复合抗氧剂对润滑油氧化的影响

The Effect of Composite Antioxidants on Oxidation of Lubricating Oil

模拟城市十五工况探究复合抗氧剂对润滑油氧化衰变的影响,选用噻二唑衍生物和对,对-二异辛基二苯胺,研究了其对润滑油的抗氧化作用及对进气阀和燃烧室沉积物的影响。噻二唑衍生物含量为0.05%,对,对-二异辛基二苯胺含量为0.5%,氨基甲酸钼含量为0.05%可以确定为复合抗氧剂最佳配比之一,通过台架试验与双怠速试验对比加入复合抗氧剂前后对碳排放的影响。结果表明,复合抗氧剂能有效抑制润滑油的氧化衰变,添加复合抗氧化剂可减少进气阀和燃烧室内的沉积物,减少汽车的碳排放。

The effects of composite antioxidants on the oxidative decay of lubricating oil are investigated under the conditions of simulated urban 15 working.The thiadiazole derivatives and p,p-diisooctyl diphenylamine are selected to study their antioxidant effects on lubricating oil and on sedi-ments in intake valves and combustion chambers.The thiadiazole derivative content is 0.05%,the p,p-diisooctyl diphenylamine content is 0.5%,and the molybdenum carbamate content is 0.05%,which can be determine to be one of the best compositions of composite antioxidants.The effects of adding composite antioxidants on carbon emissions are compared by bench test and double idle speed test.The results show that the composite antiox-idant can effectively inhibit the oxidative decay of lubricating oil.Adding the composite antioxidant can reduce the sediment in the intake valve and combustion chamber,and reduce the carbon emissions of automobiles.