The effect of huntite and barite mineral-based polymer composite brake materials on friction and braking performance

Abstract

Mineral materials are used in brake pad polymer composites at different rates, and positive results are obtained in tests conducted with the brake pads produced. This study produced brake pad polymer composites based on huntite and barite minerals. The materials forming the samples were mixed in a kinetic-type mixer, pressed using the hot molding method and prepared for the experiments with the curing process as the final process. Density, friction coefficient, wear rate and TG-DSC mass loss tests were performed on the samples. After the friction coefficient test, microscopic analyses of the brake pad samples were performed using a scanning electron microscope, and the surface roughness was measured using a three-dimensional profilometer. In the friction coefficient, hardness and mass loss analyses, values similar to those reported in the literature were obtained for all the samples. As a result, it was determined that the huntite and barite mineral-based polymer composite brake friction materials produced for automobiles exhibited performance following the brake pad characteristics.