Functionalized ionic liquid lubricating agent

An ionic liquid, functionalized technology, used in lubricating compositions, additives, petroleum industry, etc., can solve the problems of limited wide application and poor anti-wear performance, and achieve the effect of improving anti-wear performance and tight adsorption

Inactive Publication Date: 2013-10-09
陈立功
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the actual application process, the anti-wear performance of ionic liquids is poor at high working temperatures, which limits their wide application in some fields with strict requirements such as aviation and aerospace.

Method used

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  • Functionalized ionic liquid lubricating agent
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  • Functionalized ionic liquid lubricating agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Mix 0.1mol N-methylimidazole and 0.1mol ethyl chloroacetate in 100mL of acetone, then place the mixture in a microwave oven with a radiant power of 240W, heat intermittently for 30S, 20S, 20S, 15S, 15S, 15S, and At each interval, remove the reaction bottle from the microwave oven and shake and mix for 10 seconds. After the reaction, the reaction system changes from turbid to viscous liquid. Wash it with 25mL ether for 3 times, and let it stand for layers. The lower layer is a viscous liquid, and the upper layer is a transparent solution. , separate the lower layer liquid, and carry out rotary evaporation under reduced pressure at room temperature to obtain a functionalized ionic liquid intermediate whose anion is a halogen anion; then it is mixed with 0.1mol NaBF 4 Mix the acetonitrile solution and stir at room temperature (25°C) for 48 hours. After the reaction, remove the solid by filtration, and wash the solid with ether, then combine the filtrates, rotary distillatio...

Embodiment 2

[0063] Mix 0.1mol N-methylimidazole and 0.1mol ethyl chloroacetate in 100mL of acetone, then place the mixture in a microwave oven with a radiant power of 240W, heat intermittently for 30S, 20S, 20S, 15S, 15S, 15S, and At each interval, remove the reaction bottle from the microwave oven and shake and mix for 10 seconds. After the reaction, the reaction system changes from turbid to viscous liquid. Wash it with 25mL ether for 3 times, and let it stand for layers. The lower layer is a viscous liquid, and the upper layer is a transparent solution. , separate the lower layer liquid and carry out rotary evaporation under reduced pressure at room temperature to obtain a functionalized ionic liquid intermediate whose anion is a halide anion; then it is mixed with 0.1mol bistrifluoromethanesulfonimide lithium aqueous solution, room temperature ( 25°C) Stir the reaction for 48h. After the reaction, remove the solid by filtration and wash the solid with ether, then combine the filtrates,...

Embodiment 3

[0070] The lubricant prepared in Example 1 was mixed with the ester oil diisooctyl sebacate at a mass ratio of 1:100 to obtain a lubricant containing base oil.

[0071] According to the method of Example 1, the performance test of the lubricant prepared in this example was carried out, and the test results are shown in Table 1. Table 1 is a summary of the performance test data of the lubricant prepared in the example of the present invention.

[0072] The friction performance test of the prepared lubricant was carried out using a vertical universal friction and wear testing machine (Jinan Shunmao Testing Instrument Co., Ltd.), the test conditions: speed 1450±50r / min, load 392N, temperature at room temperature, time 30min; used Steel ball: GCR15 bearing steel, diameter 12.7mm, hardness 59-61HRC; test results see figure 1 and figure 2 , figure 1 is the friction coefficient test graph of the lubricant prepared in the embodiment of the present invention and the comparative exam...

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Abstract

The invention provides a functionalized ionic liquid lubricating agent. The functionalized ionic liquid lubricating agent comprises an ionic liquid shown in a formula (I) and an ionic liquid shown in a formula (II). Ester groups, hydroxyl groups, carboxylic groups or sulfonic acid groups are introduced into an imidazole ionic liquid to serve as functionalized radicals, so that the functionalized ionic liquid lubricating agent is easily adsorbed on the surface of a metal through an electrostatic effect, thus the wear resistance of the lubricating agent at a high temperature is improved; and the ionic liquids containing different functionalized radicals are mixed, so that the functionalized ionic liquid lubricating agent is tightly adsorbed on the metal, and the wear resistance of the lubricating agent is further improved. The results of performance test on the prepared lubricating agent show that the viscosity index of the functionalized ionic liquid lubricating agent is greater than 90, the thermal decomposition temperature of the functionalized ionic liquid lubricating agent is higher than 300 DEG C, and the functionalized ionic liquid lubricating agent has good wear resistance on the metal. The formula (I) and the formula (II) are shown in descriptions.

Description

technical field [0001] The invention relates to the technical field of lubricants, in particular to a functionalized ionic liquid lubricant. Background technique [0002] Ionic liquid refers to a molten salt system that is liquid at room temperature or near room temperature and is composed entirely of positive and negative ions. It is odorless, odorless, pollution-free, non-flammable, easy to separate from the product, easy to recycle, and can be used repeatedly. , easy to use and other advantages, it is an ideal substitute for traditional volatile solvents, it effectively avoids the environmental, health, safety and other problems caused by traditional organic solvents in the process of use, and is an environmentally friendly and efficient green solvent, suitable for current The clean technology and sustainable development requirements advocated have been widely recognized and accepted by people, and have attracted extensive attention in the fields of electrochemistry, cata...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M133/46C10M141/08C10N30/06
Inventor 陈立功朱立业刘汉臣
Owner 陈立功
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