Preparation of a magnetic extreme pressure antiwear agent and energy-saving and environment-friendly engine oil containing the magnetic extreme pressure antiwear agent

Abstract

The invention belongs to the field of engine lubricants, and relates to preparation of a magnetic extreme pressure anti-wearing additive and energy-saving environmental-friendly engine oil containing same. Preparation of the magnetic extreme pressure anti-wearing additive comprises the following steps: dissolving dodecylamine modified graphene oxide, FeCl2.6H2O and sodium acetate into ethylene glycol, uniformly stirring, transferring into a stainless steel high-pressure reaction kettle for reaction, cooling to the room temperature, separating a reaction product from a reaction solution by using a magnet, washing for multiple times with ultrapure water and absolute ethyl alcohol in sequence, and finally drying for later use. The energy-saving environmental-friendly engine oil containing the magnetic extreme pressure anti-wearing additive comprises basic oil, an anti-wearing agent, the magnetic extreme pressure anti-wearing additive, a high-temperature antioxidant, a clearing agent, a dispersing agent, a viscosity index improver, and the like. The engine oil designed from the magnetic extreme pressure anti-wearing additive is relatively good in bearing capability and extreme pressure anti-wearing property, and is relatively good in environmental-friendliness.

Description

technical field [0001] The invention belongs to the field of engine lubricants, and in particular relates to the preparation of a magnetic extreme pressure antiwear agent and energy-saving and environment-friendly engine oil containing the magnetic extreme pressure antiwear agent. Background technique [0002] Lubricating grease is one of the important supporting materials for modern transportation, modern industry and national defense industry. However, according to the survey of the United Nations Environmental Protection Organization, 50% of the air pollution in large and medium-sized cities comes from the exhaust emissions of fuel vehicles. Therefore, how to effectively control vehicle exhaust Emissions, to prevent the recurrence of the national heavy smog in early 2013, is the key to protecting the atmospheric environment on which we live. [0003] As we all know, automobile exhaust emissions contain many substances harmful to the ecological environment and human health...

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Problems solved by technology

[0004] Due to the setting of exhaust emission requirements, it directly promotes the development of engine hardware technology. The development and changes of these hardware directly put forward new requirements for lubricating oil. The use of some metal elements that are easy to generate ash, such as Zn, has been limited; the redox device requires reducing the sulfur content, because sulfur is easy to poison the redox catalyst and fail, and because the engine burns lubricating oil, the sulfur content of lubricating oil The higher it is, the more carbon deposits will be burned, and the more sulfur-containing substances will be emitted; devices such as NOx removal devices, three-way catalysis, and selective reduction catalysis are also required to reduce the content of sulfur and phosphorus, because phosphorus will affect the three-way catalytic conversion. The impact of the catalyst poisons the catalyst, thereby reducing the catalytic effect. At the same time, through the analysis of the combustion products adhering to the valve, it is found that its main component is Ca 3 (PO 4 ) 2 , it is not only the product of gasoline engine combustion, which is a component of engine lubricating oil, but these combustion products often cause abnormal combustion such as surface ignition

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