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In this work thermoplastic polymeric blends based on Low Density Polyethylene (LDPE) and Ethylene Vinyl Acetate (EVA) have been studied. The blends have been prepared by twin screw compounding. In order to obtain different nanocomposite materials, montmorillonite and silica fillers have been considered. These two fillers are characterised by different aspect ratios: the first having a lamellar structure...
In this work thermoplastic polymeric blends have been investigated. Such blends are based on low density polyethylene mixed in 80∶20 (wt. %/wt. %) ratio with ethylene vinyl acetate. The nanocomposites has been obtained by adding montmorillonite and silica as fillers. The aim is to identify a new class of insulating materials for medium voltage equipment that could substitute the conventional ones...
This study focuses on blends with thermoplastic polymers matrices. The nanocomposites blends based on polyolefins could represents a new class of insulating materials with low environmental impact and good electrical performances. The materials object of this study have been prepared by adding different kinds and percentage of nanofillers as montmorillonite and silica to a thermoplastic polymeric...
Sets of nanostructured PP films have been prepared using various techniques and procedures. They have been subjected to mechanical tests (stress-strain curves and to impact strength tests) and have been subjected to electrical space charge tests by means of Pulse ElectroAcoustic techniques. Suitable analysis about the relevant correlations were performed and did produce results useful from the quality...
The influence of semi-crystalline morphology on the electrical breakdown strength of syndiotactic polypropylene (sPP) based materials is investigated. Different sPP samples (with varying molecular mass and syndiotacticity) and an sPP/ethylene random copolymer are studied. The semi-crystalline morphology of these materials was characterized using different techniques like WAXD, DSC and SEM. The crystalline...
This investigation is dedicated to the development of a new class of nanostructured composite material from cycloaliphatic epoxy polymers with nanoclay and microsilica as the fillers and the analysis of the behavior associated in the inclined plane tracking test (IEC 60587). Composite materials with different weight percentages of fillers were prepared and subjected to electrical tracking according...
An AC electrical strength test campaign was performed on different Low Density Polyethylene (LDPE) nanocomposites. Such materials were obtained by the dispersion of inorganic nanoparticles having different aspect ratio and surface nature: silica AEROSIL 200 and montmorillonite. All the considered nanofillers have been organically modified in order to obtain a good dispersion and an efficient interfacial...
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