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Environment-friendly self-repairing lubricating grease and preparation method thereof

A self-repairing and lubricating grease technology, applied in the field of lubricating grease, can solve the problems of equipment downtime, labor, waste, dryness, etc., and achieve good elasticity and flexibility, good extreme pressure and anti-wear properties, and good chemical stability.

Active Publication Date: 2019-09-20
上海源育节能环保科技有限公司
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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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  • Environment-friendly self-repairing lubricating grease and preparation method thereof
  • Environment-friendly self-repairing lubricating grease and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Step 1: Weigh 929.26g (1mol) of castor oil, 174.11g (1.5mol) of maleic acid, and 5.5g of neodymium oxide and add them into the reaction kettle together, stir and heat to 200°C, fully react for 3 hours, and discharge the water under reduced pressure;

[0035] Step 2: When the temperature is lowered to 100° C., add 1.5 g of the introduction agent lauroyl peroxide, continue to stir and fully react for 10 hours, and the self-healing grease composition is obtained. It can be directly used as environmentally friendly self-repairing grease.

[0036] Apply the environmentally friendly self-repairing grease prepared in this example on the guide rail of a multi-functional drilling and milling machine (model: ZXTM-40) (the guide rail of the equipment was originally lubricated with a certain brand of 0# grease, because the guide rail has been used for a period of time, wear and tear, The jitter is large and the noise is obvious. After cleaning the original used grease and applying ...

Embodiment 2

[0038] Step 1: Weigh 929.26g (1mol) of castor oil, 139.28g (1.2mol) of fumaric acid, and 1.5g of neodymium oxide into the reaction kettle together, stir and heat to 180°C, fully react for 4 hours, and discharge the water under reduced pressure;

[0039] Step 2: When the temperature is lowered to 120° C., add 0.7 g of introducing agent tert-butyl hydroperoxide, continue to stir and fully react for 8 hours, and the self-healing grease composition is obtained.

[0040] Weigh 500g of self-repairing grease composition, 400g of boric acid ricinoleate monoethanolamide, and 100g of polytetrafluoroethylene at a temperature of 60°C. After stirring for 30 minutes, put it into a homogenizer and homogenize for about 30 minutes. An environmentally friendly self-healing grease.

[0041] The preparation method of above-mentioned boric acid ricinoleate monoethanolamide:

[0042] Step 1: Weigh 298.46 g (1 mol) of ricinoleic acid and 61.08 g (1 mol) of monoethanolamine and add them together int...

Embodiment 3

[0045] Step 1: Weigh 929.26g (1mol) of castor oil, 116.07g of maleic acid (1mol), and 2.5g of neodymium oxide into the reaction kettle together, stir and heat to 190°C, fully react for 3.5 hours, and discharge the water under reduced pressure;

[0046] Step 2: When the temperature was lowered to 110° C., 1 g of the introducing agent perazobisisobutyronitrile was added, and the stirring was continued to fully react for 9 hours, and the self-healing grease composition was obtained.

[0047] Weigh 600g of self-repairing grease composition, 300g of boric acid ricinoleic acid ester monoethanolamide, 98g of polytetrafluoroethylene, and 2g of antioxidant (Irganox L57). Homogenizing in a quality machine for about 30 minutes is an environmentally friendly self-repairing grease.

[0048] The preparation method of above-mentioned boric acid ricinoleate monoethanolamide:

[0049] Step 1: Weigh 298.46 g (1 mol) of ricinoleic acid and 30.54 g (0.5 mol) of monoethanolamine into a blender, s...

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Abstract

The invention provides a self-repairing lubricating grease composition, which is characterized by comprising castor oil and butenedioic acid, and the molar ratio of castor oil to butenedioic acid is 1:1-1.5. The self-repairing lubricating grease composition also comprises a rare earth oxide, wherein the rare earth oxide accounts for 0.1-0.5 wt% of the components. The self-repairing lubricating grease composition has a complex cross-linked structure, relatively large molecular weight and good lubricity and extreme pressure wear resistance; wherein the rare earth oxide not only can be used as a catalyst in the reaction process, but also exists in the composition in the form of organic neodymium, can form an iron-neodymium compound with certain magnetism with metal iron in the use process, and can automatically fill and repair tiny cracks on the surface of a friction pair. The invention further discloses the environment-friendly self-repairing lubricating grease prepared from the self-repairing lubricating grease composition, boric acid ricinoleate monoethanolamide, polytetrafluoroethylene, an antioxidant and the like.

Description

technical field [0001] The invention belongs to the technical field of lubricating grease, and in particular relates to an environment-friendly self-repairing lubricating grease and a preparation method thereof. Background technique [0002] The traditional grease processing technology is: add animal and vegetable oil or fatty acid to inorganic base (such as sodium hydroxide, calcium hydroxide, lithium hydroxide, aluminum hydroxide, barium hydroxide, etc.) to prepare metal soap as thickener or use organic or Inorganic thickener, which is thickened by adding mineral oil or synthetic oil, is mainly to store mineral oil or synthetic oil in the framework of thickener, and store it in the thickener under the action of motion pressure and temperature. The oil in the chemical agent escapes to act as a lubricant, and exhibits paste-like physical properties under normal temperature and pressure. Under some extreme conditions such as high temperature and high pressure, because the oi...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10N30/06
CPCC10M169/04C10M2207/123C10M2207/402C10M2213/062C10M2227/061C10N2030/06
Inventor 谭群华陈谋顺
Owner 上海源育节能环保科技有限公司
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