Effect of Zinc Dialkyl Dithiophosphate Replenishment on Tribological Performance of Heavy-Duty Diesel Engine Oil.
Effect of Zinc Dialkyl Dithiophosphate Replenishment on Tribological Performance of Heavy-Duty Diesel Engine Oil.
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DOI：
10.1007/s11249-022-01565-8
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发表时间：
2022
影响因子：
3.2
通讯作者：
Morina A
中科院分区：
文献类型：
--
作者：
Al Sheikh Omar A;Salehi FM;Farooq U;Neville A;Morina A
在重型发动机油中，油烟是影响机油性能和增加换油频率的主要污染物。一些研究讨论了添加剂随时间的耗尽和添加剂对烟灰颗粒的吸附会影响机油中的添加剂浓度。为了延长放油间隔，提高机油性能，滤清器制造商探索将油烟去除到一定程度，并补充消耗的添加剂。二烷基二硫代磷酸锌（ZDDP）是最受欢迎的抗磨添加剂之一，它与摩擦表面反应非常迅速，形成摩擦膜，减少磨损。在本研究中，实验工作旨在研究补充ZDDP对重负荷废油中存在烟尘和去除烟尘后摩擦学性能的影响。研究表明，通过去除一定程度的烟尘，可以实现废油的回收利用。结果表明，除灰后的再生油仍不如新油。研究证明，添加剂损耗、添加剂对烟尘的吸附和抗磨添加剂的分解对再生油的性能有不利影响。然而，通过添加少量的ZDDP来补充消耗的添加剂有助于提高再生油的性能，而大量的ZDDP则需要在煤烟存在的情况下重新获得油品性能。
Soot is the main contamination that affects oil performance and increases the frequency of oil changes in heavy-duty engine oil. Several studies discussed that additive concentration in engine oil can be influenced due to additive depletion over time and additive adsorption on soot particles. To extend oil drain intervals and improve oil performance, filter manufactures explore removing the soot to a certain level and replenishing the consumed additives. Zinc dialkyl dithiophosphate (ZDDP) is one of the most favored antiwear additives that react very rapidly with rubbing surfaces to form tribofilm that reduces wear. In this study, the experimental work aims to investigate the effect of ZDDP replenishment on tribological performance in the existence of soot and after removing soot from heavy-duty used oil. The study reveals that reclaiming the used oil can be achieved by removing the soot to a certain level. The results demonstrate that the reclaimed oil after removing soot is still not as good as the fresh oil. This study proves that additive depletion, additive adsorption on soot, and the decomposition of antiwear additive adversely influence the reclaimed oil performance. However, replenishing the consumed additive by adding a small amount of ZDDP helps to improve the reclaimed oil performance compared to a large amount of ZDDP which is required to re-gain the oil performance in the existence of soot.
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DOI：
10.1243/09544070jauto468
发表时间：
2008-09-01
影响因子：
1.7
作者：
Green, D. A.;Lewis, R.
通讯作者：
Lewis, R.
影响因子：
1.6
作者：
Kumar, S;Mishra, NM;Mukherjee, PS
通讯作者：
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影响因子：
3.5
作者：
Nguele, Ronald;Al-Salim, Hikmat Said;Mohammad, Khalid
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Mohammad, Khalid
影响因子：
3.2
作者：
Doerr, Nicole;Agocs, Adam;Frauscher, Marcella
通讯作者：
Frauscher, Marcella
影响因子：
6.2
作者：
BERBEZIER, I;MARTIN, JM;KAPSA, P
通讯作者：
KAPSA, P