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A kind of biodegradable environmental protection lubricating oil
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A technology of biodegradation and lubricating oil, applied in the field of lubricating oil, can solve the problems of poor oxidation stability of vegetable oil, poor low temperature performance and small application field, and achieve the effects of good biodegradability, good low temperature performance and low price
Inactive Publication Date: 2021-01-22
内蒙古汉功润滑油有限公司
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Problems solved by technology
However, vegetable oil has poor oxidation stability, low viscosity index, and poor low-temperature performance, so its versatility is poor, which has become the main obstacle restricting its development.
[0004] As an improvement, Chinese Patent Publication No. CN 102041148A discloses a synthetic gear oil for wind power generation. The method uses 95-98% dibasic acid pentaerythritol C5-C18 complex ester to synthesize base oil, and 5-2% industrial gear oil to compound Additives and an appropriate amount of anti-foaming agent are used to prepare wind power generation gear oil. The wind power generation gear oil prepared by this method can improve the service life of wind power generation gear oil, improve the compatibility between gear oil and sealing materials, be biodegradable, and be safe to use. , environmental protection features, but the viscosity is low, the application field is small
Method used
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Embodiment 1
[0025] A kind of biodegradable environment-friendly lubricating oil, comprises the raw material of following weight part:
[0026]
[0027] Wherein, the preparation method of the 2,5-furandicarboxylic acid starch ester comprises the following steps: dissolving 20 g of 2,5-furandicarboxylic acid in 180 g of tetrahydrofuran, and then adding 10 g of starch, 30 g of carbodiimide, 4-diimide Methylaminopyridine 15g, stirred in an ice-water bath for 2 hours, then refluxed and stirred at 40°C for 18 hours, then filtered, diluted with tetrahydrofuran, washed 3 times with water, washed 4 times with saturated saline, absorbed by anhydrous magnesium sulfate, filtered , and then remove the solvent by rotary evaporation at 50°C;
Embodiment 2
[0029] A kind of biodegradable environment-friendly lubricating oil, comprises the raw material of following weight part:
[0030]
[0031] Wherein, the preparation method of the 2,5-furandicarboxylic acid starch ester comprises the following steps: dissolving 20 g of 2,5-furandicarboxylic acid in 200 g of tetrahydrofuran, and then adding 11 g of starch, 30 g of carbodiimide, 4-diimide Methylaminopyridine 20g, stirred in an ice-water bath for 2.3 hours, then refluxed and stirred at 43°C for 20 hours, then filtered, diluted with dichloromethane, washed 4 times with water, washed 5 times with saturated saline, and absorbed by anhydrous magnesium sulfate , filtered, and then rotary evaporated at 53 ° C to remove the solvent;
Embodiment 3
[0033] A kind of biodegradable environment-friendly lubricating oil, comprises the raw material of following weight part:
[0034]
[0035] Wherein, the preparation method of starch 2,5-furandicarboxylate comprises the following steps: dissolving 20 g of 2,5-furandicarboxylic acid in 220 g of tetrahydrofuran, and then adding 12 g of starch, 36 g of carbodiimide, 4-diimide Methylaminopyridine 22g, stirred in an ice-water bath for 2.5 hours, then refluxed and stirred at 45°C for 22 hours, then filtered, diluted with ethyl acetate, washed 5 times with water, washed 6 times with saturated saline, and absorbed by anhydrous magnesium sulfate , filtered, and then rotary evaporated at 56 ° C to remove the solvent;
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Abstract
The invention discloses biodegradable environment-friendly lubricating oil. The biodegradable environment-friendly lubricating oil is prepared from the following raw materials in parts by weight: 30 to 40 parts of 2,5-furandicarboxylicacid starch ester, 1 to 3 parts of ethylene-vinyl acetate-carbon monoxide copolymer, 40 to 50 parts of plant oil, 1 to 3 parts of anti-wear reagent at extreme pressure, 0.1 to 0.5 part of anti-rust agent and 0.1 to 0.5 part of antioxidant. A preparation method of the 2,5-furandicarboxylicacid starch ester comprises the following steps: dissolving 2,5-furandicarboxylicacid in tetrahydrofuran; then, adding starch, carbodiimide and 4-dimethylamino pyridine; stirring in a ice-water bath for 2 to 3 hours; backflowing while stirring at the temperature of 40 to 50 DEG C for 18 to 24 hours; filtering, diluting with an organic solvent, washing with water for 3 to 5 times, washing with saturated table salt solution for 4 to 6 times, absorbing water with anhydrous magnesium sulfate, and filtering; performing rotary evaporation at the temperature of 50 to 60 DEG C to remove the solvent. The biodegradable environment-friendly lubricating oil disclosed by the invention is biodegradable, is environmentally friendly, and has the advantages of high thermal stability, high low-temperature performance, high oxidizing stability, lower viscosity index and higher universality.
Description
technical field [0001] The invention relates to the technical field of lubricating oil, in particular to a biodegradable and environment-friendly lubricating oil. Background technique [0002] Lubricating oil is widely used in aviation, automobile, mechanical processing, transportation, metallurgy, coal, construction, light industry and other industries. It can reduce friction and wear, save energy and prolong the life of machinery. However, when it is used in large quantities, it will inevitably enter the environment through various channels such as transportation, leakage, splashing, spillage or improper discharge, seriously polluting soil, land, rivers and lakes, affecting or even destroying ecology. Environment and ecological balance. Under this background, countries all over the world are researching biodegradable environmental protection lubricating oil, which can not only meet the lubrication requirements of mechanical parts, but also cause no harm to the environment...
Claims
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Application Information
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