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Lubricating grease material used for automobiles and preparation method thereof

A grease and automobile technology, applied in the field of grease, can solve the problem of poor comprehensive performance of calcium-based polyurea grease, and achieve the effects of strong anti-wear extreme pressure, good stability and good high temperature performance

Inactive Publication Date: 2015-02-04
WUXI FEITIAN GREASE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the hardening problem existing in the complex calcium-based grease, those skilled in the art try to introduce polyurea grease into the complex calcium-based grease. However, the comprehensive performance of the calcium-based polyurea grease obtained is poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) Weigh 85kg of polyalphaolefin, 8kg of glass microspheres and 1kg of oxidized petroleum grease calcium soap, add them to the reaction kettle, heat to 120°C, keep constant temperature, stir at a stirring rate of 300 rpm for 1 hour, and stop heating;

[0026] (2) Add 0.8kg of 2,6-di-tert-butyl-p-cresol and 3kg of sodium dodecylsulfonate to the product of step 1, stir and cool down to 60°C, add 0.5kg of ethylenediamine and N,N- Propylenediamine disalicylate 0.5kg is poured into a grease kneader, and kneaded until uniform, to obtain a grease material for automobiles.

[0027] The performance test results of the prepared grease materials for automobiles are shown in Table 1.

Embodiment 2

[0029] (1) Weigh 60kg of polyalphaolefin, 8kg of glass microspheres and 3kg of oxidized petroleum grease calcium soap, add to the reaction kettle, heat to 130°C, keep constant temperature, stir at 400 rpm for 1 hour, and stop heating;

[0030] (2) Add 1kg of 2,6-di-tert-butyl-p-cresol and 0.5kg of sodium dodecylsulfonate to the product of step 1, stir and cool down to 60°C, add 2kg of ethylenediamine and N,N-di Propylenediamine subsalicylate 1kg is poured into a grease kneader and kneaded until uniform to obtain a grease material for automobiles.

[0031] The performance test results of the prepared grease materials for automobiles are shown in Table 1.

Embodiment 3

[0033] (1) Weigh 75kg of polyalphaolefin, 13kg of glass microspheres and 2kg of dodecyl succinate amine, add to the reaction kettle, heat to 140°C, keep constant temperature, stir at 350 rpm for 1 hour, then stop heating ;

[0034] (2) Add 0.9kg of 2,6-di-tert-butyl-p-cresol and 2kg of sodium dodecylsulfonate to the product of step 1, stir and cool down to 60°C, add 1kg of ethylenediamine and N,N-di Propylenediamine subsalicylate 0.5kg is poured into a grease kneader, and kneaded to be even, obtains the lubricating grease material that is used for automobile.

[0035] The performance test results of the prepared grease materials for automobiles are shown in Table 1.

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PUM

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Abstract

The invention discloses a lubricating grease material used for automobiles and a preparation method thereof, the lubricating grease material comprises the following components by weight: 60-85 parts of base oil, 5-13 parts of glass beads, 1-3 parts of an anti rust agent, 0.5-2 parts of ethylenediamine, 0.5-3 parts of sodium dodecyl sulfate, 0.5-1 part of N, N-bis salicylidene propanediamine and 0.8-1 part of an antioxidant. The invention also provides a preparation method of the lubricating grease material used for the automobiles, and the method comprises the following steps: (1) weighing the 60-85 parts of base oil, the 5-13 parts of glass beads and the 1-3 parts of anti rust agent, adding into a reactor, heating to 120 to 140 DEG C, stirring for 1 hour at the constant temperature, and stopping heating; (2) adding the 0.8-1 part of antioxidant and the 0.5-3 parts of sodium dodecyl sulfate into the product of the step 1, stirring and cooling to 60 DEG C, adding the0.5-2 parts of ethylenediamine and the 0.5-1 part of N, N-bis salicylidene propanediamine, pouring into a grease kneader, and kneading evenly to obtain the lubricating grease material used for the automobiles.

Description

technical field [0001] The invention belongs to the field of lubricating grease, in particular to a lubricating grease material for automobiles and a preparation method thereof. Background technique [0002] As a type of transportation that is often used in people's lives, automobiles not only provide convenience for people to travel, but are also undergoing a period of vigorous development. Lubricating grease materials for automobiles not only require good water resistance, low temperature and wear resistance, but also It needs to have good rubber compatibility and long life, high temperature resistance and low temperature resistance. [0003] Therefore, according to the working environment and temperature of the lubricating parts, the automotive grease is generally calcium-based grease, lithium-based grease, lithium-complex grease or polyurea grease. Among them, the complex calcium-based grease is the first high-dropping-point grease developed. It is an excellent grease w...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10M125/28C10N30/06C10N30/12C10N50/10
Inventor 张群敏许华平
Owner WUXI FEITIAN GREASE
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