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Research Article | Open Access

A novel polyionic liquid with lubricity and viscosity-increasing dual functionalities as the additive in aqueous lubrication system

Bo YU1,2,3,5, Kun ZOU1,2,3,5, Rui WANG2,3, Qiang CHEN3, Rui DONG2, Xiao LIU3, Jiaying ZHANG2,3, Wenquan LV2,3, Qiangliang YU2,3,4, Meirong CAI2,3,4 ( ), Feng ZHOU2,3 ( )
College of Science, Nanjing Forestry University, Nanjing 210037, China
State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
Shandong Laboratory of Advanced Materials and Green Manufacturing at Yantai, Yantai 264006, China
Yantai Zhongke Research Institute of Advanced Materials and Green Chemical Engineering, Yantai 264006, China
Institute of Polymer Materials, Nanjing Forestry University, Nanjing 210037, China
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Abstract

The polyionic liquid poly-PEGMA-r-METAC (PPM) with quaternary ammonium has been synthesized and evaluated as additive in aqueous lubricating fluids. The rheological behavior of aqueous lubricating fluids with PPM has been characterized to confirm PPM’s function as a viscosity modifier. The tribological behavior of aqueous lubricating fluids with PPM has been investigated on SRV-V and MTM testing machines. It was found that PPM has excellent viscosity-increasing, lubricating, and anti-wear properties as an additive for aqueous, which can be attributed to the ability of PPM to form the protective film and boundary tribofilm generated from complex tribochemical reaction on rubbing surface. The obtained PPM with dual functions of anti-corrosion additives and viscosity index improver can play an important role in diverse lubrication regimes.

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Keywords

polyionic liquidlubricant additivesviscosity modifierlubrication regime

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Friction
Volume 12 Issue 4,
April 2024
Pages 698-710
DOI: 10.1007/s40544-023-0792-0

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YU B, ZOU K, WANG R, et al. A novel polyionic liquid with lubricity and viscosity-increasing dual functionalities as the additive in aqueous lubrication system. Friction, 2024, 12(4): 698-710. https://doi.org/10.1007/s40544-023-0792-0

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Received: 29 January 2023
Revised: 04 May 2023
Accepted: 21 June 2023
Published: 15 December 2023
© The author(s) 2023.

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