Antimony Sulfide is selected by stibnite through, and chemical purification for black solid powder. It is relatively low melting point, the decomposition of antimony oxide, after reducing and generated in existence, can prevent metal antimony oxide materials of high temperature burning, maintain the stability of friction material, improving resistance ablation property, Also can reduce the organic binder in high speed, improve the decomposition of the material life, high temperature and lubrication friction adjustment of inorganic adhesive agent. Besides vulcanization antimony and in the process of friction temperature were lower hardness reaction, can reduce friction material braking noise and vibration. Antimony sulfide of adjustment coefficient of friction properties of the material in the friction has been widely applied in industry, especially the heavy load an important raw material of the disc brake.