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A kind of lubricating grease composition and preparation method thereof

A grease composition and solid lubricant technology, applied in the field of grease, can solve the problems of reducing the lubricating effect, failure of the angle adjuster baking paint, etc., and achieve the effects of excellent extreme pressure performance, low operating torque at low temperature, and low friction coefficient

Active Publication Date: 2016-10-05
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The grease composition uses polyalphaolefin as base oil, organically modified bentonite as thickener, antioxidant, rust inhibitor, corrosion inhibitor, extreme pressure antiwear agent and solid lubricant as additives, so that The obtained grease composition has good high and low temperature performance in a wide temperature range, and also has good extreme pressure and anti-wear performance. The loss will cause the recliner paint to fail; and during the welding process of the seat recliner, the loss of oil separation will reduce the lubrication effect

Method used

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  • A kind of lubricating grease composition and preparation method thereof

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preparation example Construction

[0026] The invention provides a kind of preparation method of lubricating grease composition, comprises the following steps:

[0027] mixing 40wt% to 50wt% of base oil, 2wt% to 10wt% of thickener and 35wt% to 40wt% of solid lubricant and performing homogenization treatment to obtain a grease composition precursor;

[0028] The grease composition precursor is mixed with 0.05wt%-0.50wt% structure stabilizer, 0.5wt%-2.0wt% metal deactivator, 2wt%-8wt% extreme pressure anti-wear agent and 0.2wt% ~2.0 wt% antioxidant was mixed to obtain a grease composition.

[0029] The present invention carries out homogenization treatment after mixing base oil, thickener and solid lubricant, and then mixes with described structural stabilizer, metal passivator, extreme pressure antiwear agent and antioxidant, and homogenization treatment makes each The components are uniformly dispersed, the solid-liquid phase is not separated, and a lubricating grease composition with a good colloidal structur...

Embodiment 1

[0062] Add 8kg of fluororesin to the base oil, the base oil includes 40kg of polyalphaolefin and 5kg of dipentaerythritol low carbonate, raise the temperature to 120°C, then add 35kg of calcium carbonate, stir for 30min, and use a colloid mill to cut the above materials circularly 2h, obtain the grease composition precursor;

[0063] Cool the grease composition precursor to 100°C, add 3kg molybdenum disulfide, 0.5kg polymethacrylate, 1.0kg N,N-disalicylidene propylenediamine, 3kg zinc dithiophosphate, 4kg molybdenum dithiophosphate and 0.5kg 2,6-di-tert-butylphenol, after stirring for 60min, take out the material from the colloid mill, grind the material twice with a three-wheel grinder, Obtain a grease composition;.

[0064] The present invention conducts a performance test on the obtained lubricating grease composition, and the test results are shown in Table 1. Table 1 shows the performance test results of the lubricating grease composition obtained in Examples 1-3 of the ...

Embodiment 2

[0066] Add 3kg of bentonite to the base oil, the base oil includes 30kg of polyalphaolefin and 20kg of hydrogenated base oil, raise the temperature to 160°C, add 40kg of melamine cyanurate, stir for 30min, and use a colloid mill to circulate and shear the above materials for 3h to obtain Grease composition precursors;

[0067] Cool the grease composition precursor to 80°C, add 0.5kg glycerin, 1.0kg N-N di-n-butylaminomethylene benzotriazole, 2kg dithiocarbamate, 3 kg of molybdenum dithiocarbamate and 0.5 kg of alkyl diphenylamine were stirred for 60 minutes, then the material was taken out from the colloid mill, and the material was ground 3 times with a three-wheel grinder to obtain a grease composition;

[0068] The present invention conducts a performance test on the obtained lubricating grease composition, and the test results are shown in Table 1. Table 1 shows the performance test results of the lubricating grease composition obtained in Examples 1-3 of the present inven...

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Abstract

The invention provides a preparation method of a lubricating grease composition, which comprises the following steps: mixing 40wt% to 50wt% of base oil, 2wt% to 10wt% of thickener and 35wt% to 40wt% of solid lubricant to carry out Homogenizing to obtain a grease composition precursor; combining the grease composition precursor with 0.05wt% to 0.50wt% of a structure stabilizer, 0.5wt% to 2.0wt% of a metal deactivator, 2wt% to 8wt% The extreme pressure antiwear agent and 0.2wt%-2.0wt% antioxidant are mixed to obtain the grease composition. In the invention, base oil, thickener and solid lubricant are homogenized, and then mixed with structural stabilizer, metal passivator, extreme pressure anti-wear agent and antioxidant, and homogenized so that each component is dispersed evenly , the solid-liquid phase does not separate, and a grease composition with a good colloidal structure is obtained, so that the steel mesh of the grease composition has little oil separation.

Description

technical field [0001] The invention relates to the technical field of lubricating grease, in particular to a lubricating grease composition and a preparation method thereof. Background technique [0002] Grease, commonly known as butter or tallow, is a stable solid or semi-solid product formed by dispersing a thickener in base oil. The types of grease are: calcium-based grease, sodium-based grease, calcium-sodium-based grease, general-purpose lithium-based grease, etc. Grease can be used on the friction part of mechanical parts to reduce the friction of the contact surface of mechanical parts, protect and seal the contact surface; it can also be used on the metal surface to form a protective layer on the metal surface to prevent the metal surface from rust and corrosion. With the development of industry, the requirements for the performance of lubricating grease in various fields are also increasing. [0003] The Chinese patent application number 201210413343.1 discloses...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M169/04C10N30/06C10N50/10
Inventor 欧阳秋康健卢现菊赵玉贞田忠利
Owner CHINA PETROLEUM & CHEM CORP
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