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Bentonite grease composition and preparation method thereof

A technology of bentonite grease and composition, applied in the field of grease, can solve the problem that the low temperature performance needs to be further improved, and achieve the effect of good low temperature performance, favorable application, small starting torque and running torque

Active Publication Date: 2013-12-25
东莞太平洋博高润滑油有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Generally speaking, bentonite grease can be used normally in the temperature range of -20 ° C ~ 150 ° C, but its low temperature performance still needs to be further improved

Method used

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  • Bentonite grease composition and preparation method thereof
  • Bentonite grease composition and preparation method thereof
  • Bentonite grease composition and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0041] The present invention also provides a method for preparing the aforementioned bentonite grease composition, which includes the following steps:

[0042] a. Mix the additives with 1 / 2 mass of lubricating oil base oil, and obtain the first mixture after stirring;

[0043] b. Mix the organically modified bentonite, the structure improver, the first mixture with the remaining 1 / 2 mass of the lubricating base oil, and obtain a second mixture after stirring;

[0044] c. Grinding and vacuuming the second mixture to obtain a bentonite grease composition.

[0045] According to the above-mentioned mass percentage, the present invention first weighs 1 / 2 mass of lubricating oil base oil, adds additives, and stirs to obtain the first mixture. Wherein, the stirring is preferably performed using a star-shaped high-speed dispersing mixer; the stirring speed is preferably 1000rpm~4000rpm, more preferably 2000rpm~3000rpm; the stirring time is preferably 10min~50min, more preferably 20min~40min ...

Embodiment 1

[0062] Mix 40.75kg of lubricating base oil, 0.5kg of octyldiphenylamine, 2kg of calcium sulfonate rust inhibitor T104, 1kg of metal deactivator T551, and 2kg of calcium phosphate. Stir at a stirring speed of 2300rpm. After 10 minutes, the first mixture;

[0063] Reduce the stirring speed to 500rpm, slowly add 8kg of organically modified bentonite, and then stir at 2400rpm. After 20min, reduce the stirring speed to 300rpm, slowly add 5kg of 95% ethanol, and stir at 2500rpm for 25min Then reduce the stirring speed to 300 rpm, add 40.75 kg of lubricating base oil, stir at a stirring speed of 2400 rpm, and obtain the second mixture after 10 minutes;

[0064] Pass the second mixture through a three-roll mill, repeatedly grind it three times, and vacuumize it with a vacuum pump for 5 minutes to obtain the product bentonite grease composition.

[0065] The performance test of the obtained bentonite grease composition was carried out according to the method described above, and the test res...

Embodiment 2

[0071] Mix 41.5kg of lubricating oil base oil, 0.5kg of octyldiphenylamine, 1kg of calcium sulfonate antirust agent T104, 1kg of metal deactivator T561 and 3kg of dialkyl antimony. Stir at a stirring speed of 2300rpm, and get it after 10min First mixture

[0072] Reduce the stirring speed to 500rpm, slowly add 8kg of organically modified bentonite, then stir at 2400rpm. After 20min, reduce the stirring speed to 300rpm, slowly add 4.5kg of 95% ethanol, and stir at 2500rpm. After 15 minutes, reduce the stirring speed to 300 rpm, add 41.5 kg of lubricating oil base oil, and stir at a stirring speed of 2400 rpm. After 10 minutes, the second mixture is obtained;

[0073] Pass the second mixture through a three-roll mill, repeatedly grind it three times, and vacuumize it with a vacuum pump for 5 minutes to obtain the product bentonite grease composition.

[0074] The performance test of the obtained bentonite grease composition was performed according to the method described above, and th...

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Abstract

The invention provides a bentonite grease composition including by mass percent, 75%-90% of lube base oil, 1%-10% of organic modified bentonite, 1%-5% of a structure modifier, 1%-10% of an additive, wherein the lube base oil is polyester obtained by a polycondensation reaction of neopentyl glycol and sebacic acid and end blocking by isooctyl alcohol. The bentonite grease composition using the polyester as the lube base oil, due to an unique chemical structure thereof, has a good low temperature performance, and has good sensibility to the organic modified bentonite, so that the bentonite grease has a good lubricating performance, at the same time the condensation point is low, at the temperature of lower than or equal to -40 DEG C a starting torque and a running torque are smaller, the low temperature performance is good, the comprehensive performance is high, and the lube base oil facilitates lubrication of mechanical parts of water pumps, wheel hubs, bearings and the like by the bentonite grease in the harsh environment. The invention also provides a preparation method of the bentonite grease composition.

Description

Technical field [0001] The present invention relates to the technical field of grease, and in particular to a bentonite grease composition and a preparation method thereof. Background technique [0002] Grease is mainly a semi-fluid to solid lubricant prepared by thickening the grease base oil with a thickener. This thick grease-like petrochemical product can be used in the friction parts of machinery for lubrication and sealing. It can also be used on metal surfaces to fill gaps and prevent rust. With the rapid advancement of science and technology and the rapid development of modern industry, and due to the continuous consumption of world resources after entering the 21st century, countries around the world are actively pursuing the industrial strategy of "high, precision and cutting-edge". Therefore, the comprehensive performance is low or even average. Traditional greases can no longer meet the needs of modern industry, which has put forward higher requirements for the ...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10M177/00C10N50/10
Inventor 黄伟聪何镜泉肖瑞胡大樾易敏黎汉超欧博明蒋腊生
Owner 东莞太平洋博高润滑油有限公司
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