Sökning: "dielectric permittivity"
Visar resultat 1 - 5 av 57 avhandlingar innehållade orden dielectric permittivity.
1. Electrical Properties of Carbon Black Polymer Composites: Filler Particle Rearrangement
Sammanfattning : The practical application of semi-conducting carbon black polymer composites often involves temperature variations resulting in changes in their electrical properties. Study of cross-linked ethylene butylacrylate copolymer (EBA) filled with acetylene black has shown that these changes are due to carbon black network re-arrangement. LÄS MER
2. Dielectric properties of poly(ethyelene-co-butyl acrylate) filled with Alumina nanoparticles
Sammanfattning : In this work dielectric properties of the poly(ethylene-co-butyl acrylate)filled with alumina nanoparticles are evaluated. These nanocomposite materialswere manufactured at the department of Fibre and Polymer Technology,KTH.This study is limited to the properties of general importance for the AC applications. LÄS MER
3. Microwave-assisted air dehydration of fruits and vegetables : dielectric properties and drying process conditions
Sammanfattning : .... LÄS MER
4. Studies of Dielectric Relaxation in Solid Polymers and Composites
Sammanfattning : Non-linear characteristics of homogeneous solid polymers and solid polymer-based composites have been studied both experimentally and theoretically. In particular experimental studies of non-linear dielectric response of six homogeneous solid polymeric materials and the influence of the composition on the properties of solid polymer-based composites with high dielectric permittivities have been carried out and a theoretical study of dipole-dipole interaction in solids based on a formulation due to P. LÄS MER
5. Electrical Insulating Properties of Poly(Ethylene-co-Butyl Acrylate) Filled with Alumina Nanoparticles
Sammanfattning : In this work the electrical insulating properties of the nanocomposite materials based on poly(ethylene-co-butyl acrylate) filled with alumina nanoparticles are studied. The dielectric properties chosen for the evaluation are the dielectric permittivity and loss as well as the breakdown strength and the pre-breakdown currents. LÄS MER