Lubricating grease composition for automobile door opening stoppers and preparation method thereof

A technology of grease composition and automobile door, which is applied in the field of grease, can solve problems such as low temperature of grease, and achieve good technical effects and good low temperature performance

Inactive Publication Date: 2015-02-04
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] The purpose of the present invention is to provide a kind of automobile door opening limiter lubricating grease, select suitable base oil and additive, solve the problem of lubricating grease low temperature and material compatibility, make the lubricating grease not only meet the car door opening limiter , automobile slideways and other parts lubrication conditions can meet the requirements of material compatibility

Method used

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  • Lubricating grease composition for automobile door opening stoppers and preparation method thereof
  • Lubricating grease composition for automobile door opening stoppers and preparation method thereof
  • Lubricating grease composition for automobile door opening stoppers and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Thickener percentage: 7%, base oil content: 89%, benzotriazole content: 0%, polytetrafluoroethylene content: 0.2%, boron nitride content: 2%, nano calcium carbonate content: 1% , Melamine cyanurate content: 0.8%, diisooctyl diphenylamine content: 0.5%, tert-butyl p-cresol content: 0.5%.

[0038] Put 70 grams of 12-hydroxylithium stearate and 534 grams of base oil into the reactor, stir and heat to 210°C, add 178 grams of base oil into the reactor, continue stirring, add 178 grams of base oil, and stir. Cool down to 80°C, add 2 grams of polytetrafluoroethylene, 10 grams of boron nitride, 10 grams of nano calcium carbonate, 8 grams of melamine cyanurate, 5 grams of diisooctyl diphenylamine, 5 grams of tert-butyl p-cresol , stir. The composition is oil-pressed three times by a three-roller machine, and then packed in a finished product.

Embodiment 2

[0040] Thickener percentage content: 10%, base oil content 84%, benzotriazole content: 0%, polytetrafluoroethylene content: 1%, boron nitride content: 1.2%, nano calcium carbonate content: 0.8% , Melamine cyanurate content: 0.8%, diisooctyl diphenylamine content: 1%, tert-butyl p-cresol content: 1%.

[0041] Put 100 grams of 12-hydroxylithium stearate and 300 grams of base oil into the reactor, stir and heat to 210°C, add 340 grams of base oil into the reactor, continue stirring, add 200 grams of base oil, and stir. Cool down to 80°C, add 10 grams of polytetrafluoroethylene, 12 grams of boron nitride, 8 grams of nano-calcium carbonate, 10 grams of melamine cyanurate, 10 grams of amine antioxidant and 10 grams of amine antioxidant, stir . The composition is oil-pressed three times by a three-roller machine, and then packed in a finished product.

Embodiment 3

[0043] Thickener percentage content: 7%, base oil content 88%, polytetrafluoroethylene content: 0.5%, boron nitride content: 0.7%, nano calcium carbonate content: 0.8%, melamine cyanurate content: 0.5% , Diisooctyl diphenylamine content: 1%, tert-butyl p-cresol content: 1%, barium dinonyl naphthalene sulfonate content: 0.5%.

[0044]Put 70 grams of 12-hydroxylithium stearate and 480 grams of base oil into the reactor, stir and heat to 210°C, add 200 grams of base oil in the reactor and cool it to 180°C, continue stirring, add 200 grams of base oil and stir Cool down to 80°C, add 5 grams of polytetrafluoroethylene, 7 grams of boron nitride, 8 grams of nano-calcium carbonate, 5 grams of melamine cyanurate, 10 grams of diisooctyl diphenylamine, 10 grams of tert-butyl p-methyl Phenol and 5 g of basic barium dinonylnaphthalenesulfonate, stirred. The composition is oil-pressed three times by a three-roller machine, and then packed in a finished product.

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Abstract

The invention relates to a lubricating grease composition for automobile door opening stoppers, which comprises the following components in percentage by weight: 3-10% of thickener, 84-95% of base oil and 2-10% of additives. The 40 DEG C kinematic viscosity of the base oil is 100-670 mm<2>/s, and the condensation point is not higher than -42 DEG C. The additives comprise 0.2-8% of polytetrafluoroethylene, 0-1% of amine antioxidant, 0-1% of phenolic antioxidant, 0-1% of rust inhibitor, 0.2-5% of boron nitride, 0.2-5% of melamine cyanurate and 0.2-5% of nano calcium carbonate. The lubricating grease has the advantages of favorable low-temperature fluidity and favorable lubricating property. When the SH/T 0336 standard method is used for preparing the -30 DEG C torque, the pull-in torque value is less than 0.2 N.m, the operation torque is less than 0.06 N.m, and the compatibility volume change rate for nylon materials is zero. Thus, the lubricating grease has certain advantages when being used in automobile accessories and especially door stoppers.

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 door opening limiter and a preparation method. Background technique [0002] From 1950 to 1970, the number of cars in the world doubled every 10 years, and the number of cars in 1970 reached 250 million. Since 1970, the global car population has doubled every 15 years. In 1986, the global car population doubled again to 500 million vehicles. It is estimated that this number will reach 2.5 billion by 2050. [0003] The United States is currently the largest car-owning country with 240 million registered cars; China is next with 78 million cars; Japan has 74 million cars. [0004] At present, the global car ownership has increased from 980 million in 2009 to 1.015 billion in 2010, a year-on-year increase of 3.6%, the largest increase since 2000. Statistics show that the rapid development of China's auto mar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10M177/00C10N50/10C10N30/08C10N30/06
Inventor 刘翠苹刘振国高艳青郭振俊高思嘉李倬张会情马爱民莫林和
Owner CHINA PETROLEUM & CHEM CORP
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