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Biodegradable lubricating oil and preparation method thereof

A technology of biodegradation and lubricating oil, which is applied in the direction of lubricating compositions, etc., can solve the problems of poor stability and high cost of biodegradable lubricating oil, and achieve reduced reaction steps, good hydrolytic stability, excellent thermal stability and oxidation stability Effect

Active Publication Date: 2013-02-06
RESEARCH INSTITUTE OF TSINGHUA UNIVERSITY IN SHENZHEN +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the purpose of the present invention is to provide a biodegradable lubricating oil, which solves the technical problems of high cost and poor stability of biodegradable lubricating oil in the prior art; and its preparation method

Method used

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  • Biodegradable lubricating oil and preparation method thereof
  • Biodegradable lubricating oil and preparation method thereof

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preparation example Construction

[0036] The present invention further provides the preparation method of above-mentioned biodegradable lubricating oil, comprises the steps:

[0037] Step S01, preparing hindered polyols:

[0038] Adding polyols and long-chain fatty acids with a mass ratio of 0.5:1-2 to an organic solvent, reacting with biological enzymes and at a temperature of 30-90°C for 12-36 hours to obtain hindered polyol esters;

[0039] Step S02, surface-treating the inorganic nanoparticles:

[0040] Mix and stir the inorganic nanoparticles and the surface treatment agent for surface treatment;

[0041] Step S03, mixing:

[0042] The hindered polyol ester, surface-treated inorganic nanoparticles, and diluent are mixed according to the following weight ratio to obtain biodegradable lubricating oil:

[0043] Hindered polyol ester 89%-95%

[0044] Inorganic nanoparticles after surface treatment 1%-10%

[0045] Thinner 1%-10%

[0046] The biological enzyme is selected from one of CCL (A) and CCL (B), ...

Embodiment 1 3

[0061] In this example, the hindered polyol ester is prepared by bio-enzyme-catalyzed esterification, and the components and weight percentages of the biodegradable lubricating oil are as follows:

[0062] Pentaerythritol ester: 90%~95%;

[0063] Nano tungsten sulfide (WS 2 ): 1%~5%;

[0064] Thinner: 1%~5%;

[0065] The diluent includes at least: polyester, polyether, etc.

[0066] The preparation process is as follows: first, oleic acid, pentaerythritol, and Novo-435 were added to toluene respectively, and reacted at 70-90 degrees Celsius for 24-36 hours. After the reaction, Novo-435 was filtered, and then vacuum distillation was collected to collect 0.01 atmospheric pressure , Components at 160 degrees Celsius. Its specific operation process is as follows:

[0067] 1. Weigh 11.58g, 1.36g of pentaerythritol, and 0.3g of Novo-4350.3g in 10ml of toluene, react at 90°C for 24h, then filter, then distill under reduced pressure, and collect the components at 0.01 atmospheric...

Embodiment 4 6

[0071] In this example, the hindered polyol ester is prepared by bio-enzyme-catalyzed esterification, and the components and weight percentages of the biodegradable lubricating oil are as follows:

[0072] Pentaerythritol stearate: 90%~95%;

[0073] Nano calcium carbonate (CaCO 3 ): 1%~5%;

[0074] Thinner: 1%~5%;

[0075] The diluent includes at least: polyester, polyether, etc.

[0076] The preparation process is as follows: first, oleic acid, pentaerythritol, and Novo-435 were added to toluene respectively, and reacted at 70-90 degrees Celsius for 24-36 hours. After the reaction, Novo-435 was filtered, and then vacuum distillation was collected to collect 0.01 atmospheric pressure , Components at 160 degrees Celsius. Its specific operation process is as follows:

[0077] Weigh 11.66g of stearic acid, 1.36g of pentaerythritol, and 0.31g of Novo-4355 into 10ml of toluene, react at 90°C for 24h, then filter, then distill under reduced pressure, and collect the components ...

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Abstract

The invention is suitable for the field of new materials, and provides a type of biodegradable lubricating oil and a preparation method thereof. The biodegradable lubricating oil comprises hindered polyol ester, inorganic nanoparticles and diluents, wherein the hindered polyol ester is prepared by mainly using a bio-enzyme catalysis method. The lubricating oil, prepared according to the preparation method provided by the invention, has the characteristics of excellent heat stability and oxidization stability, good hydrolytic stability, low temperature fluidity, viscosity-temperature property, lubrication property and biodegradability, and can be applied to the fields of aviation, metal processing, textile and tanning.

Description

technical field [0001] The invention belongs to the field of new materials, in particular to a biodegradable lubricating oil and a preparation method thereof. Background technique [0002] Lubricants are widely used in industrial and agricultural production. In recent years, the total output of lubricating oil in the world has been maintained at 40 million tons. As a major lubricating oil producer, China's production capacity has reached 4.5 million tons by 2001. However, due to the penetration, leakage, spillage and improper handling of lubricating oil during use, it will cause environmental pollution. Most of the components are not biodegradable, and have certain ecotoxicity, polluting the environment. According to statistics, 5 to 10 million tons of petroleum-based chemicals enter the biosphere every year in the world. They seriously pollute land, rivers and lakes, and endanger the ecological environment and ecological balance. [0003] In recent years, with the conti...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10M177/00
Inventor 李冬霜杨发达黄昌寿符冬菊吴微微檀满林袁凯杰陈建军岳风树杨建
Owner RESEARCH INSTITUTE OF TSINGHUA UNIVERSITY IN SHENZHEN
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