钛酸钾晶须/芳纶/坡缕石复合矿物纤维摩擦材料的摩擦性能研究

Study on the Properties of Mineral Fiber Friction Materials Composited by PTW/Kevlar/Palygorskite

混杂钛酸钾晶须、芳纶纤维、坡缕石纤维3种增强材料,复合制备一种非金属摩擦材料,运用正交试验法和极差分析法,研究各成分及其用量对材料摩擦性能的影响。结果表明:对材料的摩擦因数影响显著的顺序是芳纶纤维与坡缕石纤维交互作用,钛酸钾晶须,芳纶纤维,钛酸钾晶须与坡缕石纤维的交互作用,钛酸钾晶须与芳纶纤维的交互作用,坡缕石纤维。从磨损性来看,影响较大的因素是钛酸钾晶须,其次顺序是坡缕石纤维,芳纶纤维。最佳组合是钛酸钾晶须15%、芳纶纤维4%、坡缕石纤维15%。交互作用对材料的耐磨性影响显著的是芳纶纤维与坡缕石纤维,其次是钛酸钾晶须与芳纶纤维、钛酸钾晶须与坡缕石纤维。

A non-metallic friction material was prepared by mixing three types of reinforcements：potassium titanate whiskers （PTW） , kevlar fibers, palygorskite fibers. The interaction and amount of material compositions on friction performmaces were studied by orthogonal test and variance analysis. The results show that the order of significant effect on the friction coefficient is the interaction of kevlar fiber and palygorskite fibers, potassium titanate whiskers （PTW） , kevlar fibers, the interaction of PTW and palygorskite fibers, the interaction of PTW and kevlar fiber, palygorskite fibers. From the view of wear resistance, the larger affecting factors is PTW, followed by the order of palygorskite fibers, kevlar fibers. The best combination of material is 15% PTW,4% kevlar fibers, 15% palygorskite fiber. Significant interaction on the wear resistmace is the interaction of kevlar fiber and palygorskite fiber, followed by PTW interacted with kevlar fiber, PTW interacted with palygorskite fibers.