contents of carbon nanoreinforcements on the impact resistance of epoxy-based nanocomposites |
||
M.R. Ayatollahi, A.R. Naeemi and E. Alishahi
|
||
| Abstract | ||
| The impact behavior of epoxy-based nanocomposites reinforced with carbon nano tube (CNT), carbon nano fiber (CNF) and mixed contents of these nanoparticles was investigated using Izod impact test. The results showed that while the impact strength of nanocomposites containing 1 wt% of CNT and 1 wt% of CNF increased 19% and 13% respectively, addition of mixed contents of these nanofillers (0.5-0.5 wt%) demonstrated higher improvement (21%) in the impact resistance. The trend of the results is explained on the basis of different fracture mechanisms of nanocomposites. Furthermore, the fracture surface of specimens and the dispersion state of nanoenhancers have been studied using scanning electron microscopy (SEM) photographs. | ||
| Key Words | ||
| nano-structures; resins; impact behavior; mechanical testing | ||
| Address | ||
| M.R. Ayatollahi, A.R. Naeemi and E. Alishahi: Fatigue and Fracture Laboratory, Center of Excellence in Experimental Solid Mechanics and Dynamics, School of Mechanical Engineering, Iran University of Science and Technology, Narmak, Tehran, Iran | ||