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Lubricant compositions containing anti-corrosion ionic liquids

A technology of lubricant composition and ionic liquid, applied in the directions of lubricating composition, additives, petroleum industry, etc., can solve the problems of poor lubricating oil compatibility, substrate corrosion, high synthesis cost, and achieve good friction stability and anti-wear reduction. The effect of reducing friction and corrosion

Active Publication Date: 2015-08-26
YANTAI ZHONGKE RES INST OF ADVANCED MATERIALS & GREEN CHEM ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The ionic liquids that have been reported in the literature as lubricants are generally ionic liquids in which quaternary ammonium, quaternary phosphorus, pyridine, and imidazoles are cationic. In the process of their application research, it was found that there are still some problems, such as high synthesis costs, and common lubricating oils. Poor compatibility and corrosion to the substrate, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Contains 0.5% [Li(BTA(OR 2 )]BF 4 Synthesis of Polyalkylcyclopentane Lubricant Composition

[0029] Add 19.22 g (0.16 mol) of diethylene glycol monomethyl ether and 3.68 g (0.16 mol) of sodium into a 250 ml three-neck flask, and stir at about 115 °C under the protection of argon until the sodium reaction is complete to obtain a sodium alkoxide solution. With 200 ml tetrahydrofuran as solvent, add 26.82 g (0.16 mol) of 1-chloromethylbenzotriazole to the above sodium alkoxide solution, stir and react at room temperature for about 18 h, dissolve the product in chloroform, wash with water, pass through silica gel After separation by column chromatography (petroleum ether / ethyl acetate=20:1), the benzotriazole diglycol monomethyl ether derivative BTA (OR 2 ) 26.86 g (66.8% yield). 0.0364 g BTA (OR 2 ) with 0.0136 g LiBF 4 Added to 9.95 g of polyalkylcyclopentane, stirred until forming 0.5% [Li(BTA(OR 2 )]BF 4 uniform lubricant. Its average friction coefficient and we...

Embodiment 2

[0031] Contains 1.0% [Li(BTA(OR 3 )]BF 4 Synthesis of Polyalkylcyclopentane Lubricant Composition

[0032] Add 13.14 g (0.08 mol) of triethylene glycol monomethyl ether and 1.84 g (0.08 mol) of sodium into a 250 ml three-neck flask, and stir at about 120 °C under the protection of argon until the sodium reaction is complete to obtain a sodium alkoxide solution. With 150 ml tetrahydrofuran as solvent, 13.41 g (0.08 mol) 1-chloromethylbenzotriazole was added to the above-mentioned sodium alkoxide solution, stirred and reacted at room temperature for about 18 h, the product was dissolved in chloroform and washed with water, and passed through silica gel After separation by column chromatography (petroleum ether / ethyl acetate=20:1), the benzotriazole triethylene glycol monomethyl ether derivative BTA (OR 3 ) 15.14 g (64.1% yield). 0.0380 g BTA (OR 3 ) with 0.0120 g LiBF 4 Added to 4.95 g of polyalkylcyclopentane, stirred until the formation of 1.0% [Li(BTA(OR 3 )]BF 4 unifo...

Embodiment 3

[0034] Contains 1.5% [Li(BTA(OR 4 )]BF 4 Synthesis of Polyalkylcyclopentane Lubricant Composition

[0035] Add 12.46 g (0.06 mol) tetraethylene glycol monomethyl ether and 1.38 g (0.06 mol) sodium into a 250 ml three-necked flask, and stir at about 125 °C under the protection of argon until the sodium reaction is complete to obtain a sodium alkoxide solution. With 100 ml tetrahydrofuran as solvent, add 10.06 g (0.06 mol) 1-chloromethylbenzotriazole to the above sodium alkoxide solution, stir and react at room temperature for about 20 h, dissolve the product in chloroform, wash with water, and pass through silica gel After separation by column chromatography (petroleum ether / ethyl acetate=20:1), the benzotriazole tetraethylene glycol monomethyl ether derivative BTA (OR 4 ) 12.27 g (62.5% yield). 0.0392 g BTA (OR 4 ) with 0.0108 g LiBF 4 Added to 3.30 g polyalkylcyclopentane, stirred until the formation of 1.5% [Li(BTA(OR 4 )]BF 4 uniform lubricant. Its average friction ...

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Abstract

The invention discloses a lubricant composition containing a corrosion resistant ionic liquid. The composition comprises, by mass, 99.9%-98% of base oil and 0.1%-2% of the corrosion resistant ionic liquid, wherein the base oil is selected from multiply-alkylated cyclopentane with 2 to 5 alkyl chains, the corrosion resistant ionic liquid is obtained by compounding one of benzotriazole diglycol mono methyl ether, benzotriazole triglycol mono methyl ether and benzotriazole tetraglycol mono methyl ether with one of lithium tetrafluoroborate, lithium hexafluorophosphate, lithium trifluoromethanesulfonate and lithium bis(trifluoromethanesulphonyl)imide. The ionic liquid and the lubricant composition can be synchronously synthesized, the process is simple, and the lubricant composition has good corrosion resistance and excellent tribological properties.

Description

technical field [0001] The invention relates to a lubricant composition containing an anti-corrosion ionic liquid. The lubricant composition of the ionic liquid has anti-corrosion properties and excellent anti-friction and anti-wear properties. Background technique [0002] Since the 1940s, ionic liquids have become the frontier and research hotspot of contemporary chemical science due to their own advantages. Zhao, H. Chem. Eng. Comm. 2006, 193 , 1660-1677.), its characteristics of non-flammability, low melting point, extremely low volatility and high thermal stability are very consistent with the expected performance of ideal lubricants, and it has become a new type of lubricant with great development prospects. agent, and was first discovered and published internationally by Liu Weimin et al. in 2001 (Ye, C.; Liu, W.; Chen, Y.; Yu, L. Chem. Commun. 2001, 21 , 2244-2245.), since then aroused many researchers at home and abroad to study the tribological properties of ion...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M133/44C10M135/10C10N30/12C10N30/06
Inventor 凡明锦宋增红周峰刘维民梁永民
Owner YANTAI ZHONGKE RES INST OF ADVANCED MATERIALS & GREEN CHEM ENG
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