Effect of Antimony Sulfide Content on Properties of Automotive Friction Material

By changing the content of antimony sulfide (Sb₂S₃) based on the basic formula, the friction materials were prepared by directly mixed process. The physical and chemical properties, mechanical properties, tribological properties and brake noise test were completed, the friction surfaces and wear debris of friction materials were observed by using scanning electron microscopy, energy dispersive X-ray microanalysis and X-ray diffraction analysis. And the friction and wear mechanism was discussed. The results show that the formation of the friction film was promoted, the stability of friction coefficient, wear rate and the occurrence of brake noise were obviously improved by adding appropriate amount of antimony sulfide. For composite with the content of antimony sulfide of 5%, the comprehensive performance of sample was the best.