Halogen-free imidazolium/ammonium-bis(salicylato)borate ionic liquids as high performance lubricant additives

RSC Advances ◽  
2014 ◽  
Vol 4 (3) ◽  
pp. 1293-1301 ◽  
Author(s):  
Rashi Gusain ◽  
Raghuvir Singh ◽  
K. L. N. Sivakumar ◽  
Om P. Khatri
2021 ◽  
Author(s):  
Hong Guo ◽  
Patricia Iglesias Victoria

Taking into account the environmental awareness and ever-growing restrictive regulations over contamination, the study of new lubricants or lubricant additives with high performance and low toxicity over the traditional lubes to reduce the negative impact on the environment is needed. In this chapter, the current literature on the use of ionic liquids, particularly protic ionic liquids, as high-performance lubricants and lubricant additives to different types of base lubricants are reviewed and described. The relation between ionic liquids structures and their physicochemical properties, such as viscosity, thermal stability, corrosion behavior, biodegradability, and toxicity, is elaborated. Friction reduction and wear protection mechanisms of the ionic liquids are discussed with relation to their molecular structures and physicochemical properties.


Author(s):  
Hong Guo ◽  
Rui Liu ◽  
Alfonso Fuentes-Aznar ◽  
Patricia Iglesias Victoria

The lubricating ability of one halogen-free and one halogen-containing phosphonium-based ionic liquids are investigated as neat lubricants, lubricant additives and thin lubricant layers in steel-steel contact. The use of the ionic liquids in any of the three lubricating methods reduced friction and wear compared to a base mineral oil. The halogen-free ionic liquid outperformed the halogen-containing ionic liquid in the three methods of lubrication. The highest friction and wear reduction were obtained when ionic liquids were used as neat lubricants. Under this condition, friction reductions of 37.21% and 25.73 %, and wear reduction of 47.12% and 41.18% compared to the based mineral oil were obtained for the halogen-free and halogen-containing ionic liquids respectively. The wear mechanisms and surface interactions are discussed in terms of ionic liquid-metal surface interactions from optical and SEM images and EDS analysis.


2019 ◽  
Vol 67 (2) ◽  
Author(s):  
Rui Ma ◽  
Weimin Li ◽  
Qin Zhao ◽  
Dongdong Zheng ◽  
Xiaobo Wang

RSC Advances ◽  
2021 ◽  
Vol 11 (33) ◽  
pp. 20164-20172
Author(s):  
Yufeng Yang ◽  
Qing Liu ◽  
Aibing Chen ◽  
Youan Ji

In this work, five halogen-free ionic liquids (HFILs) were designed and employed to separate phenols from simulated oils, and all of them showed excellent separation performance.


2016 ◽  
Vol 18 (32) ◽  
pp. 22458-22466 ◽  
Author(s):  
M. Golets ◽  
M. R. Shimpi ◽  
Y.-L. Wang ◽  
O. N. Antzutkin ◽  
S. Glavatskih ◽  
...  

In the last few decades, ionic liquids (ILs) have gained significant attention as lubricants and lubricant additives due to their polar nature, low vapour pressure and tunable physicochemical properties.


Nano Research ◽  
2021 ◽  
Author(s):  
Ming Chen ◽  
Liming Xie ◽  
Changting Wei ◽  
Yuan-Qiu-Qiang Yi ◽  
Xiaolian Chen ◽  
...  

2011 ◽  
Vol 47 (41) ◽  
pp. 11516 ◽  
Author(s):  
Jie Zhao ◽  
Feng Yan ◽  
Lihua Qiu ◽  
Yueguang Zhang ◽  
Xiaojian Chen ◽  
...  

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