Extraordinarily Low Friction and Wear of Epoxy-Metal Sliding Pairs Lubricated with Ultra-Low Sulfur Diesel,ACS Sustainable Chemistry & Engineering

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Extraordinarily Low Friction and Wear of Epoxy-Metal Sliding Pairs Lubricated with Ultra-Low Sulfur Diesel
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2018-10-01 00:00:00 , DOI: 10.1021/acssuschemeng.8b04352
Lihe Guo _{1,

2} , Guitao Li ₁ , Yuexia Guo _{1,

2} , Fuyan Zhao ₁ , Ligang Zhang ₁ , Chao Wang ₁ , Ga Zhang _{1,

3}

Affiliation

Utilization of ultralow sulfur diesel (ULSD) having intrinsically low lubricity has been mandated in more and more countries for meeting increasingly stringent emission regulations. Our work demonstrated that epoxy hybrid nanocomposites, reinforced with carbon fibers and Al₂O₃ or AlN nanoparticles, offered extraordinarily low friction and wear when lubricated with ULSD. More interestingly, when sliding took place under lubricant starvation conditions, almost no wear took place thanks to the formation of a nanostructured tribofilm. We investigated comprehensively heat and stress activated physical and chemical actions occurring at friction interfaces. It was revealed that the lubricious and robust tribofilm grew while complex molecular species released from the nanocomposites were fed constantly onto the contact zone. The present work paved a route for tuning interface nanostructures of large numbers of motion components subjected to harsh lubrication conditions toward extremely high energy efficiency and long lifespan.

中文翻译：

超低硫柴油润滑的环氧金属滑动副的超低摩擦和磨损

为了满足日益严格的排放法规，越来越多的国家要求使用润滑性低的超低硫柴油（ULSD）。我们的工作表明，用碳纤维和Al ₂ O ₃增强的环氧杂化纳米复合材料或AlN纳米颗粒，用ULSD润滑时具有极低的摩擦和磨损。更有趣的是，当在润滑剂不足的条件下发生滑动时，由于形成了纳米结构的摩擦膜，几乎没有发生磨损。我们全面研究了摩擦界面处发生的热和应力激活的物理和化学作用。揭示了润滑而坚固的摩擦膜的生长，而从纳米复合材料释放的复杂分子物质不断地进料到接触区。目前的工作为调节大量运动部件的界面纳米结构铺平了道路，这些运动部件在恶劣的润滑条件下朝着极高的能效和长寿命方向发展。

更新日期：2018-10-01

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