Machine oil additive with friction-reducing and repairing function
A repairing and additive technology, applied in the fields of additives, petroleum industry, lubricating compositions, etc., can solve the problems of lack of repairing effect, poor introduction of friction interface, failure of organic molybdenum, etc., so as to reduce air leakage and insufficient combustion of oil and gas, The effect of promoting break-in and reducing noise
Inactive Publication Date: 2004-05-26
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology
More than 20 years ago, some people abroad tried to use solid lubricants (such as MoS 2 , PTFE,) particles to replace these oil-soluble additives to obtain better lubrication effect and anti-wear repair effect, and also beneficial to environmental protection, but the results obtained are not the same, especially at lower temperatures, its lubricity Poorer than oil-soluble additives, due to large particles, lead to poor introduction at the friction interface and slow effect
[0004] In recent years, there have been patents for preparing engine oil with organic molybdenum at home and abroad. The obvious effect is to reduce friction and save energy. However, in practical applications, especially under high temperature and high load conditions, organic molybdenum should be degraded and gradually fail
At the same time it does not have a repairing effect
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1-3
[0037] Embodiment 1-3: measure according to the weight percentage of raw materials in Table 6, add the dispersant to the base oil, and heat and stir to dissolve into a homogeneous liquid; then add the mixture of graphite and sulfur-containing metal compound and mix evenly; Grinding the liquid to make it evenly dispersed; heating the dispersed mixed liquid, removing water in a vacuum, adding a synergist and then grinding and dispersing to obtain the product of the present invention.
[0038] name
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Abstract
A machine oil additive with friction-reducing and repairing function is prepared from lubricating oil, micron-or nm-class solid lubricant, disperser and synergist, and features that it can generate alayer of composite film on the surface of friction set to fill the microrecess, reduce friction and improve sealing of cylinder. It can save energy by 4-8%, elongate service life of engine by 2-3 times, save lubricating oil by 50% and improve the running characteristics of engine.
Description
technical field [0001] The invention relates to a micron or nanometer engine oil additive with friction-reducing and repairing functions and a preparation method thereof. Background technique [0002] As we all know, in order to improve the lubricating performance of lubricating oil under boundary lubrication state, reduce friction and wear, the most common method is to add various extreme pressure and anti-wear additives. [0003] At present, extreme pressure antiwear agents are mainly divided into ① organic compounds containing sulfur, phosphorus, chlorine and other active elements, such as isobutylene sulfide. ②Organometallic compounds, such as zinc dialkyl dithiophosphate, etc. Type ① and ② anti-wear and friction reducers are mostly oil-soluble compounds. Under the conditions of boundary lubrication and mixed lubrication, through heat separation and other methods, an adsorption film, a reaction film or a permeable film is formed on the surface of the metal wear scar, th...
Claims
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IPC IPC(8): C10M161/00
Inventor 薛群基金芝珊楚书凤刘维民陈建敏杨生荣
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI