Anti-wear lubricating grease and preparation method thereof

A technology of grease and grease composition, applied in the field of grease, can solve the problems of inability to maintain lubrication for a long time, equipment downtime, waste and other problems, and achieve good paste-like physical shape, excellent anti-friction performance, and good lubrication. sexual effect

Inactive Publication Date: 2020-10-30
SHANGHAI JINZHAO ENERGY SAVING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under some extreme conditions such as high temperature and high pressure, because the oil in the frame escapes too quickly, causing dryness, the lubrication effect cannot be maintained for a long time, and frequent replacement of grease is required, resulting in equipment shutdown and manpower waste

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Weigh 191.14g (1mol) of aminotriacetic acid, 156.23g (1.5mol) of neopentyl glycol, and 8g of phosphotungstic acid and place them in the reaction kettle, stir and heat to 150°C, fully react for 5 hours, and drain twice under reduced pressure during the reaction. , adding 65.16g (0.5mol) of isooctyl alcohol and raising the temperature to 180° C. After the reaction is completed for 3 hours, the water is decompressed to remove water; it is an anti-wear grease composition.

[0034] The above-mentioned antiwear grease composition can be used as a grease as it is.

Embodiment 2

[0036] Weigh 191.14 g (1 mol) of aminotriacetic acid, 145.81 g (1.4 mol) of neopentyl glycol, and 6 g of phosphotungstic acid and place them in the reaction kettle, stir and heat to 160 ° C, fully react for 4 hours, and drain the water under reduced pressure once during the reaction. , adding 158.28 g (1 mol) of isodecanol and heating up to 200° C. After the reaction is completed for 2 hours, the water is decompressed to remove water; it is an anti-wear grease composition.

[0037] Weigh 400 g of the anti-wear grease composition, 500 g of poly-2,5-furandicarboxylate neopentyl glycol, and 100 g of molybdenum disulfide at 100°C for 1.5 hours, and place them in a homogenizer for 1 hour of homogenization treatment. It is an anti-wear grease.

[0038] The preparation method of above-mentioned poly-2,5-furandicarboxylate neopentyl glycol:

[0039] 468.27 g (3 mol) of 2,5-furandicarboxylic acid, 312.45 g (3 mol) of neopentyl glycol, and 3.6 g of phosphotungstic acid were added to th...

Embodiment 3

[0043] 191.14g (1mol) of aminotriacetic acid, 104.15g (1mol) of neopentyl glycol, 6g of phosphotungstic acid were weighed and placed in the reactor, heated to 160°C with stirring, fully reacted for 4 hours, and the reaction process was decompressed and drained once, 268.69 g (0.9 mol) of isoeicosanol was added and the temperature was raised to 200° C., and after the reaction was completed for 2 hours, the water was decompressed to remove water; it was an anti-wear grease composition.

[0044] After weighing 500 g of anti-wear grease composition, 400 g of poly-2,5-furandicarboxylate neopentyl glycol, 95 g of molybdenum disulfide, 2 g of IrganoxL57 antioxidant, and 3 g of IrganoxL135 antioxidant at 100°C for 1.5 hours, Placed in the homogenizing equipment for 1 hour, it is an anti-wear grease.

[0045] The preparation method of above-mentioned poly-2,5-furandicarboxylate neopentyl glycol:

[0046] 312.18g (2mol) of 2,5-furandicarboxylic acid, 229.13g (2.2mol) of neopentyl glyco...

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PUM

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Abstract

The invention provides an anti-wear lubricating grease composition which is characterized by being prepared from nitrilotriacetic acid, neopentyl glycol, fatty alcohol and phosphotungstic acid, and the molar ratio of nitrilotriacetic acid to neopentyl glycol is 1: (1-1.5); the molar ratio of nitrilotriacetic acid to fatty alcohol is 1: (0.5-1); the weight ratio of phosphotungstic acid is 1-2% of the total weight of nitrilotriacetic acid, neopentyl glycol and fatty alcohol. The invention also provides an anti-wear lubricating grease containing the anti-wear lubricating grease composition, and the anti-wear lubricating grease is characterized by being prepared from the following components in percentage by weight: 40-50% of the anti-wear lubricating grease composition; 40-50% of poly (2, 5-furandicarboxylic acid) neopentyl glycol ester; and 5-15% of disulfide. The anti-wear lubricating grease composition prepared by the invention is an extreme pressure anti-wear additive containing P-W-N, has excellent antifriction performance, and can ensure that the paste physical form of the lubricating grease is good. The prepared anti-wear lubricating grease is applied to lubrication of bearings, guide rails and other parts, and the service life of the bearings and the guide rails is prolonged.

Description

technical field [0001] The invention belongs to the technical field of lubricating grease, and particularly relates to an anti-wear lubricating grease and a preparation method thereof. Background technique [0002] The traditional grease processing technology is: animal and vegetable oils or fatty acids are added with inorganic bases (such as sodium hydroxide, calcium hydroxide, lithium hydroxide, aluminum hydroxide, barium hydroxide, etc.) to prepare metal soaps as thickeners or organic or Inorganic thickener, which is formed by adding mineral oil or synthetic oil for processing and thickening. It is mainly stored in the framework of thickener, and stored in thickener under the action of motion pressure and temperature. The oil in the chemical agent escapes, plays a lubricating role, and exhibits paste-like physical properties under normal temperature and pressure. Under some extreme conditions such as high temperature and high pressure, the oil in the frame escapes too qu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M167/00C10M159/12C10M145/22C08G63/672C10N50/10C10N40/02C10N30/06
CPCC10M167/00C10M159/123C10M145/22C08G63/672C10M2215/04C10M2201/085C10M2209/102C10M2201/066
Inventor 张乃庆吴启东邱秋敏蒋宁
Owner SHANGHAI JINZHAO ENERGY SAVING TECH
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