Environment-friendly high temperature grease and preparation method thereof

A technology of lubricating grease and grease composition, which is applied in the field of lubricating grease, can solve the problems of not being able to maintain lubrication for a long time, equipment downtime, manpower, waste, etc., achieve good elasticity and flexibility, good biodegradability, and not easy The effect of oxidation

Active Publication Date: 2019-03-08
山东耐博润滑科技有限公司
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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 high temperature grease and preparation method thereof
  • Environment-friendly high temperature grease and preparation method thereof
  • Environment-friendly high temperature grease and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Weigh 180.16g of glucose and 1412.3g (2.5mol) of dimer acid into the reaction kettle respectively, add 2.4g of lanthanum oxide, stir and heat to 210°C, fully react for 10 hours, depressurize and drain water twice during the reaction, and reduce the pressure after the reaction is completed. Press out the water, which is a grease composition, which can be directly used as an environment-friendly high-temperature grease.

[0031] Apply the high-temperature lubricating grease prepared in this example on the guide rail of the high-temperature aluminum casting furnace (the guide rail originally used graphite / molybdenum disulfide high-temperature grease, and the guide rail has been worn for a period of time). After a period of use, the guide rail obviously runs smoothly .

Embodiment 2

[0033] Weigh 180.16g of glucose and 1129.84g (2mol) of dimer acid into the reaction kettle respectively, stir and heat to 240°C, fully react for 8 hours, depressurize and drain water twice during the reaction, and drain water under depressurization after the reaction is completed, which is a A grease composition.

[0034] Weigh 950g of the grease composition and 50g of polytetrafluoroethylene, stir for 60 minutes at a temperature of 220°C, and cool naturally to obtain an environmentally friendly high-temperature grease.

Embodiment 3

[0036] Weigh 180.16g of glucose and 1694.76g (3 mol) of dimer acid into the reaction kettle respectively, add 20g of phosphoric acid (marked effective content 85%) and stir and heat to 180°C, fully react for 12 hours, decompress and drain 3 times in the middle of the reaction, and react After completion, depressurize and discharge water, which is a grease composition.

[0037] Weigh 900g of grease composition, 60g of polytetrafluoroethylene, 20g of trilauryl phosphate, 10g of zinc oxide, and 10g of antioxidant (Irganox L57), stir for 30 minutes at a temperature of 240° C., and cool naturally to obtain An environmentally friendly high temperature grease.

[0038] The environment-friendly high-temperature lubricating grease prepared above was subjected to the roller stability test according to SH / T0122:

[0039] project

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Abstract

The invention provides lubricating oil composition. The composition is prepared from glucose and dimer acid. The preparation method comprises the following steps: glucose and dimer acid are weighed inproportion, added to a reaction kettle respectively, stirred and heated to 180-240 DEG C for sufficient reaction for 8-12 hours; water is drained 3-4 times under reduced pressure during and after the reaction, and grease composition is obtained. The grease composition can be directly used as environment-friendly high temperature grease. The grease composition has relatively large molecular weight and good lubricity, extreme pressure wear resistance, antirust property and biodegradability.

Description

technical field [0001] The invention belongs to the technical field of lubricating grease, and in particular relates to an environment-friendly high-temperature 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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M159/12C10M167/00C10N30/06C10N30/12C10N30/08C10N50/10
CPCC10M159/12C10M167/00C10M2207/287C10M2215/064C10M2213/062C10M2223/04C10M2223/049C10M2201/062C10N2030/08C10N2030/06C10N2030/12C10N2050/10C10N2020/081
Inventor 张乃庆吴启东
Owner 山东耐博润滑科技有限公司
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