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Lubricating oil composition and preparation method thereof

A lubricating oil composition and lubricating oil technology, applied in the direction of lubricating compositions, petroleum industry, additives, etc., can solve the problems of additive function loss, incompatible lubricating oil, desorption of surfactants, etc., to reduce wear resistance, reduce The effect of friction

Active Publication Date: 2012-07-04
IND TECH RES INST
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  • Abstract
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Problems solved by technology

[0005] To sum up, although nano-diamonds have good properties, they are not compatible with lubricating oil and cause agglomeration. Although surfactants can be used to improve their compatibility, the lubricating oil will cause surfactants to form due to high temperature under long-term mechanical operation. Desorption, and finally still cause nano-diamond agglomeration, its effect and durability are still not effective and satisfactory
In addition, adding too much surfactant may even interact with other lubricating additives such as detergents, corrosion and rust agents, antioxidants, etc., resulting in the loss or reduction of the functions of other additives

Method used

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  • Lubricating oil composition and preparation method thereof
  • Lubricating oil composition and preparation method thereof
  • Lubricating oil composition and preparation method thereof

Examples

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preparation example Construction

[0028] The preparation method of the organic / inorganic nanocomposite particles includes the following steps: firstly, mixing a nanodiamond particle (for example, ultra-dispersed nanodiamond) with a reactive monomer to obtain a mixture, wherein the reactive monomer will be synthesized in a subsequent polymerization process Forming polymer chains grafted on the nano-diamond particles, for example: methyl methacrylate, glycidyl methacrylate, styrene, or a mixture thereof. The above mixture may further include a solvent, which may be a general polar solvent such as ethanol or acetone, or a non-polar solvent such as toluene, depending on the polarity of the grafted monomer. Then, the solution is subjected to a wet ball milling disaggregation process, and a free radical initiator is added during the ball milling process to perform a polymerization reaction on the reactive monomer. In other words, the feature of the present invention is to deagglomerate nano-diamond particles (such a...

Embodiment 1

[0034] Mix 400 grams of zirconia balls (particle size about 50 μm) and 10 grams of ultra-dispersed nano-diamonds (the product number is UDD, purchased from ABBA group of Bohan Enterprise Co., Ltd., prepared in a closed explosion method and pickling to remove impurities. ), and add 80g of methyl methacrylate monomer, and the resulting mixture is placed in a ball mill cavity groove. The temperature of the external circulating water in the ball mill chamber is set at 80°C, and the ball mill speed is set at 2400 revolutions per minute. Finally, 10 grams of free radical initiator benzoyl peroxide (benzoyl peroxide) was dissolved in 10 milliliters of toluene, and injected into the cavity at a flow rate of about 5 milliliters per hour during the ball milling process. The agglomerated nano-diamonds are dispersed by ball milling, and at the same time, the free radicals of the monomer polymerization reaction produced by benzene peroxide are added on the surface of the nano-diamonds, so ...

Embodiment 2

[0037] Examples 2 and 3 were carried out in the same manner as in Example 1, but glycidyl methacrylate and styrene-substituted methyl methacrylate were used as reactive monomers. Please refer to Figure 4 , which is the infrared absorption spectrum of the nano-diamond-grafted polyglycidyl methacrylate (UDD-PGMA) obtained in Example 2 and the nano-diamond-grafted polystyrene (UDD-PS) obtained in Example 3. and Figure 6 The nano-diamond grafted polyglycidyl methacrylate (UDD-PGMA) obtained in Example 2 was analyzed by particle size, and the result showed that the average particle size (d50) was about 10 nm. and Figure 7 The nano-diamond-bonded polystyrene (UDD-PS) obtained in Example 3 was analyzed by particle size, and the result showed that the average particle size (d50) was about 100 nm.

[0038] Preparation and Property Measurement of Lubricating Oil Composition

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Abstract

The invention provides a nano lubricating oil composition and a preparation method thereof. The nano lubricating oil composition basically comprises the following components: base lubricating oil and organic / inorganic nano composite particles uniformly dispersed in the base lubricating oil. The lubricating oil composition is used on internal-combustion engines or dynamic mechanical sliding components of automobiles to reduce friction force, oil temperature and mechanical wear loss rate considerably.

Description

technical field [0001] The invention relates to a nano lubricating oil composition and a preparation method thereof, in particular to a nano lubricating oil composition without adding a dispersant or a surfactant and a preparation method thereof. Background technique [0002] Environmental pollution is the most concerned global issue in recent years, especially the greenhouse effect caused by carbon dioxide emissions and ozone destruction is the culprit of global warming. Increasing mechanical power efficiency not only saves costs but also reduces energy usage and indirectly reduces carbon dioxide emissions. Reducing friction in mechanical engines is the main way to increase energy efficiency, and the use of lubricating oil is a necessary method to reduce friction and increase efficiency. The characteristics of lubricating oil also affect the efficiency of the entire internal combustion engine or mechanical components. In addition to proper improvement of lubricating oil pr...

Claims

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Application Information

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IPC IPC(8): C10M125/02C10M177/00C10N40/25
Inventor 辛玉麟王美华张智光苏庭瑶
Owner IND TECH RES INST
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