Research Article
A Study of Surface Modifications of Carbon Nanotubes on the Properties of Polyamide 66/Multiwalled Carbon Nanotube Composites
Table 2
Mechanical properties deduced from the nanoindentation test.
| | Specimen | Reduced modulus (GPa) | Elastic modulus (GPa) | Hardness (GPa) | | Before test | After test | Before test | After test | Before test | After test |
| | PA66 | 2.9927 | 3.8911 | 1.7699 | 2.3029 | 0.2191 | 0.2779 | | PA66/P-MWCNTs | 3.0865 | 3.1707 | 1.8255 | 1.8755 | 0.2215 | 0.2335 | | PA66/A-MWCNTs | 3.2916 | 3.1028 | 1.9472 | 1.8352 | 0.2218 | 0.2293 | | PA66/D-MWCNTs | 3.0887 | 3.0938 | 1.8268 | 1.8299 | 0.2317 | 0.2271 |
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