|
NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR) >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Engineering and Materials Sciences (IJEMS) >
IJEMS Vol.17 [2010] >
IJEMS Vol.17(5) [October 2010] >
| Title: | Mechanical properties of multi-walled carbon nanotubes reinforced polymer nanocomposites |
| Authors: | Ramana, G Venkata
Padya, Balaji
Kumar, R Naresh
Prabhakar, K V P
Jain, P K |
| Keywords: | Carbon nanotubes
Dispersion
Flexural properties
Nanocomposites |
| Issue Date: | Oct-2010 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Carbon nanotubes
(CNTs ) are considered to be one of the novel reinforcement for developing
advanced nanocomposites due to their outstanding thermo-mechanical properties.
Multi-walled carbon nanotubes (MWCNTs ) are developed by arc discharge method.
To enhance the dispersion of CNTs in polymer matrix, CNTs are modified with
chemical treatment and processed by ultrasonication process. Surface
characterization of CNTs is examined by XPS technique to confirm the different
functional groups attached to the surface. Epoxy based polymer composites are
developed by dispersing of pristine and surface modified CNTs as reinforcement
in different concentrations varying from 0.2 to 1.0 wt% and found that with 1
wt% gives the best result. Detailed rheological studies are carried out to know
the dispersion of CNTs in matrix. FESEM studies are carried out to observe the
morphology of reinforcing materials as well as its dispersion in the polymer
matrix and the effect of reinforcement on fractography is also investigated.
The thermal stability of the composites is measured using thermo-gravimetric
analysis (TGA) and observed that composites made with surface modified CNT showed
higher thermal stability as compared with pure epoxy and pristine CNTs.
Enhancement in flexural properties is observed with surface modified CNTs. |
| Page(s): | 331-337 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-1017 (Online); 0971-4588 (Print) |
| Source: | IJEMS Vol.17(5) [October 2010]
|
|
