Abstract
In this study, the effect of silane treatment of Fe 3 O 4 on the magnetic and wear properties of Fe 3 O 4 /epoxy nanocomposites was investigated. Fe 3 O 4 nanopowders were prepared by coprecipitation of iron(II) chloride tetrahydrate with iron(III) chloride hexahydrate, and the surfaces of Fe 3 O 4 were modified with 3-aminopropyltriethoxysilane. The magnetic properties of the powders were measured on unmodified and surface-modified Fe 3 O 4 /epoxy nanocomposites using SQUID magnetometer. Wear tests were performed on unmodified and surface-modified Fe 3 O 4 /epoxy nanocomposites under the same conditions (sliding speed: 0.18 m/s, load: 20 N). The results showed that the saturation magnetization (M s ) of surface-modified Fe 3 O 4 /epoxy nanocomposites was approximately 110% greater than that of unmodified Fe 3 O 4 /epoxy nanocomposites. This showed that the specific wear rate of surface-modified Fe 3 O 4 /epoxy nanocomposites was lower than that of unmodified Fe 3 O 4 /epoxy nanocomposites. The decrease in wear rate and the increase in magnetic properties of surface-modified Fe 3 O 4 /epoxy nanocomposites occurred due to the improved dispersion of Fe 3 O 4 into the epoxy matrix.
| Original language | English |
|---|---|
| Pages (from-to) | 6945-6950 |
| Number of pages | 6 |
| Journal | Applied Surface Science |
| Volume | 256 |
| Issue number | 23 |
| DOIs | |
| Publication status | Published - 15 Sept 2010 |
| Externally published | Yes |
Keywords
- Magnetization
- Nanocomposites
- Silane
- Wear test