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Halogen-free choline chelated boron ionic liquid lubricating additive and application thereof

A technology of lubricating additives and ionic liquids, used in additives, lubricating compositions, petroleum industry, etc., can solve the problems of rising friction coefficient, low friction coefficient, lubricant loss, etc., and achieve excellent anti-friction and anti-wear properties, excellent anti-corrosion Sexual, Environmentally Friendly Effects

Active Publication Date: 2020-04-03
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Wang Xiangzhong (Wang Xiangzhong, Wang Yumin. Research on choline chloride as a lubricant [J]. Henan Science. 2001.29 (5): 538-540) studied the application of choline chloride on the surface of steel-steel friction pair with different speeds and different loads. Lubricating properties under certain conditions, the results show that using choline chloride as a lubricant, a low friction coefficient can appear between steel-steel friction pairs, but after a period of friction, the lubricant will be lost and the friction coefficient will increase

Method used

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  • Halogen-free choline chelated boron ionic liquid lubricating additive and application thereof
  • Halogen-free choline chelated boron ionic liquid lubricating additive and application thereof
  • Halogen-free choline chelated boron ionic liquid lubricating additive and application thereof

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Embodiment 1

[0016] The preparation method of halogen-free choline chelated boron ionic liquid lubricating additive comprises the following steps:

[0017] (1) Weigh 1.236g (0.02mol) of boric acid and add it to 14.2616g (0.04mol) of glycerol monooleate. Stir continuously at 80°C for 3h, and the mixture changes from colorless to light yellow.

[0018] (2) Add 5.2683g (0.02mol) choline hydroxide aqueous solution to the mixture obtained in step (1), and continue to stir and react for 3h at 120°C. As the reaction proceeds, the water is continuously evaporated, and the mixture gradually changes from light yellow It is dark brown, then vacuum-dried at 70°C for 48 hours, and finally a dark brown viscous liquid product [cho][GMOB] is obtained. [cho][GMOB] uses choline hydroxide as a cation and diglyceride monooleate to chelate boron is an anion, the chemical structural formula is shown in formula (2),

[0019]

[0020] The molar ratio of choline hydroxide aqueous solution to diglycerol monoole...

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Abstract

The invention provides a halogen-free choline chelated boron ionic liquid lubricating additive and an application thereof; the halogen-free choline chelated boron ionic liquid lubricating additive isprepared by taking glycerol monooleate, boric acid and choline hydroxide as raw materials through two steps of complexing reaction and acid-base reaction, wherein the glycerol monooleate is in a commercially available analytically pure grade. The ionic liquid lubricating additive disclosed by the invention has excellent corrosion resistance and antifriction and antiwear properties at high temperature, and is environment-friendly.

Description

technical field [0001] The invention provides a halogen-free choline chelated boron ion liquid lubricating additive and its application, and relates to the technical field of ionic liquid and industrial lubrication. Background technique [0002] An ionic liquid is a molten salt at room temperature composed of cations and anions, and its melting point is generally below 100 °C. Ionic liquids have the characteristics of good thermal stability, good solubility, low vapor pressure, designable structure, and adjustable performance, and are widely used in catalytic synthesis, material preparation, extraction and separation, tribology and other fields. The synthesis methods of ionic liquids are roughly divided into direct synthesis method and two-step synthesis method. The direct synthesis method includes acid-base neutralization and quaternization reaction, which is economical and simple to operate, has no by-products, and the product is easy to purify. In recent years, environme...

Claims

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Application Information

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IPC IPC(8): C10M139/00C10M133/08C10M169/04C10N30/06C10N30/12
CPCC10M133/08C10M139/00C10M169/04C10M2209/1045C10M2215/042C10M2227/061
Inventor 王晓波柳军明赵改青赵勤李维民
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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