Abstract
The nano-alumina (nano-Al2O3) particles were modified by silicon coupling agent KH-550, and the epoxy matrix nanocompo-sites were prepared by using nano-Al2O3 as reinforcing agent. The dispersion status was studied by transmission electron microscope (TEM). On this basis, effects of nano-Al2O3 content on dielectric and mechanical properties of the nanocomposites were studied. Morphologies of the fracture surface of nano-Al2O3/epoxy compo-sites were observed by scanning electron microscope (SEM). As a result, the mechanical properties reached to the best when the nano-Al2O3 content is 20%. The impact strength, flexural modulus and flexural strength increased by 84%, 29% and 18% respectively. The relative dielectric constant and the dielectric loss tangent were increased with nano-Al2O3 content.
| Original language | English |
|---|---|
| Pages (from-to) | 384-388 |
| Number of pages | 5 |
| Journal | Polymer - Plastics Technology and Engineering |
| Volume | 48 |
| Issue number | 4 |
| DOIs | |
| State | Published - 2009 |
Keywords
- Dielectric properties
- Epoxy resin
- Mechanical properties
- Nano-alumina (nano-AlO)
- Nanocomposites
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