摘要
为探究玄武岩纤维在树脂基摩擦材料中的应用,采用热模压工艺制备了玄武岩纤维质量分数为0~20%的树脂基复合材料,对其进行摩擦磨损性能试验,并检测硬度和抗剪强度,观察磨损表面微观形貌,探讨其磨损机制。结果表明:向树脂基摩擦材料中添加玄武岩纤维,具有显著提高材料的硬度、抗剪强度,降低磨损率,增大摩擦系数和热衰退温度的作用。玄武岩纤维增强的摩擦材料硬度越高,摩擦系数越大,剪切强度和硬度越高,磨损率越小;当玄武岩纤维含量为15%时,磨损率最低,达到0.23 cm^3/(N·m);当玄武岩纤维含量为20%时,摩擦系数最大,达到0.45。玄武岩纤维增强的树脂基摩擦材料,其磨损机理以磨粒磨损为主。
In order to explore the application of basalt fiber in resin-based friction materials,composites with 0~20%(mass fraction)basalt fibers have been prepared by hot-pressing.Friction and wear properties,hardness and shear strength have been tested.The wear surface morphology has been observed by scanning electron microscopy(SEM),and its wear mechanism has been discussed.The results show that the basalt fiber can significantly improve the hardness and shear strength,reduce the wear rate and increase the friction coefficient and the heat fade temperature.The higher the hardness,the larger the friction coefficient,the higher the shear strength and hardness,and the smaller the wear rate.When the basalt fiber content is 15%,the wear rate is at least 0.23 cm^3/(N·m).When the basalt fiber content is 20%,the friction coefficient is up to 0.45.The main wear mechanism of basalt fiber reinforced resin-based friction materials is abrasive wear.
作者
贺怀文
宋绪丁
房尚龙
HE Huai-wen;SONG Xu-ding;FANG Shang-long(Key Laboratory of Road Construction Technology and Equipment,MOE,Chang′an University,Xi′an 710064,China)
出处
《复合材料科学与工程》
CAS
北大核心
2020年第3期61-65,共5页
Composites Science and Engineering
基金
长安大学研究生科研创新实践项目(300103002058)。
关键词
玄武岩纤维
树脂基摩擦材料
摩擦系数
热衰退
磨损率
basalt fiber
resin-based friction material
friction coefficient
heat fading
wear rate
