| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Virtanen, Suvi
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2019Understanding the cross-linking reactions in highly oxidized graphene/epoxy nanocomposite systemscitations
- 2016Dielectric breakdown strength and electrical conductivity of low density polyethylene octylnanosilica composite
- 2015Large-area dielectric breakdown performance of polymer films:Part II: Interdependence of filler content, processing and breakdown performance in polypropylene-silica nanocompositescitations
- 2015Bimodal dielectric nanoparticles and nanocomposites
- 2015Balanced nanocomposite thermosetting materials for HVDC and AC applications
- 2014Structure and dielectric breakdown strength of nano calcium carbonate/polypropylene compositescitations
- 2014Improved dielectric breakdown strength using bimodal functionalized silica nanoparticles
- 2014Dielectric breakdown strength of epoxy bimodal-polymer-brush-grafted core functionalized silica nanocompositescitations
- 2014Influence of low amounts of nanostructured silica and calcium carbonate fillers on the large-area dielectric breakdown performance of bi-axially oriented polypropylenecitations
- 2013Structural studies of dielectric polymer nanocomposites
- 2011Characterization of octamethylsilsesquioxane (CH3)8Si8O12 fillers in polypropene matrix
- 2010Dielectric properties and partial discharge endurance of polypropylene-silica nanocompositecitations
Places of action
| Organizations | Location | People |
|---|
document
Characterization of octamethylsilsesquioxane (CH3)8Si8O12 fillers in polypropene matrix
Abstract
The results of Raman microspectroscopy measurements of octamethylsilsesquioxane (om-POSS) (3-wt %) in polypropylene (PP) are presented and compared with theoretical spectra calculated by ab initio density functional theory (DFT) based methods. The internal structure of this dielectric composite at the micrometer level was obtained by Computerized X-ray microtomography (CX?T) which reveals how micron-scale filler particles are distributed in the matrix media. The X–ray powder diffraction (XPD) was used to determine the om-POSS inner crystallite size that is in a nanometer range. Transmission electron microscopy (TEM) images confirm that the composite contains both nano and micron sized particles. The multiscale analysis indicates that in the composite om-POSS crystalline nanoparticles having a size from tens to hundreds of nanometers tend to agglomerate together with preferred orientation to form elongated micron sized particles. Orientation of crystallites affects the relative intensity of various Raman peaks. Appearance of Raman images thus depends on the choice of the peak used in the analysis.