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A kind of low-odor automobile grease composition and preparation method thereof

A technology of automobile lubrication and composition, which is applied in the field of low-odor automobile grease composition and its preparation, and achieves the effects of good anti-wear and friction-reducing properties, good compatibility and good colloidal stability

Active Publication Date: 2022-07-19
武汉博达特种润滑技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem of high odor level of existing lubricating grease, the invention provides a low-odor automobile lubricating grease composition and a preparation method thereof. The purpose of tackling key problems is to greatly reduce the odor level of the composition, while meeting the requirements of anti-wear and anti-friction, high and low temperature and long service life of low-odor automotive grease; the low-odor automotive grease composition prepared by the present invention passed the VS -01.00-L-06005-A1-2018 "Specification for Odor Test of Non-metallic Materials in Vehicles" was tested. Under the test condition of 65℃×2h, the odor level was evaluated as 1.5-2.0, which was 0.5-1.0 higher than the existing technology Odor grade, which meets the requirements of grease grade ≤ 2.5 in passenger cars, and the grease also has excellent anti-wear and anti-friction properties, high and low temperature properties and long service life

Method used

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  • A kind of low-odor automobile grease composition and preparation method thereof
  • A kind of low-odor automobile grease composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036]1) Clean the used reaction kettle, three-roll mill and other preparation tools for use.

[0037] 2) 40 parts of polyalpha-olefin oil (V40=32.5mm 2 / s) and 12 parts of stearic acid (saponification value=210) were added in the reactor successively, after 5 minutes of stirring, 1.98 parts of lithium hydroxide monohydrate (lithium hydroxide content=57.1%) and 5 parts were added successively deionized water, close the lid of the kettle, open the inlet and exhaust valves, and pass nitrogen into the reactor, the nitrogen pressure is 0.12-0.20Mpa, the time lasts 10±2 minutes, completely remove the air in the kettle, and then close the inlet and exhaust. Air valve, start to heat up and increase the pressure. When the pressure of the reactor reaches 0.4MPa, start the constant temperature and constant pressure timing, the constant temperature and pressure time is 120±5 minutes, and the pressure is 0.4-0.45MPa.

[0038] 3) After the constant temperature and pressure is over, start ...

Embodiment 2

[0042] 1) Clean the used reaction kettle, three-roll mill and other preparation tools for use.

[0043] 2) 39 parts of polyalpha-olefin oil (V40=66.9mm 2 / s) and 15 parts of stearic acid (saponification value=212) were added in the reactor successively, after 5 minutes of stirring, 2.48 parts of lithium hydroxide monohydrate (lithium hydroxide content=57.0%) and 7.5 parts were added successively deionized water, close the lid of the kettle, open the inlet and exhaust valves, and pass nitrogen into the reactor, the nitrogen pressure is 0.12-0.20Mpa, the time lasts 10±2 minutes, completely remove the air in the kettle, and then close the inlet and exhaust. Air valve, start to heat up and increase the pressure. When the pressure of the reactor reaches 0.4MPa, start the constant temperature and constant pressure timing, the constant temperature and pressure time is 120±5 minutes, and the pressure is 0.4-0.45MPa.

[0044] 3) After the constant temperature and pressure is over, sta...

Embodiment 3

[0048] 1) Clean the used reaction kettle, three-roll mill and other preparation tools for use.

[0049] 2) 42 parts of polyalpha-olefin oil (V40=99.3mm 2 / s) and 7 parts of stearic acid (saponification value=209) were added in the reactor successively, after 5 minutes of stirring, 1.16 parts of lithium hydroxide monohydrate (lithium hydroxide content=56.8%) and 3 parts were added successively deionized water, close the lid of the kettle, open the inlet and exhaust valves, and pass nitrogen into the reactor, the nitrogen pressure is 0.12-0.20Mpa, the time lasts 10±2 minutes, completely remove the air in the kettle, and then close the inlet and exhaust. Air valve, start to heat up and increase the pressure. When the pressure of the reactor reaches 0.4MPa, start the constant temperature and constant pressure timing, the constant temperature and pressure time is 120±5 minutes, and the pressure is 0.4-0.45MPa.

[0050] 3) After the constant temperature and pressure is over, start ...

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Abstract

The invention discloses a low-odor automobile lubricating grease composition, which comprises the following components in parts by weight: 65-92 parts of base oil, 5-20 parts of thickener, and 3-15 parts of solid additive. The invention also discloses a preparation method of the low-odor automobile lubricating grease composition. The invention adopts a special nitrogen-filling preparation process, and is a low-odor automobile lubricating grease composition prepared by thickening poly-alpha olefin base oil with monolithic soap and adding solid lubricant, and has extremely low odor grade, and has passed VS-01.00-L-06005 ‑A1‑2018 "Specification for Odor Test of Non-metallic Materials in Vehicles", the odor level is 1.5-2.0, which is 0.5‑1 level lower than the odor of grease in the prior art. The low-odor automotive lubricating grease composition disclosed in the present invention also has excellent anti-wear and anti-friction properties, good colloidal stability, shear resistance and excellent high and low temperature performance.

Description

technical field [0001] The invention relates to the technical field of low-odor grease, in particular to a low-odor automobile grease composition and a preparation method thereof. Background technique [0002] With the continuous progress of the automobile industry, people's expectations and requirements for cars are getting higher and higher, not only to have better safety and convenient handling, but also to have more and more stringent requirements for comfort. One of the important options for people to buy a car. With the implementation of ≤Guidelines for Air Quality Evaluation in Passenger Cars ≥GB / T27630-2011 national standards, automakers have stricter requirements on the odor of automotive interior materials, and major automakers around the world have issued corresponding specifications, such as Volkswagen's VW50180≤radiation characteristics of automotive interior components≥, general GME60276≤general standard odor test ≥, Toyota's TSM0505G≤ non-metallic material od...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M169/00C10N30/06C10N30/04C10N30/08C10N30/10
CPCC10M169/00C10M2207/1265C10M2205/0206C10M2201/042C10M2201/061C10M2213/062
Inventor 曹杰王大为
Owner 武汉博达特种润滑技术有限公司
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