CF／PEEK复合材料的摩擦磨损行为研究

The Friction and Wear Behavior of PEEK Composites Reinforced by Carbon Fiber

研究了碳纤维增强聚醚醚酮（ＣＦ／ＰＥＥＫ）复合材料的摩擦磨损行为．结果表明复合材料的摩擦系数与磨损率依赖于材料中纤维的含量，在１０％～２０％范围有最低值，并对载荷有明显的依赖性．纤维含量的影响是碳纤维本身的减摩阻磨性和其对纤维在树脂中所处的分散状态及纤维在作用中的变化的依赖性有关；而载荷的影响则与树脂在作用过程中产生热后所处的物理状态有关．由于纤维对材料的摩擦尤其是磨损性能可能产生不利的影响，如纤维受磨减薄后产生的碎片导致磨料性磨损，而这种影响可通过复合材料的制备工艺来达到一定程度的控制。

The friction and wear behavior of the composites of polyetheretherketone(PEEK) reinforced by carbon fiber is decribed in this work. Both the friction coefficient and wear rate of the composites were found to be dependent on the carbon fiber content with a mininum at 10%～20%, and dependent on the load. Although carbon fiber has a reducing effect on the friction and wear of PEEK, its breakage and debonding with the matrix, occuring in the process, may also lead to high friction coefficient and wear rate. The side effect caused by the fiber can be controlled, in a certain degree, by changing the processing of the composites.