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Antioxidant composition for lithium-based lubricating grease

A lithium-based grease, antioxidant technology, used in lubricating compositions, additives, petroleum industry, etc., can solve the problems of corrosive products, shortened service life, and structural damage of grease

Active Publication Date: 2022-01-11
福建优立盛油脂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] The metal ion of fatty acid soap in the grease system is the catalyst for the oxidation reaction of the grease. Under high temperature and long-term working conditions, it will accelerate the oxidation of the grease, which will lead to the destruction of the structure of the grease, resulting in the separation of soap and oil, and the formation of corrosive products. , shortened service life

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  • Antioxidant composition for lithium-based lubricating grease
  • Antioxidant composition for lithium-based lubricating grease
  • Antioxidant composition for lithium-based lubricating grease

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[0036] In order to make the above-mentioned features and advantages of the present invention more comprehensible, specific embodiments are given below for detailed description. The methods of the present invention are conventional methods in the art unless otherwise specified.

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Abstract

The invention provides an antioxidant composition for lithium-based lubricating grease. The antioxidant composition is composed of amines or phenols and copper dimethyl dithiocarbamate; and a lithium-based lubricating grease sample added with the antioxidant composition has good antioxidant stability and long service life.

Description

technical field [0001] In particular, the present invention relates to an antioxidant composition for lithium-based lubricating grease. Background technique [0002] The metal ion of fatty acid soap in the grease system is the catalyst for the oxidation reaction of the grease. Under high temperature and long-term working conditions, it will accelerate the oxidation of the grease, which will lead to the destruction of the structure of the grease, resulting in the separation of soap and oil, and the formation of corrosive products. , the service life is shortened. The addition of antioxidants can hinder the oxidation of grease, passivate the catalytic effect of metals, and greatly prolong the service life of grease. Traditional antioxidants such as amine antioxidants, phenolic antioxidants, and zinc dialkyldithiophosphate (ZDDP) have certain thermal stability and oxidation resistance, which can prolong the life of lubricating greases. Many scholars have Researched and recomm...

Claims

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Application Information

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IPC IPC(8): C10M141/08C10N30/10
CPCC10M141/08C10M2219/068C10M2215/064C10M2215/065C10M2215/066C10M2207/023C10N2030/10C10N2010/02
Inventor 黄学宏陈仕棋吕文菁岡村征二
Owner 福建优立盛油脂有限公司
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