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Oil-soluble ionic liquid to lubricate silicon
Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology ( IF 2 ) Pub Date : 2021-01-04 , DOI: 10.1177/1350650120984880
Waleed Al-Sallami 1 , Pourya Parsaeian 1 , Abdel Dorgham 1 , Anne Neville 1
Affiliation  

Trihexyltetradecylphosphonium bis(2-ethylhexyl)phosphate (phosphonium phosphate) ionic liquid is soluble in non-polar lubricants. It has been proposed as an effective anti-wear additive comparable to zinc dialkyldithiophosphate. Previously, phosphonium phosphate has shown a better anti-wear performance under some conditions such as high temperature. In this work, the tribological performance and the lubrication mechanism of phosphonium phosphate are compared with that of zinc dialkyldithiophosphate when lubricating silicon under various tribological conditions. This can lead to an understanding of the reasons behind the superior anti-wear performance of phosphonium phosphate under some conditions. A micro-scale study is conducted using a nanotribometer. The results show that both additives lead to a considerable reduction in both friction and wear coefficients. The reduction in the wear coefficient is mainly controlled by the formation of the tribofilm on the rubbing surfaces. Zinc dialkyldithiophosphate can create a thicker tribofilm, which results in a better anti-wear performance. However, the formation of a thicker film will lead to a faster depletion and thus phosphonium phosphate can provide better anti-wear performance when the depletion of zinc dialkyldithiophosphate starts.



中文翻译:

油溶性离子液体润滑硅

双(2-乙基己基)磷酸三己基十四烷基phosph(磷酸phosph)离子液体可溶于非极性润滑剂中。已经提出了与二烷基二硫代磷酸锌相当的有效的抗磨添加剂。以前,磷酸phospho在某些条件下(例如高温)显示出更好的抗磨性能。在这项工作中,比较了在各种摩擦条件下润滑硅时,磷酸phospho与二烷基二硫代磷酸锌锌的摩擦学性能和润滑机理。在某些情况下,这可以使人们理解磷酸phospho具有超强抗磨性能的原因。使用纳米摩擦计进行了微型研究。结果表明,两种添加剂均可显着降低摩擦系数和磨损系数。磨损系数的降低主要是通过在摩擦表面上形成摩擦膜来控制的。二烷基二硫代磷酸锌可产生较厚的摩擦膜,从而产生更好的抗磨性能。然而,较厚的膜的形成将导致更快的消耗,因此当二烷基二硫代磷酸锌开始消耗时,磷酸phospho可以提供更好的抗磨性能。

更新日期:2021-01-04
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