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Benzothiazole derivative multifunctional lubricating oil additive, preparation method and application thereof

A lubricating oil additive, benzothiazole technology, applied in the field of benzothiazole derivative multifunctional lubricating oil additive, can solve the problems of poor oxidation resistance, electrochemical corrosion and the like, achieve high synthesis yield, mild reaction conditions, Excellent extreme pressure effect

Inactive Publication Date: 2018-04-20
DONGGUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, ZDDP is easy to produce ash, which causes electrochemical corrosion, and the defects such as poor lubrication and oxidation resistance under high temperature conditions greatly limit its use.

Method used

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  • Benzothiazole derivative multifunctional lubricating oil additive, preparation method and application thereof
  • Benzothiazole derivative multifunctional lubricating oil additive, preparation method and application thereof
  • Benzothiazole derivative multifunctional lubricating oil additive, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] 0.05mol (9.27g) of dihexylamine, 0.06mol (6.07g) of triethylamine and 80mL of chloroform were sequentially added to a 250mL three-necked flask, and 0.05mol (6.78g) of chloroacetyl chloride was added dropwise in an ice bath, and the reaction was stirred for 3.0h. After the reaction was completed, the reaction solution was washed with saturated brine, dried over anhydrous magnesium sulfate, filtered, and the filtrate was rotary evaporated to remove the solvent to obtain N,N-dihexyl-2-chloroacetamide.

[0039] Add 0.05mol (8.36g) 2-mercaptobenzothiazole, a small amount of tetrabutylammonium bromide, 60mL 5.0% (mass fraction) NaOH aqueous solution and 30mL tetrahydrofuran to a 250mL three-necked flask, stir at room temperature until the solids are completely dissolved, and 0.06mol (4.57g) of carbon disulfide was added dropwise and reacted for 0.5h. The above-mentioned N,N-dihexyl-2-chloroacetamide was dissolved in a small amount of tetrahydrofuran and dropped into the above...

Embodiment 2

[0041] 0.05mol (12.08g) of dioctylamine, 0.06mol (6.07g) of triethylamine and 80mL of chloroform were sequentially added to a 250mL three-necked flask, and 0.05mol (6.78g) of chloroacetyl chloride was added dropwise in an ice bath, and the reaction was stirred for 3.0h. After the reaction was completed, the reaction liquid was washed with saturated brine, dried over anhydrous magnesium sulfate, filtered, and the filtrate was rotary evaporated to remove the solvent to obtain N,N-dioctyl-2-chloroacetamide.

[0042] Add 0.05mol (8.36g) 2-mercaptobenzothiazole, a small amount of tetrabutylammonium bromide, 60mL 5.0% (mass fraction) NaOH aqueous solution and 30mL tetrahydrofuran to a 250mL three-necked flask, stir at room temperature until the solids are completely dissolved, and 0.06mol (4.57g) of carbon disulfide was added dropwise and reacted for 0.5h. The above-mentioned N,N-dioctyl-2-chloroacetamide was dissolved in a small amount of tetrahydrofuran and dropped into the above ...

Embodiment 3

[0044] 0.05mol (6.46g) of n-octylamine, 0.06mol (6.07g) of triethylamine and 80mL of chloroform were sequentially added to a 250mL three-necked flask, and 0.05mol (6.78g) of chloroacetyl chloride was added dropwise in an ice bath, and the reaction was stirred for 3.0h. After the reaction was completed, the reaction liquid was washed with saturated brine, dried over anhydrous magnesium sulfate, filtered, and the filtrate was rotary evaporated to remove the solvent to obtain N-n-octyl-2-chloroacetamide.

[0045] Add 0.05mol (8.36g) 2-mercaptobenzothiazole, a small amount of tetrabutylammonium bromide, 60mL 5.0% (mass fraction) NaOH aqueous solution and 30mL tetrahydrofuran to a 250mL three-necked flask, stir at room temperature until the solids are completely dissolved, and 0.06mol (4.57g) of carbon disulfide was added dropwise and reacted for 0.5h. The above-mentioned N-n-octyl-2-chloroacetamide was dissolved in a small amount of tetrahydrofuran and then dropped into the above-...

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Abstract

The invention discloses a benzothiazole derivative multifunctional lubricating oil additive, a preparation method and application thereof. The preparation method specifically includes: firstly subjecting alkylamine and chloroacetyl chloride to amidation reaction to obtain alkyl chloroacetamide, then reacting 2-mercaptobenzothiazole with carbon disulfide and alkyl chloroacetamide to obtain the benzothiazole derivative multifunctional lubricating oil additive with a structure shown as general formula I. The benzothiazole derivative multifunctional lubricating oil additive has the characteristicsof simple preparation method, mild process conditions, easily available raw material, low synthesis cost, high synthesis yield and the like, can be used as an extreme pressure, antiwear, antifrictionand corrosion resistant additive of lubricating oil, can obviously improve the bearing capacity of base oil and improve the wear resistance and antifriction performance, and is an environment-friendly multifunctional lubricating oil additive.

Description

Technical field: [0001] The invention relates to a benzothiazole derivative multifunctional lubricating oil additive and its preparation method and application. The derivative can be widely used in the fields of machinery, energy, environment, material, chemical industry and the like, and is especially suitable as a lubricating oil additive. Background technique: [0002] The rapid development of modern industry has accelerated the consumption of energy. While people are looking for new energy materials, they have conducted in-depth research on energy-saving and consumption-reducing technologies. Lubricating materials can fully lubricate the friction pair, thereby reducing friction, reducing wear, improving mechanical efficiency, and reducing energy loss. For decades, zinc dialkyl dithiophosphate (ZDDP) has been widely used in the field of lubricating oil due to its excellent anti-oxidation and anti-wear properties, simple preparation process and low cost. However, ZDDP is ...

Claims

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Application Information

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IPC IPC(8): C07D277/74C10M135/36C10N30/06C10N30/08C10N30/12
CPCC07D277/74C10M135/36C10M2219/104C10N2030/06C10N2030/08C10N2030/12C10N2030/41C10N2030/42C10N2030/45C10N2030/64C10N2010/02
Inventor 赵鸿斌余磊鲁浩廖文波王永东彭敏吴晓金莫柱荣
Owner DONGGUAN UNIV OF TECH
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