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The short-medium term behaviour of pure and nanocomposite polypropylene is investigated: in particular both breakdown voltage tests and electrical aging tests are performed applying sinusoidal waveforms at industrial frequency (50 Hz) to the studied materials. The nanocomposite material is obtained by the dispersion of 10% by wt. of inorganic nanosized clay inside the organic polypropylene (PP) matrix...
Electrical treeing in pure LDPE and in three LDPE nanocomposites, filled with fibrous and laminar philosilicates, has been studied. The nanocomposites have been prepared by dispersing into the matrix 10% wt of nano fillers having different aspect ratio: sepiolite, montmorillonite and also sepiolite and montmorillonite together. Both considered nanofillers have been organically modified in order to...
This work presents the output of a short and medium term electrical characterisation performed on different nanocomposite materials obtained by the dispersion of inorganic nanoparticles into a matrix of Low Density Polyethylene (LDPE). Two nanofillers were adopted: sepiolite and montmorillonite. Both nanofillers belong to the family of silicate clay minerals but have different aspect ratio. The nanocomposites...
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