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Lubricating grease composition and preparation method thereof

A technology of grease composition and monostearate, which is applied in the field of grease, can solve the problems of lubrication and anti-wear performance, waste, pollution of the surrounding environment, etc., and achieve excellent stability, convenient storage, and excellent friction and wear performance Effect

Inactive Publication Date: 2015-02-18
WUXI FEITIAN GREASE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patent CN 102947429 A discloses a lubricating oil composition containing nanoporous particles for reducing friction. However, when the lubricating oil on the surface of the workpiece is squeezed during motion, the workpieces are often in a state of boundary lubrication. It not only causes waste, but also pollutes the surrounding environment, and the lubrication and anti-wear properties are affected
In addition, liquid lubricating oil is inconvenient in transportation, packaging and storage

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) Stir 70kg of 100# engine oil, 2kg of urea, 0.8kg of triethanolammonium salt and 0.05kg of diisocyanate at 45°C for 30 minutes;

[0029] (2) Add 10kg of monostearate, 3kg of polypropylene wax and 0.5kg of dioctyl phthalate to the above mixture, stir at 100°C for 20min, and adjust the pH of the above mixed solution with 0.1mol / L hydrochloric acid solution The value is 6.7, keep stirring for 1h;

[0030] (3) Suction filter the product in step 2, wash it with water three times, put it in an oven, and dry it for 3 hours to obtain a grease composition.

[0031] The performance test results of the prepared grease composition are shown in Table 1.

Embodiment 2

[0033] (1) Stir 80kg of 220# worm gear oil, 2.5kg of urea, 0.5kg of triethanolammonium salt and 0.8kg of diisocyanate at 50°C for 30 minutes;

[0034] (2) Add 13kg of monostearate, 3kg of polypropylene wax and 0.8kg of dioctyl phthalate to the above mixture, stir at 100°C for 20min, and adjust the pH of the above mixed solution with 0.1mol / L hydrochloric acid solution The value is 6.7, keep stirring for 1h;

[0035] (3) Suction filter the product in step 2, wash it with water three times, put it in an oven, and dry it for 3 hours to obtain a grease composition.

[0036] The performance test results of the prepared grease composition are shown in Table 1.

Embodiment 3

[0038] (1) Stir 85kg of 220# worm gear oil, 3kg of urea, 1kg of triethanolammonium salt and 0.1kg of diisocyanate at 48°C for 30min;

[0039] (2) Add 11kg of monostearate, 4kg of polypropylene wax, 0.6kg of dioctyl phthalate and N,N'-bis-(3-(3,5-di-tert-butyl- 1kg of 4-hydroxyphenyl)propionyl)hexamethylenediamine, stirred at 90°C for 20min, and adjusted the pH value of the above mixed solution to 6.7 with 0.1mol / L hydrochloric acid solution, and kept stirring for 1h;

[0040] (3) Suction filter the product in step 2, wash it with water three times, put it in an oven, and dry it for 3 hours to obtain a grease composition.

[0041] The performance test results of the prepared grease composition are shown in Table 1.

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PUM

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Abstract

The invention discloses lubricating grease composition and a preparation method thereof. The lubricating grease composition comprises components in parts by weight as follows: 70-85 parts of base oil, 10-13 parts of monostearate, 2-4 parts of polypropylene wax, 2-3 parts of urea, 0.2-1 part of triethanolamine salt, 0.5-0.8 parts of dioctyl phthalate and 0.05-0.8 parts of diisocyanate. The preparation method comprises steps as follows: (1), performing magnetic stirring on 70-85 parts of the base oil, 2-3 parts of the urea, 0.2-1 part of the triethanolamine salt and 0.05-0.8 parts of the diisocyanate for 30 min; (2), adding 10-13 parts of the monostearate, 2-4 parts of the polypropylene wax, 0.5-0.8 parts of the dioctyl phthalate and 0-1 part of an antioxidant to the mixture, stirring the mixture at the temperature of 80-100 DEG C for 20 min, adjusting the pH value of the mixed solution to 6.7 with 0.1 mol / L of a hydrochloric acid, and stirring the mixed solution for 1 h at the same temperature; (3), performing suction filtration on the product in step (2), washing the product with water thrice, and placing the product into an oven for drying for 3 h to obtain the lubricating grease composition.

Description

technical field [0001] The invention belongs to the field of lubricating grease, in particular to a lubricating grease composition and a preparation method thereof. Background technique [0002] Lubricating oil is generally a non-volatile oily lubricant that can be used on various types of machinery to reduce friction and protect the liquid lubricant of machinery and processed parts. It has excellent performances such as lubrication, cooling, rust prevention, cleaning, sealing and buffering. Chinese patent CN 102947429 A discloses a lubricating oil composition containing nanoporous particles for reducing friction. However, when the lubricating oil on the surface of the workpiece is squeezed during motion, the workpieces are often in a state of boundary lubrication. It not only causes waste, but also pollutes the surrounding environment, and the lubrication and anti-wear properties are affected. In addition, liquid lubricating oil is inconvenient in transportation, packaging...

Claims

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Application Information

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IPC IPC(8): C10M169/06C10M169/00C10M177/00C10N50/10C10N30/06
Inventor 张群敏许华平
Owner WUXI FEITIAN GREASE
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