Document Details Document Type : Article In Journal  Document Title : Action of colloidal silica films on different nano-composites Action of colloidal silica films on different nano-composites   Subject : physics  Document Language : English  Abstract : Nano-composite films have been the subject of extensive work to develop the energy-storage efficiency of electrostatic capacitors. Factors such as polymer purity, nano-particles size, and film morphology drastically affect the electrostatic efficiency of the dielectric material that form an insulating film between conductive electrodes of a capacitor. This in turn affects the energy storage performance of the capacitor. In the present work, we have studied the dielectric properties of 4 high pure amorphous polymer films: polymethylmethacrylate (PMMA), polystyrene, polyimide and poly-4-vinylpyridine. Comparison between the dielectric properties of these polymers has revealed that the higher break down performance is a character of polyimide PI and PMMA. Also, our experimental data shows that adding colloidal silica to PMMA and PI leads to a net decrease in the dielectric properties compared to the pure polymer  ISSN : 2211-3797  Journal Name : Results in Physics  Volume : 6  Issue Number : 1  Publishing Year : 1437 AH 2016 AD  Article Type : Article  Added Date : Monday, August 14, 2017  Researchers Researcher Name (Arabic) Researcher Name (English) Researcher Type Dr Grade Email S Abdalla Abdalla, S Investigator Doctorate smabdullah@kau.edu.sa F Al-Marzouki, Al-Marzouki,, F Researcher Doctorate   A Obaid Obaid, A Researcher Doctorate   S (Gamal (Gamal, S Researcher Doctorate   Files File Name Type Description  42616.pdf pdf   Back To Researches Page