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Low-density Polyethylene (LDPE) was modified by using simultaneously 2 additives. Each additive had a specific attribute. Silicon was used. Using TEM with EELS, it was proved first that the passivated version constituted a double core consisting of Si surrounded by a nanometric layer of amorphous Silica (SiO2). Thus Si brought the possibility of an enlarged dielectric storage capacity with a barrier...
The situation where the polymer nanocomposite contains a large amount of organic filler was studied. An epoxy nanocomposite having a content of 20% wt of nanosilica was used. Emphasis was put on imaging at nanoscale and some dielectric responses were measured using dielectric spectroscopy. Using HAAD mode, an area of less than 4 nm surrounding an isolated particle was imaged and found to have a very...
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