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A kind of vehicle lubricating oil containing modified nano-diamond and preparation method thereof

A nano-diamond and automotive lubricating oil technology, which is applied in the petroleum industry, lubricating compositions, additives, etc., can solve the problems of poisonous exhaust gas conversion device catalyst, short service life of lubricating oil, and polluting the atmospheric environment, and achieve excellent adsorption properties. Chemical reactivity, life extension, high activity effect

Active Publication Date: 2016-04-06
江苏宝捷科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this compound is hard but very brittle, it will continue to fall off and form continuously during the friction process, which not only corrodes the machine parts, but also consumes additives. The service life of both machinery and lubricating oil is very short.
The anti-wear components in traditional lubricating oils, such as zinc dialkyldithiophosphate (T202 anti-oxidant and anti-corrosion agent), contain sulfur, phosphorus, and zinc, which not only corrode silver bearings, poison the catalyst of the exhaust gas conversion device, but also pollute the atmospheric environment

Method used

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  • A kind of vehicle lubricating oil containing modified nano-diamond and preparation method thereof

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Embodiment 1

[0023] A kind of vehicle lubricating oil containing modified nano-diamond, comprising the following components in parts by weight: 20 parts of modified nano-diamond, 50 parts of high-viscosity base oil, 10 parts of molybdenum dialkyl dithiophosphate, 10 parts of polyalphaolefin, 20 parts of ethylene-propylene copolymer. The modified nano-diamond is obtained by modifying CTM1 and CTM2. High-viscosity base oils are base oils with a viscosity index above 130. The particle size of the modified nano-diamond is 2nm.

[0024] A method for preparing a vehicle lubricating oil containing modified nano-diamond, comprising the following steps: adding high-viscosity base oil, organic molybdenum mixture, high-viscosity polyolefin, modified nano-diamond and viscosity index improver according to the above-mentioned parts by weight Dissolve in the kettle, and use heat conduction oil to heat up to 150°C, so that the above raw materials are completely dissolved, and continue to stir at a const...

Embodiment 2

[0026] A kind of vehicle lubricating oil containing modified nano-diamond, comprising the following components in parts by weight: 30 parts of modified nano-diamond, 80 parts of high-viscosity base oil, 20 parts of molybdenum thiophosphate, alkyl polyphenylene 20 parts of ethylene, 30 parts of ethylene-propylene copolymer. The modified nano-diamond is obtained by modifying CTM1 and CTM2. High-viscosity base oils are base oils with a viscosity index above 130. The particle size of the modified nano-diamond is 20nm.

[0027] A method for preparing a vehicle lubricating oil containing modified nano-diamond, comprising the following steps: adding high-viscosity base oil, organic molybdenum mixture, high-viscosity polyolefin, modified nano-diamond and viscosity index improver according to the above-mentioned parts by weight Dissolve in the kettle, and heat up to 160°C with heat-conducting oil, so that the above raw materials are completely dissolved, and continue to stir at a con...

Embodiment 3

[0029] A kind of vehicle lubricating oil containing modified nano-diamond, according to parts by weight, comprising the following components: 25 parts of modified nano-diamond, 65 parts of high-viscosity base oil, 15 parts of molybdenum salt of organic acid, 7 parts of polyalpha-olefin 8 parts, 8 parts of alkyl polystyrene, 25 parts of ethylene-propylene copolymer. The modified nano-diamond is obtained by modifying CTM1 and CTM2. High-viscosity base oils are base oils with a viscosity index above 130. The particle size of the modified nano-diamond is 10nm.

[0030] A method for preparing a vehicle lubricating oil containing modified nano-diamond, comprising the following steps: adding high-viscosity base oil, organic molybdenum mixture, high-viscosity polyolefin, modified nano-diamond and viscosity index improver according to the above-mentioned parts by weight Dissolve in the kettle, and use heat conduction oil to heat up to 155°C, so that the above raw materials are comple...

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Abstract

The invention discloses vehicle-use lubricating oil containing modified nanometer diamond. The vehicle-use lubricating oil comprises, by weight, 20 parts to 30 parts of modified nanometer diamond, 50 parts to 80 parts of high viscosity base oil, 10 parts to 20 parts of organic molybdenum compounds, 10 parts to 20 parts of high viscosity polyolefin and 20 parts to 30 parts of viscosity index improver. The invention further discloses a preparing method of the vehicle-use lubricating oil. According to the vehicle-use lubricating oil, the modified nanometer diamond is large in superficial area and high in activity, surface modification can be conducted through methods of coupling, esterification, dormancy and the like, the modified nanometer diamond can suspend in the oil easily, and precipitation layering and oil-way blocking do not occur any more. Metal or metallic oxide or inorganic compounds is / are adopted for lubricating materials of the vehicle-use lubricating oil, so that the vehicle-use lubricating oil is high in evaporation temperature, oxidation temperature and heat-resistance temperature, and free of pollution.

Description

technical field [0001] The invention relates to the technical field of lubricating oil for vehicles, in particular to a lubricating oil for vehicles containing modified nano-diamonds and a preparation method thereof. Background technique [0002] At present, there are many solid lubricants with good performance, but due to their high density, they cannot be suspended in the oil, and the particle size is too coarse to get into the friction pair. The agglomeration is serious, and the oil passage is blocked after a long time, so they cannot be used in lubricating oil. The extreme pressure and antiwear agents in traditional lubricating oils are often some sulfur, phosphorus, and chloride compounds. Through boundary lubrication, instantaneous high temperature and high pressure and frictional pairs form metal compounds to improve hardness and wear resistance. Although this compound is hard but very brittle, it will continue to fall off and form continuously during the friction pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M161/00
Inventor 李勇
Owner 江苏宝捷科技股份有限公司
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