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Lubricating oil composition for reducing friction comprising nanoporous particles

A kind of lubricating oil composition, nanopore technology, applied in the direction of lubricating composition, nanotechnology, nanotechnology, etc.

Active Publication Date: 2013-02-27
SK益动株式会社
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, ZDTP contains phosphate, which may adversely affect automotive catalyst systems used for emission control, and is therefore preferably not used

Method used

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  • Lubricating oil composition for reducing friction comprising nanoporous particles
  • Lubricating oil composition for reducing friction comprising nanoporous particles
  • Lubricating oil composition for reducing friction comprising nanoporous particles

Examples

Experimental program
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Effect test

Embodiment 1~56

[0035] Examples 1-56. Preparation of lubricating oil compositions comprising nanoporous particles

[0036] Lubricants were prepared with lubricant combinations A or B shown in Table 2. Nanoporous particles are prepared by converting silicon alkoxides to a gel type and drying with a supercritical fluid (eg, carbon dioxide). Next, the thus-prepared nanoporous particles were added in the amount of Table 3 based on 100 parts by weight of the lubricant, thereby preparing lubricating oil compositions of Examples 1 to 56.

[0037] Nanoporous silica was representatively prepared as follows. First 50ml TEOS (tetraethyl orthosilicate) was mixed with 40ml ethanol, followed by the addition of 35ml ethanol, 70ml water, 0.275ml 30% ammonia solution and 0.2ml 0.5M ammonium fluoride. Here, ammonia and ammonium fluoride are used as catalysts. The resulting solution was mixed thoroughly with gentle agitation to induce gelation, thereby forming an alkoxide gel. Gelation was carried out for...

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Abstract

The present invention provides a lubricating oil composition for reducing a friction coefficient adjacent to the surface of being subjected to lubrication. In particular, the present invention provides nanoporous particles capable of being dispersed in a lubricating oil composition comprising base oil having a lubricant viscosity. Since the nanoporous particles having nano-sized, oil soluble pores according to the present invention reduces a friction coefficient, and in the long term, gradually releases an effective ingredient, the lubricating oil composition comprising the same of the present invention can act as a reducing agent for reducing friction for a long period of time, and thereby, exhibit excellent lubricant effects.

Description

technical field [0001] The present invention relates to lubricating oil compositions comprising nanoporous particles that reduce friction and thereby increase energy efficiency or fuel efficiency. Background technique [0002] There are several types of lubricants, such as liquid lubricants, paste lubricants, and solid lubricants including liquid lubricants, among which solid lubricants have been widely used. Lubricants are used in motor vehicle engines, transmissions, bearings, industrial gears, and other machinery to reduce friction and wear and improve energy or fuel efficiency. [0003] Typically, lubricant compositions include dispersants, detergents, friction reducers, antiwear agents, antioxidants, and corrosion inhibitors, but are not limited to these agents and many other ingredients may be added. In addition, viscosity index improvers or friction reducers can be added as important ingredients in most lubrication processes. [0004] Recently, as energy sources bec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M125/00B82B3/00C10N30/06
CPCC10M2201/103C10M2201/065C10M2215/28C10N2270/00C10M2201/05C10N2230/02C10M125/26C10M2201/041C10M2207/282C10M171/06C10M125/02C10M2203/1006C10M125/30C10M2215/086C10M2201/105C10M2207/283C10M2201/085C10M2201/061C10N2220/082C10M125/00C10M2229/02C10M2209/084C10M2201/062C10N2230/06C10M125/10C10M125/04C10M2201/066C10N2250/12C10N2020/06C10N2030/02C10N2030/06C10N2050/015C10N2070/00B82B3/00
Inventor 李炯镇赵容来
Owner SK益动株式会社
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