钛粉对复合磺酸钙基润滑脂性能的影响

Effect of Titanium Powder on Performances of Calcium Sulfonate Complex Grease

复合磺酸钙基润滑脂具有优异的综合性能而被广泛应用,不断提高和完善复合磺酸钙基润滑脂的综合性能对于推动绿色发展、提高资源的利用率有着重大的意义,预测复合磺酸钙润滑脂将可能会成为润滑脂的主要发展方向。为此,就钛粉对复合磺酸钙基润滑脂理化性能,胶体结构,抗燃性能和高温摩擦学特性的影响进行了考察,以期进一步提高和改善复合磺酸钙基润滑脂的综合性能。结果表明,钛粉对复合磺酸钙基润滑脂理化性能和胶体结构基本没有影响,能够降低复合磺酸钙基润滑脂的高温摩擦因数,并显示出了优异的抗磨损性能,提高了复合磺酸钙基润滑脂的高温(120℃)摩擦学特性,同时高含量(2.5%质量分数及以上)的钛粉有助于提高复合磺酸钙基润滑脂的抗燃性能。

Calcium sulfonate complex grease was widely used because of its excellent comprehensive performance.It was of great significance to continuously increase and improve the comprehensive performance of calcium sulfonate complex grease for promoting green development and improving the utilization of resources.It was predicted that calcium sulfonate complex grease would probably become the main development direction of grease.Therefore,the influence of titanium powder on the physicochemical properties,colloidal structure,flame retardancy and elevated-temperature tribological performances of calcium sulfonate complex grease was investigated,with a view to further increasing and improving the comprehensive performances of calcium sulfonate complex grease.The results showed that titanium powder had no effect on the physicochemical properties and colloidal structure of the calcium sulfonate complex grease,could reduce the elevated-temperature friction coefficient of the calcium sulfonate complex grease,and showed excellent wear resistance,and improved the elevated temperature(120℃)tribological characteristics of the calcium sulfonate complex grease.At the same time,the high content of titanium powder(2.5% mass fraction and above)was helpful to improve the flame retardancey of the calcium sulfonate complex grease.