【摘要】 通过成焦、成漆试验考察不同组成基础油对油品清净性的影响, 利用质谱技术将基础油组成进行了详细的分析。通过研究发现, 基础油中烃类对油品的清净性有一定影响。同时对基础油中硫、氮对油品清净性的影响进行了讨论。经分析建立了一个关于基础油组成与油品清净性能线性的模型, 利用该模型得到的清净性指数能够区分不同基础油调制油品的清净性。更多还原

【Abstract】 The effect of different base stocks on lubricant detergency was investigated through panel coker test.The hydrocarbon composition of the base stocks was studied by mass spectrometry technique.It was found that the hydrocarbons of the base stocks has some influence on the engine oil detergency.The influence of sulfur and nitrogen in the base stocks was also studied.A linear correlation model of base stock composition and engine oil detergency was established.The detergency of engine oils blended by different base stocks can be distinguished by the detergency index got from this model.更多还原