选用碳酸钙晶须作为增强材料,采用半湿法密炼工艺和热压成型法制备了橡胶基摩擦材料,研究了碳酸钙晶须质量分数(0~25%)对摩擦材料硬度、密度、冲击强度、抗拉强度和摩擦磨损性能等的影响.结果表明:随着碳酸钙晶须添加量增加,摩擦材料的硬度、密度、抗拉强度、冲击强度和磨损量均呈下降的趋势;添加碳酸钙晶须的质量分数为15%时,摩擦材料的综合性能最好.
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.
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