Method for preparing lubricating oil through graphene and nano zinc borate whisker modified vegetable oil

A technology of nano-zinc borate and modified vegetable oil, which is applied in the field of lubricating oil, can solve the problems of restricting popularization and application, lack of a large number of basic tests on the anti-friction and anti-wear effects of internal combustion engines, etc., and achieve good dispersion stability, excellent anti-wear and anti-friction effects, Good anti-friction and anti-wear properties

Inactive Publication Date: 2019-03-01
界首永恩机电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Poor, there is still a lack of a large number of basic tests on the anti-friction and ant

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0028] Example 1

[0029] A method for preparing lubricating oil using graphene-nano zinc borate whisker modified vegetable oil, which is characterized in that it comprises the following steps:

[0030] (1) Graphene modified by oleic acid and stearic acid:

[0031] Disperse 0.2 part of nano graphene ultrasonically for 20min, stir quickly in a water bath at 80-85℃, add dropwise oleic acid-stearic acid modifier, reflux for 4h, aging, rinse with mineral spirits, ultrasound, centrifugation, and filter several times After separation, dry in a 60-65°C drying oven, and grind to obtain oleic acid-stearic acid combined modified nano-graphene;

[0032] (2) Modified nano zinc borate whiskers:

[0033] Add 0.5 part of surfactant trioctyl phosphate to 25 parts of sodium tetraborate decahydrate solution, ultrasonic for 30min, add 5 parts of zinc nitrate hexahydrate solution under stirring, react at 70-75℃ for 20min, add sodium hydroxide solution for adjustment pH is 8, continue constant temperature...

Example Embodiment

[0043] Example 2

[0044] A method for preparing lubricating oil using graphene-nano zinc borate whisker modified vegetable oil, which is characterized in that it comprises the following steps:

[0045] (1) Graphene modified by oleic acid and stearic acid:

[0046] Disperse 0.3 part of nano graphene ultrasonically for 30min, stir quickly in a water bath at 80-85℃, add dropwise oleic acid-stearic acid modifier, reflux for 5h, aging, rinse with mineral spirits, ultrasound, centrifugation, and filter several times After separation, dry in a 60-65°C drying oven, and grind to obtain oleic acid-stearic acid combined modified nano-graphene;

[0047] (2) Modified nano zinc borate whiskers:

[0048] Add 1 part of surfactant trioctyl phosphate to 50 parts of sodium tetraborate decahydrate solution, ultrasonic for 40min, add 10 parts of zinc nitrate hexahydrate solution under stirring, react at 70-75℃ for 30min, add sodium hydroxide solution for adjustment pH is 8, continue constant temperature ...

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PUM

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Abstract

The invention discloses a method for preparing lubricating oil through graphene and nano zinc borate whisker modified vegetable oil. The method comprises the steps that methanol is added into the vegetable oil, stirring is conducted in a water bath, after a catalyst is added for a reaction, natural cooling is conducted, standing for layering is conducted, upper-layer vegetable oil methyl ester iscollected, washing is conducted, standing for layering is conducted for removing a water phase, an oil phase is dried, and thus vegetable oil methyl ester is obtained; the vegetable oil methyl ester is preheated in the water bath, glacial acetic acid and a catalyst are added, hydrogen peroxide is dropwise added while stirring, after a heat-preservation reaction is conducted, standing is conductedfor removing a water layer, an oil layer is washed with a hot sodium carbonate solution and then washed with saturated salt water to be neutral, decompressed rotary evaporation is conducted for removing moisture, and thus epoxidized vegetable oil methyl ester is obtained; and composite nano-powder modified by surface grafting, surface-treated nano-copper and graphene modified through combination of obtained oleic acid and stearic acid and a modified nano zinc borate whisker are added into the obtained epoxidized vegetable oil methyl ester, sufficient and uniform mixing is conducted, and thus the lubricating oil is prepared.

Description

technical field [0001] The invention belongs to the field of lubricating oil, and in particular relates to a method for preparing lubricating oil by modifying vegetable oil with graphene-nanometer zinc borate whiskers. Background technique [0002] In recent years, the application research of nanomaterials has attracted much attention, such as optical applications, electrical applications and mechanical applications, etc., and in these studies, the research work of nanomaterials as lubricating oil additives is an extremely important topic. As lubricating additives, nanomaterials can greatly improve the performance of lubricating oils, showing the incomparable superiority of traditional solid lubricating additives, and are very promising to become a new type of lubricating materials. The study also found that adding different types of nano-lubricating oil additives to lubricating oil can produce effects that cannot be matched by a single nano-additive, and have additive effec...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10M125/02C10M125/26C10M125/10C10M105/34C07D301/12C07D303/42C30B29/62C30B29/22C30B7/14C10N30/06
CPCC07D301/12C07D303/42C10M105/34C10M125/02C10M125/10C10M125/26C10M169/04C10M2201/041C10M2201/05C10M2201/062C10M2201/087C10M2207/126C10M2207/401C10N2010/04C10N2020/06C10N2030/06C30B7/14C30B29/22C30B29/62
Inventor 张海涛
Owner 界首永恩机电科技有限公司
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