The research and development of safe and environmentally friendly high-performance friction materials for automotive brakes is the focus of automotive brake materials research.In this pa-per,high performance automotive brake materials with multi-fiber synergies were prepared by hot pressing technology.The effects of calcium sulfate whisker content on friction and wear properties,physical properties,mechanical properties and surface cleanliness of brake materials were studied.The effects of calcium sulfate whisker content on friction and wear properties,physical properties,mechani-cal properties and surface cleanliness of brake materials for new energy vehicles were studied.The re-sults show that the sample with 7%calcium sulfate whisker content has excellent comprehensive per-formance in the range of 100～300℃.The value of the average friction coefficient is 0.374,the average wear rate is 0.8×10-7 cm3/N·m,the fluctuation rate of the friction coefficient is-23%～11%,the Rock-well hardness is 68.3 HRC,the impact strength is 0.414 kJ/m2,the density is 2.11 g/cm3,and the contact angle is 108.85o.The properties can meet the requirements of GB5763-2008 standard,indicating that the material has the potential for industrial application in the future.
维普
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