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Ionic liquid lubricant for titanium alloy and preparation method and applications thereof

A technology for ionic liquids and lubricants, applied in the direction of sulfonate preparation, lubricating compositions, chemical instruments and methods, etc., can solve problems such as unsatisfactory and unsatisfactory lubricating performance, achieve excellent anti-wear and anti-friction performance, and improve friction The effect of academic performance

Inactive Publication Date: 2019-04-19
BAOJI UNIV OF ARTS & SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The study found that because the surface of titanium-based metal friction pair materials is easily oxidized to form a passivated titanium dioxide oxide film, the lubrication performance of traditional liquid lubricants such as polyolefin, polyether, polyester, etc. on the surface of titanium-based friction pair materials is not ideal. , cannot meet the needs of practical applications

Method used

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  • Ionic liquid lubricant for titanium alloy and preparation method and applications thereof
  • Ionic liquid lubricant for titanium alloy and preparation method and applications thereof
  • Ionic liquid lubricant for titanium alloy and preparation method and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1: Ionic liquid lubricant C 6 f 13 SO 3 P 4444 preparation of

[0027] Potassium perfluorohexylsulfonate and tetra-n-butylphosphine bromide with a molar ratio of 1:1 were dissolved in acetone and reacted at room temperature for 24 hours. After the reaction was completed, the solid precipitate was removed by filtration and extracted with ethyl acetate. The organic phase is washed 3 times with equal volumes of water, and the solvent is evaporated to obtain the final product (A). 6 f 13 SO 3 P 4444 express.

[0028] The final product (A)C was characterized using NMR spectroscopy 6 f 13 SO 3 P 4444 : 1 HNMR (400MHz, CDCl3) δ (ppm): 0.90 (t, J = 7.1Hz, 1H), 1.58–1.35 (m, 16H), 2.26–2.03 (m, 8H), 13 C NMR (100MHz, CDCl3) δ (ppm): 23.88, 23.73, 23.59, 23.54, 18.75, 18.28.

[0029]The friction and wear properties of the ionic liquid lubricant (A) were evaluated, and compared with the traditional ionic liquids L-F104, L-P104, and L-B104. The average fri...

Embodiment 2

[0030] Embodiment 2: Ionic liquid lubricant C 8 f 17 SO 3 P 4444 preparation of

[0031] Dissolve potassium perfluorooctane sulfonate and tetra-n-butylphosphine bromide in acetone with a molar ratio of 1:1, and react at room temperature for 24 hours. After the reaction, remove the solid precipitate by filtration and extract with ethyl acetate , the organic phase was washed 3 times with equal volumes of water, and the solvent was evaporated to obtain the final product (B), which was obtained by the simplified formula C 8 f 17 SO 3 P 4444 express.

[0032] The final product (B)C was characterized using NMR spectroscopy 8 f 17 SO 3 P 4444 : 1 H NMR (400MHz, CDCl3) δ (ppm): 0.91 (t, J = 7.1Hz, 12H), 1.46 (dt, J = 7.4, 3.8Hz, 16H), 2.25–2.06 (m, 8H), 13 C NMR (100MHz, CDCl 3 )δ (ppm): 23.89, 23.74, 23.61, 23.56, 18.78, 18.31, 13.20.

[0033] The friction and wear properties of the ionic liquid lubricant (B) were evaluated, and compared with the traditional ionic liqu...

Embodiment 3

[0034] Embodiment 3: Ionic liquid lubricant C 8 f 17 SO 3 P 8888 preparation of

[0035] Dissolve potassium perfluorooctane sulfonate and tetra-n-octylphosphine bromide in acetone at a molar ratio of 1:1, and react at room temperature for 24 hours. After the reaction, remove the solid precipitate by filtration and extract with ethyl acetate , the organic phase was washed 3 times with equal volumes of water, and the solvent was evaporated to obtain the final product (C). 8 f 17 SO 3 P 8888 express.

[0036] The final product (C)C was characterized using NMR spectroscopy 8 f 17 SO 3 P 8888 : 1 H NMR (400MHz, CDCl 3 )δ (ppm): 0.85 (dd, J = 7.5, 12H), 1.24 (s, 32H), 1.59–1.37 (m, 16H), 2.36–2.12 (m, 8H), 13 C NMR (100MHz, CDCl 3 )δ (ppm): 31.76, 30.87, 30.73, 29.03, 28.96, 22.65, 21.91, 21.86, 19.34, 18.87, 14.06.

[0037] Evaluate the friction and wear performance of the ionic liquid lubricant (C), and compare it with traditional ionic liquids L-F104, L-P104, and ...

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Abstract

The invention provides an ionic liquid lubricant for titanium alloy and a preparation method and applications thereof. The ionic liquid has a structure represented by the formula (I), in the formula (I), R1, R2, R3 and R4 individually represent a C2-C8 alkyl group and R5 represents a C1-C16 perfluoro-alkyl group. During the friction process, a firm and sequenced physical adsorption protective filmand a chemical reaction protective film are formed on the surface of a metal friction pair; and thus the lubricant has an excellent friction reducing performance and a wear resistant property.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, and in particular relates to a lubricant, in particular to an ionic liquid lubricant for titanium alloys and a preparation method and application thereof. technical background [0002] Titanium is widely distributed in the earth's crust. The world's reserves are about 3.4 billion tons, ranking 10th among all metal elements. It has important industrial value and broad development prospects. Titanium and its alloys have been widely used in aviation, aerospace, marine, chemical, medical and other fields due to their outstanding advantages such as low density, high specific strength, high and low temperature resistance, corrosion resistance, good plasticity, small thermal expansion coefficient and good biocompatibility. widely used. Titanium and its alloys are one of the most promising structural materials in the aerospace industry, mainly used to manufacture engine casings, structural com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F9/54C07C309/06C07C303/32C10M141/10C10N30/06
CPCC07C303/32C07C309/06C07F9/5407C10M141/10C10M2219/044C10M2223/06C10N2030/06C10N2030/56
Inventor 凡明锦靳亚英马琳王冬梅范晓丽
Owner BAOJI UNIV OF ARTS & SCI
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