A comparative study of polyester/styrene with inorganic fillers under different testing conditions

Cylindrical samples prepared from polyester with styrene monomer have been examined experimentally in an atmospheric air condition. The AC and DC withstand voltages have been measured for different sets of samples under different testing conditions. The effect of adding inorganic fillers on the performance of polyester/styrene has been investigated. Three types of fillers, namely, kaolin, felspar, and quartz, in different quantities have been used. The quantity of filler has been found to have a significant effect on the performance of polyester. The characteristics of fillers under different testing conditions are illustrated and discussed. It has been found that kaolin samples have the highest withstand voltage under both DC and AC voltages.<
>