Filler Type and Particle Distribution Effect on Compact Properties of Polymer Composites

This study reports the effects of silica (S), quartz (Q), and basalt (B) fillers on the chemical, thermal, and mechanical properties of unsaturated polyester (PE) composites. In the study, fillers were selected as same class grain distribution and mixed with orthophtalic based PE resin to produce composites. The thermal characterization of the composites was determined with thermogravimetric and thermal conductivity. Chemical characterization was carried out with FT-IR. Compressive strength was investigated with Universal Testing Machine. SEM device was used to investigate the morphological alterations of the composites. Also, statistical analysis was carried out for thermal conductivity and mechanical results. At the end of the present study, some minor chemical alterations were seen in FT-IR after the interaction of the fillers and PE resin. Thermal stability decreased after adding fillers. The thermal conductivity and thermogravimetric analysis were not agreed with each other that higher thermal conductivity was seen in the PE-Q composites. The compressive strength of filler-based composites was higher than that of the neat PE composite whereas the higher compressive strength was obtained in the PE-Q. This study confirms the applicability of various fillers as a reinforcing agent in the polymer.