Effect of Calcium Carbonate Whisker Content on Properties of Rubber Based Friction Materials

Taking calcium carbonate whisker as reinforced material, rubber based friction materials are fabricated using semi-wet technology and hot pressing method. Effects of calcium carbonate whisker's added content (0-25wt%) on hardness, density, impact strength, tensile strength and friction and wear properties of the friction materials were studied. The results show that with the increase of calcium carbonate whisker added content, hardness, density, tensile strength, wear extent of friction materials appear downward trend. When the mass fraction of calcium carbonate whisker is 15wt%, the friction material has the best comprehensive performance.