以酚醛树脂为基体、玄武岩纤维为增强体制备了玄武岩纤维增强树脂基摩擦材料,研究了树脂含量对其弯曲强度和摩擦磨损性能的影响,并对其磨损机理进行了初步分析.结果表明:该摩擦材料的弯曲强度随树脂含量的增加而提高,当树脂质量分数为35%时开始出现下降趋势;随着树脂含量的增加,摩擦材料吸水率和磨损率呈现下降趋势;当树脂质量分数为25%时,摩擦因数较高、磨损率和吸水率较低,合适的树脂质量分数为25%~30%;当基体树脂的含量相对较低时,玄武岩纤维容易被拉出和剥落;随着树脂含量的增加,摩擦材料的主要磨损机理是磨粒磨损.

The basalt fiber reinforced resinmatrix friction materials were prepared by using phenolic resin as matrix and basalt fiber as reinforcer.The effect of resin content on the bending strength and friction and wear properties of the composites was studied,and the friction and wear mechanism was analyzed.The results show that the bending strength of the materials increased with increasing the resin content,but decreased when the resin content was about 35wt%.With the increase of the resin content,the water absorption and the wear rate decreased.When the resin content was 25wt%,there were relatively high friction coefficient,low water absorption and wear rate.The desirable resin content was from 25wt% to 30wt%.When the resin content was relatively low,the basalt fiber was easy to be peeled off and pulled out.And the main wear mechanism of the friction material was abrasive wear.