Automotive wiper motor electrical contact grease composition and preparation method

A grease composition and the technology of the composition, applied in the field of grease, can solve the problems of wear resistance, low oil separation rate, low evaporation loss, poor performance, poor lubrication, etc., and achieve small evaporation loss, low oil separation rate, resistance to Arc Prominent Effect

Inactive Publication Date: 2017-12-15
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to propose a kind of electrical contact grease composition and preparation method thereof for automobile wiper motor grease in view of the problems such as poor serviceability and poor lubrication caused by the above-mentioned wiper motor lubricating grease. Excellent electrical conductivity, copper material arc resistance, outstanding water resistance, good oxidation resistance, good wear resistance, low oil separation rate, small evaporation loss, shear stability, high and low temperature performance and excellent corrosion protection effect

Method used

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  • Automotive wiper motor electrical contact grease composition and preparation method
  • Automotive wiper motor electrical contact grease composition and preparation method
  • Automotive wiper motor electrical contact grease composition and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1: each component comprises by the total weight of composition:

[0030] (1) Base oil 84.97%;

[0031] (2) Thickener 11%;

[0032] (3) Antioxidant 1%;

[0033] (4) 0.03% rust inhibitor;

[0034] (5) Anti-wear agent 1%;

[0035] (6) Conductive agent 1%;

[0036] (7) Filler 1%.

[0037] With 110 grams of 12 hydroxy fatty acid lithium soap and 356g of PAO (the freezing point is -40 ℃, the viscosity at 100 ℃ is 8mm 2 / s) Put it into the reactor and heat it up to 85°C, add 178g of PAO for dehydration; after completing the heating and dehydration, continue to heat up to 200°C, then use 178g of PAO to cool in the reactor, and the temperature after cooling is controlled at 170°C Keep the temperature for 20 minutes, add the remaining 178g of PAO, after the temperature drops to 80°C, add 10 grams of 4,4-methylene bis-2,6-di-tert-butyl p-cresol, 0.3 grams of benzotriazole, 10 grams of diphosphite n-butyl ester, 10 grams of conductive polyaniline and 10 grams of p...

Embodiment 2

[0041] Embodiment 2: each component comprises by the total weight of composition:

[0042] (1) Base oil 77.97%;

[0043] (2) Thickener 13.0%;

[0044] (3) Antioxidant 1%;

[0045] (4) 0.03% rust inhibitor;

[0046] (5) Anti-wear agent 2%;

[0047] (6) Conductive agent 3%;

[0048] (7) Filler 3%.

[0049] Mix 130 grams of lithium stearate soap and 348 grams of perfluoropolyether (the freezing point is -42°C, the viscosity at 100°C is 6mm 2 / s) Put it into the reactor and heat it up to 95°C, add 174g of perfluoropolyether for dehydration; The temperature was controlled at 190°C for 10 minutes, and the remaining 174g of perfluoropolyether was added. After the temperature dropped to 80°C, 10g of 2,6-di-tert-butyl-p-cresol, 0.3g of heptadecenyl imidazoline, and 20g of phosphoric acid were added. Tricresyl ester, 30 grams of graphite and 30 grams of melamine cyanurate salt are subjected to post-treatment processes such as grinding and degassing to obtain the electrical contac...

Embodiment 3

[0053]Embodiment 3: each component comprises by the total weight of composition:

[0054] (1) Base oil 84.47%;

[0055] (2) Thickener 9%;

[0056] (3) Antioxidant 1%;

[0057] (4) 0.03% rust inhibitor;

[0058] (5) 1.5% anti-wear agent;

[0059] (6) Conductive agent 2%;

[0060] (7) Filler 2%.

[0061] Mix 90 grams of lithium stearate soap with 364 g of PAO and perfluoropolyether mixture (the freezing point is -42 ° C, the viscosity at 100 ° C is 10mm 2 / s) Put it into the reactor and heat it up to 90°C, add 182g of PAO and perfluoropolyether mixture for dehydration; After cooling, the temperature was controlled at 180°C for 15 minutes, and the remaining 182g of PAO and perfluoropolyether mixture was added. After the temperature dropped to 80°C, 10g of 2,6-di-tert-butyl-p-cresol, 0.3g of mercaptobenzo Thiazole, 15 grams of iso-octyl diphenyl phosphite, 20 grams of iron oxide and 20 grams of melamine cyanurate salt, after grinding, degassing and other post-treatment proc...

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Abstract

The invention relates to an automotive wiper motor electrical contact grease composition and a preparation method. The grease is prepared from the following materials: 77 to 85% of base oil; 9 to 14% parts of thickener; 1% of antioxidant; 0.03% of rust inhibitor; 1 to 2% of anti-wear agent; 1 to 3 % of conductive agent; and 1 to 3% of filler. The unique hybrid thickener type of the invention enables the grease to have outstanding water resistance. The suitable base oil type and ratio give the grease excellent low temperature and viscosity-temperature properties, and can well meet -40 to 75 DEG C wide temperature use requirements of a automotive wiper motor itself; the prepared grease not only has good electrical conductivity, copper material arc resistance, outstanding water resistance and low temperature performance, but also has the characteristics of a low oil separation rate, low evaporation loss, good anti-oxidation, good shear stability, high and low temperature performance and good anti-corrosion protection effects, can better meet use requirements of the automotive wiper motor, and the use temperature range of the grease is -40 to 140 DEG C.

Description

technical field [0001] The invention belongs to the technical field of lubricating grease, and in particular relates to a lubricating grease composition for an automobile wiper motor and a preparation method. Background technique [0002] Automotive body accessories grease is mainly used for body shells, doors, doors and windows, roof windows, seats, etc. Automotive body accessories include windshield wipers, door locks, door hinges, window regulators, armrests, and more. The lubricating grease used for body accessories is basically lubricated for life, and the working conditions of various parts are quite different. The lubricating grease must be targeted to meet the use requirements. [0003] The wiper motor is an important part of the windshield wiper system of the car. With the improvement of people's requirements for the comfort and safety of the car, more and more attention is paid to the use of the wiper motor. In general, the wiper motor should have temperature res...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10N30/06C10N30/08C10N30/10C10N30/12C10N50/10C10N30/02
CPCC10M169/048C10M2201/041C10M2201/062C10M2205/0285C10M2207/026C10M2207/128C10M2213/0606C10M2213/062C10M2215/222C10M2215/223C10M2215/224C10M2217/046C10M2219/104C10M2223/041C10M2223/049C10N2030/02C10N2030/06C10N2030/08C10N2030/10C10N2030/12C10N2030/26C10N2030/68C10N2050/10C10N2020/02C10N2010/02
Inventor 贾超杰吴凤华赵伟吴宝杰
Owner CHINA PETROLEUM & CHEM CORP
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