Additive for lubricant for improving the tribologic properties, a method for its production and application

A technology of lubricants and additives, applied in the directions of additives, lubricating compositions, petroleum industry, etc., can solve the problem of not ensuring real and continuous action and anti-wear, etc.

Inactive Publication Date: 2011-05-04
แลนด์เซสส์ ดอยช์แลนด์ จีเอ็มบีเอช
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

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Method used

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  • Additive for lubricant for improving the tribologic properties, a method for its production and application
  • Additive for lubricant for improving the tribologic properties, a method for its production and application
  • Additive for lubricant for improving the tribologic properties, a method for its production and application

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[0067] 90% of spherical SiO with a particle size of 100nm 2 The nanoparticles were stirred with 10% pure DITA (diisotridecyl adipate) or 10% pure rapeseed oil as base oil to give a paste. In the paste the nanoparticles have not been separated, which is evident from the fact that the paste is opaque. Once the paste has passed through the rolling mill with the narrowest roll gap, a transparent or at least translucent gel is obtained, which clearly demonstrates that the nanoparticles are completely dispersed.

[0068] These concentrates with pure DITA or rapeseed oil are then used to prepare a lubricating oil or grease from there.

[0069]As evident from Table 1, a nanoparticle concentration of 1% was achieved in these respective base oils. The anti-wear (AW) properties of the oil without additives were tested by means of multiple test runs according to DIN 51350 on a four-ball arrangement and on a reciprocating friction tester (SRV tester). The results are shown below.

[00...

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Abstract

The present invention relates to novel lubricant additives for improving the tribological properties, novel lubricants containing these additives, processes for the preparation thereof and the use thereof. Lubricant comprises ceramic nanoparticles as additives comprising aluminum oxide, aluminum nitride, silicon dioxide, titanium dioxide, zirconium oxide, yttrium oxide, tungsten oxide, tantalum pentoxide, vanadium pentoxide, niobium pentoxide, cerium dioxide, boron carbide, aluminum titanate, boron nitride, molybdenum disilicide, silicon carbide, silicon nitride, titanium carbide, titanium nitride, zirconium diboride and/or clay minerals, and thermally stable carbonates and/or sulfates. The nanoparticles represent an ellipsoid with three semi-axes a, b and c, which are not equal to each other, or equal to each other. The ratio of a and b is 1-100, a and c is 1-1000, and b and c is 1:100.

Description

technical field [0001] The present invention relates to novel lubricant additives for improving tribological properties, novel lubricants containing these additives, a process for their preparation and their use. Background technique [0002] Lubricants are natural oils, such as castor oil or rapeseed oil; mineral oils, such as naphthenic mineral oils; and / or synthetic oils, such as poly-alpha-olefin or ester oils. These serve to reduce friction, which causes noise and in particular wear of the material. In addition, the use of a lubricant also allows for heat removal. [0003] Depending on the intended use, these lubricants are treated with a wide variety of additives. [0004] With regard to lubricants, besides corrosion protection, thermal stability, viscosity index and pour point, tribological properties are also of decisive importance. These mainly include reduction of friction and wear, improvement in lubrication (including heat removal) and load carrying capacity. ...

Claims

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Application Information

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IPC IPC(8): C10M125/00C10M169/06C10N40/02C10N40/04C10N40/36
CPCC10M171/06C10M173/00C10M2201/061C10M2201/062C10M2201/08C10M2201/084C10M2201/087C10M2201/102C10M2201/1026C10M2201/103C10M2201/105C10M2203/0206C10M2203/1025C10M2205/0265C10M2205/183C10M2207/1256C10M2207/1265C10M2207/2815C10M2207/2825C10M2207/2835C10M2207/301C10M2207/401C10M2209/1033C10M2217/045C10M2217/0456C10M2229/025C10N2010/06C10N2010/08C10N2010/10C10N2010/12C10N2020/06C10N2030/06C10N2030/08C10N2050/10C10N2020/055C10N2020/077C10N2020/081C10N2050/015C10N2060/02
Inventor 托马斯·吕勒迈克尔·柯尼希托马斯·罗斯鲁克尔德特勒夫·帕兹德兹尔格奥尔格·黑林戴维·拉雷姆
Owner แลนด์เซสส์ ดอยช์แลนด์ จีเอ็มบีเอช
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