防腐剂与抗磨剂的竞争吸附效应

利用含有防腐剂的润滑油和轴承珠进行模拟吸附实验，通过紫外光谱的测量方法对吸附实验前后的润滑油进行吸光度测量，发现了吸附实验前后润滑油紫外吸光度的区别， 利用郎伯-贝尔原理对润滑油与轴承珠接触界面膜中的吸附量进行了计算，证实了防腐剂在摩擦副表面的吸附作用；对含有抗磨剂和防腐剂的润滑油进行吸附实验，并测量了实验前后润滑油的紫外吸光度，发现了相同防腐剂质量分数、不同抗磨剂质量分数润滑油紫外吸光度有较大区别；通过紫外光谱测量和界面膜中防腐剂吸附量的计算方法，表征了抗磨剂对防腐剂在摩擦副表面吸附量的定性影响规律 ，证实了抗磨剂与防腐剂的竞争吸附关系。

Competitive Adsorption of Anticorrosion and Antiwear Additives

Simulated adsorptive experiments using the axletree and lubricating oil containing anticorrosion additive were conducted,and the UV absorbance of the lubricating oil before and after the adsorptive experiments was measured.Through the UV spectral measurements the difference in UV absorbance of the lubricating oil before and after the adsorptive experiments was identified,the adsorbed quantity of anticorrosion additive in the interfacial film between lubricating oil and bearing was calculated using the Lambert-Bell principle to verify the adsorption of corrosion inhibitor on the surface of friction pairs.Adsorption experiments on lubricating oil containing both antiwear and anticorrosion additives were carried out and the UV absorbance of lubricating oil samples before and after the experiments was measured to determine the difference in the UV absorbance among lubricating oil samples with the same mass fraction of anticorrosion additive and different mass fractions of antiwear additive.By measuring the ultraviolet spectral absorbance of lubricating oil samples and calculating the adsorbed quantity of anticorrosion additive in the interfacial film it was possible to determine the influence of antiwear additive on the quantity of adsorbed anticorrosion additive on the surface of friction pairs and verify the competitive adsorption relationship between the antiwear additive and the anticorrosion additive.