BF/黑宝石粉体增强EP基摩擦材料的摩擦磨损性能

Friction and Wear Properties of Basalt Fiber/Basalt Crystal Glass Powder Reinforced Epoxy Resin Matrix Friction Materials

以环氧树脂(EP)为基体,玄武岩纤维(BF)为增强材料,玄武岩水晶玻璃(黑宝石)粉体为摩擦性能调节剂制备BF/黑宝石粉体增强EP基摩擦材料,研究了黑宝石粉体对摩擦材料摩擦磨损性能和力学性能的影响,然后在添加质量分数为5%的黑宝石粉体的基础上,采用相同手段研究了BF含量对摩擦材料性能的影响。结果表明,黑宝石粉体可以极大地提高摩擦材料的摩擦系数,并进一步降低磨损率以及提高摩擦材料的力学性能。BF的加入在一定程度上降低了摩擦材料的摩擦系数,且当BF含量较低或较高时,摩擦材料的磨损率均会有所提升。当BF质量分数为6%时,摩擦材料的综合性能最优,其摩擦系数为0.534,与未加BF的摩擦材料相比仅降低了7.61%,磨损率为0.75%,较未加BF的摩擦材料降低了31.82%,拉伸强度和弯曲强度分别为55.568 MPa和92.750 MPa,与未加BF的摩擦材料相比,分别提高了148%和66.42%。

The basaltfiber (BF) and basalt crystal glass powder reinforced epoxy resin (EP) matrix friction materials were prepared by using EP as matrix,BF as a reinforcing material and basalt crystal glass powder as friction performance moderators. The effect of basalt crystal glass powder on the friction and wear properties and mechanical properties of the friction materials were studied,and then on the basis of adding 5% basalt crystal glass powder,the effects of BF content on the properties of the friction materials were investigated by using same test methods. The results show that the basalt crystal glass powder can largely increase the friction coefficient,further reduce wear rate and improve mechanical properties of the friction materials. The addition of BF can reduce the friction coefficient to some extent,and when BF content is too low or too high,the wear rates all increase. When the mass fraction of BF is 6%,the friction material has the best overall properties,compared with the friction material without BF,the friction coefficient is 0.534and only decreases by 7.61%,the wear rate is 0.75% and decreases by 31.82%,the tensile strength and bending strength is 55.568 MPa and 92.750 MPa respectively,which increases by 148% and 66.42% separately.