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Lubricating grease

A technology of lubricating grease and lauryl hydroxystearin, which is applied in the field of lubricating oil, can solve the problems that the performance of lubricating grease needs to be improved, and achieve excellent thermal performance, dimensional stability, good fluidity, anti-rust function of high-temperature oxidation surface Effect

Inactive Publication Date: 2017-02-22
HANGZHOU DADI OCEAN ENVIRONMENT PROTECTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] CN100389183C (2008-5-21) discloses a kind of high dropping point lithium base lubricating grease and its preparation method, yet the performance of this lubricating grease still needs to be improved

Method used

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  • Lubricating grease
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Examples

Experimental program
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Effect test

Embodiment 1

[0070] A. Add 4 parts of lauryl hydroxystearic acid, 5 parts of petroleum calcium sulfonate, 2 parts of rosin, 8 parts of vegetable oil, (NH 4 ) x MoS 2 Add 7 parts, 3 parts of the first solid additive and 1.5 parts of the second solid additive to 88 parts of base oil, ultrasonically disperse, then add 0.05 parts of lithium hydroxide, 2.4 parts of potassium hydroxide and 20 parts of dicarboxylic acid, heat to 60 ℃ for 10 minutes to obtain the first reaction solution;

[0071] Among them, the base oil is a mixture of paraffin, cycloalkyl and polyalphaolefin in a weight ratio of 1:3:4; the viscosity of the base oil at 60°C is 100cSt, the open flash point is 230°C, and the pour point is -40 ℃;

[0072] The total base number of calcium petroleum sulfonate is 300;

[0073] The specific surface area of ​​PTFE is 2m 2 / g;

[0074] The particle size range of the first solid additive is 0.8-5 microns; wherein, the particles of 0.8-1 microns account for 20% of the total weight of...

Embodiment 2

[0078] In order, 7 parts of lauryl hydroxystearic acid, 10 parts of petroleum calcium sulfonate, 2-6 parts of rosin, 15 parts of vegetable oil, (NH 4 ) x MoS 2 Add 13 parts, 7 parts of the first solid additive and 6 parts of the second solid additive into 88-95 parts of base oil, ultrasonically disperse, then add 1.25 parts of lithium hydroxide, 0.8 parts of potassium hydroxide and 10 parts of dicarboxylic acid, heat React at 80°C for 15 minutes to obtain the first reaction liquid;

[0079]Among them, the base oil is a mixture of paraffin, cycloalkyl and polyalphaolefin in a weight ratio of 1:5:2; the viscosity of the base oil at 60°C is 100-300cSt, the open flash point is 250°C, and the pour point is at -10°C;

[0080] The total base number of calcium petroleum sulfonate is 350;

[0081] The specific surface area of ​​PTFE is 6m 2 / g;

[0082] The particle size range of the first solid additive is 0.8-5 microns; wherein, the particles of 0.8-1 microns account for 40% o...

Embodiment 3

[0086] Add 5 parts of lauryl hydroxystearic acid, 7 parts of petroleum calcium sulfonate, 4 parts of rosin, 12 parts of vegetable oil, (NH 4 ) x MoS 2 Add 9 parts, 5 parts of the first solid additive and 4 parts of the second solid additive to 92 parts of base oil, ultrasonically disperse, then add 0.95 parts of lithium hydroxide, 1.4 parts of potassium hydroxide and 15 parts of dicarboxylic acid, heat to 70 ℃ for 12 minutes to obtain the first reaction solution;

[0087] Among them, the base oil is a mixture of paraffin, cycloalkyl and polyalphaolefin in a weight ratio of 1:4:3; the viscosity of the base oil at 60°C is 200cSt, the open flash point is 240°C, and the pour point is -20 ℃;

[0088] The total base number of calcium petroleum sulfonate is 330;

[0089] The specific surface area of ​​PTFE is 4m 2 / g;

[0090] The particle size range of the first solid additive is 0.8-5 microns; wherein, the particles of 0.8-1 microns account for 30% of the total weight of the...

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Abstract

The present invention relates to a lubricating grease, which comprises base oil, 12-hydroxystearic acid, lithium hydroxide, potassium hydroxide, petroleum calcium sulfonate, rosin, vegetable oil, (NH4)xMoS2, a first solid additive, a second solid additive, a first composite modifier comprising trioctylmethylammonium bromide, glycerol and polytetrafluoroethylene, a second composite modifier comprising diphenylamine, 2,6-di-tert-butyl and benzotriazole, and a third composite modifier comprising sulfurized cottonseed oil T404, bis(2-mercapto-4-n-propylamino-1,3,5-triazine)thioether and bis(2-mercapto-4-cyclopentylamino-1, 3,5-triazine)thioether. The lubricating grease of the present invention has advantages of good sealing performance, strong corrosion resistance, excellent anti-wear performance, and excellent anti-extreme pressure performance.

Description

technical field [0001] The invention relates to the field of lubricating oil, in particular to a lubricating grease. Background technique [0002] In recent years, my country's lubricating grease industry has developed rapidly, and the lubricating grease industry has become an important pillar of my country's chemical industry. my country's total grease production in 2012 reached an astonishing 444,000 tons, accounting for more than 40% of the global grease production, ranking first in the world. At the same time, there are a complete range of greases, including lithium-based grease, calcium-based grease, aluminum-based grease, and bentonite grease. etc., which can basically meet the needs of all walks of life across the country. Among them, lithium-based grease has the largest demand and the widest application range, accounting for about 70% of the total output. [0003] CN100389183C (2008-5-21) discloses a high dropping point lithium-based grease and a preparation method ...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10M155/02C10M177/00C08G61/12C10N50/10C10N30/12C10N30/06C10N30/10C10N30/08
Inventor 郭水忠
Owner HANGZHOU DADI OCEAN ENVIRONMENT PROTECTION
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