Tribological Performance of an Imidazolium Ionic Liquid-Functionalized SiO2@Graphene Oxide as an Additive

2021 ◽  
Author(s):  
Wei Song ◽  
Jincan Yan ◽  
Hongbing Ji
Keyword(s):  
Ionic Liquid ◽  
Graphene Oxide ◽  
Tribological Performance ◽  
Imidazolium Ionic Liquid

scholarly journals Imidazolium Ionic Liquid Modified Graphene Oxide: As a Reinforcing Filler and Catalyst in Epoxy Resin

Polymers ◽  
2017 ◽  
Vol 9 (12) ◽  
pp. 447 ◽  
Author(s):  
Qing Lyu ◽  
Hongxia Yan ◽  
Lin Li ◽  
Zhengyan Chen ◽  
Huanhuan Yao ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Graphene Oxide ◽  
Epoxy Resin ◽  
Imidazolium Ionic Liquid ◽  
Modified Graphene Oxide ◽  
Modified Graphene ◽  
Reinforcing Filler

Significantly enhancing tribological performance of epoxy by filling with ionic liquid functionalized graphene oxide

Carbon ◽  
2018 ◽  
Vol 136 ◽  
pp. 309-319 ◽  
Author(s):  
Fuyan Zhao ◽  
Ligang Zhang ◽  
Guitao Li ◽  
Yuexia Guo ◽  
Huimin Qi ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Graphene Oxide ◽  
Tribological Performance ◽  
Functionalized Graphene ◽  
Functionalized Graphene Oxide

Effect of filler content on scratch behavior and tribological performance of polyester/graphene oxide nanocomposite coating

2021 ◽  
Author(s):  
Nedia Gafsi ◽  
Raquel Verdejo ◽  
Mohamed Kharrat ◽  
Massimiliano Barletta ◽  
Miguel Ángel López-Manchado ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Filler Content ◽  
Nanocomposite Coating ◽  
Tribological Performance ◽  
Scratch Behavior

scholarly journals High-Tribological-Performance Polymer Nanocomposites: An Approach Based on the Superlubricity State of the Graphene Oxide Agglomerates

Polymers ◽  
2021 ◽  
Vol 13 (14) ◽  
pp. 2237
Author(s):  
Eder H. C. Ferreira ◽  
Angela Aparecida Vieira ◽  
Lúcia Vieira ◽  
Guilhermino J. M. Fechine
Keyword(s):  
Graphene Oxide ◽  
High Viscosity ◽  
Tribological Performance ◽  
Multilayer Graphene ◽  
High Concentration ◽  
Scanning Calorimetry ◽  
Mechanical Reinforcement ◽  
Transmission Electron ◽  
Twin Screw ◽  
Mechanical Tensile

Here, nanocomposites of high-molecular-weight polyethylene (HMWPE) and HMWPE-UHMWPE (80/20 wt.%) containing a low amount of multilayer graphene oxide (mGO) (≤0.1 wt.%) were produced via twin-screw extrusion to produce materials with a higher tribological performance than UHMWPE. Due to the high viscosity of both polymers, the nanocomposites presented a significant concentration of agglomerates. However, the mechanical (tensile) and tribological (volumetric loss) performances of the nanocomposites were superior to those of UHMWPE. The morphology of the nanocomposites was investigated using differential scanning calorimetry (DSC), microtomography, and transmission electron microscopy (TEM). The explanation for these results is based on the superlubricity phenomenon of mGO agglomerates. It was also shown that the well-exfoliated mGO also contained in the nanocomposite was of fundamental importance as a mechanical reinforcement for the polymer. Even with a high concentration of agglomerates, the nanocomposites displayed tribological properties superior to UHMWPE’s (wear resistance up to 27% higher and friction coefficient up to 57% lower). Therefore, this manuscript brings a new exception to the rule, showing that agglomerates can act in a beneficial way to the mechanical properties of polymers, as long as the superlubricity phenomenon is present in the agglomerates contained in the polymer.

Microwave-Assisted Preparation of Molecularly Imprinted Monolith Combining Imidazolium Ionic Liquid and POSS for Enhanced Extraction of Baicalin-Like Compounds in Scutellaria Baicalensis by means of In-Capillary SPME Followed by on-line LC and off-line LC-MS/MS

2021 ◽  
Author(s):  
Xiaohan Zhang ◽  
Le Gao ◽  
Liying Niu ◽  
Xiaodong Bi
Keyword(s):  
Ionic Liquid ◽  
Molecularly Imprinted Polymers ◽  
Scutellaria Baicalensis ◽  
Synthetic Methods ◽  
Imidazolium Ionic Liquid ◽  
Molecularly Imprinted ◽  
Imprinted Polymers ◽  
Microwave Assisted ◽  
On Line ◽  
Molecularly Imprinted Monolith

Molecularly imprinted polymers (MIPs) possess target-customized and range-adjustable selectivity, and hence have been attracting increasing efforts to develop new synthetic methods and new forms of applications. By wisely choosing functional...

Oil-soluble ionic liquid to lubricate silicon

2021 ◽  
pp. 135065012098488
Author(s):  
Waleed Al-Sallami ◽  
Pourya Parsaeian ◽  
Abdel Dorgham ◽  
Anne Neville
Keyword(s):  
Ionic Liquid ◽  
High Temperature ◽  
Friction And Wear ◽  
Tribological Performance ◽  
Considerable Reduction ◽  
Zinc Dialkyldithiophosphate ◽  
Lubrication Mechanism ◽  
Wear Coefficient ◽  
Wear Performance ◽  
Micro Scale

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.

Cross-linked ionic resins and gels from epoxide-functionalized imidazolium ionic liquid monomers

Polymer ◽  
2014 ◽  
Vol 55 (16) ◽  
pp. 3305-3313 ◽  
Author(s):  
William M. McDanel ◽  
Matthew G. Cowan ◽  
Trevor K. Carlisle ◽  
Anna K. Swanson ◽  
Richard D. Noble ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Imidazolium Ionic Liquid

Physicochemical and radiolytic degradation properties of dihexyloctanmide-imidazolium ionic liquid

2017 ◽  
Vol 247 ◽  
pp. 93-99 ◽  
Author(s):  
Alok Rout ◽  
Satyabrata Mishra ◽  
K.A. Venkatesan ◽  
M.P. Antony ◽  
N.K. Pandey ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Imidazolium Ionic Liquid ◽  
Radiolytic Degradation ◽  
Degradation Properties
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