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Antioxidant for hydraulic cylinder and preparation and application thereof

An antioxidant, hydraulic oil technology, used in additives, petroleum industry, lubricating compositions, etc., to achieve the effect of improving long-term high temperature antioxidant stability and excellent high temperature antioxidant stability

Active Publication Date: 2010-08-25
上海海都化学科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Commonly used oil antioxidants include free radical chain terminators, such as phenols and amine compounds; peroxide decomposers, such as sulfides, sulfur-containing phosphorus compounds, etc.; at present, these antioxidants are still difficult to meet the above requirements

Method used

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  • Antioxidant for hydraulic cylinder and preparation and application thereof
  • Antioxidant for hydraulic cylinder and preparation and application thereof
  • Antioxidant for hydraulic cylinder and preparation and application thereof

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Abstract

The invention provides an antioxidant for a hydraulic cylinder, which comprises the following components in part by weight: 4 to 10 parts of diisooctyl diphenylamine, 4 to 10 parts of phenyl-alpha-naphthylamine, 5 to 10 parts of 2,6-di-tert-butyl phenol and 6 to 15 parts of thiocarbamate. The antioxidant is prepared by researching the synergistic effect among the antioxidant, a main antioxidant and an antioxidant additive, and compounding the diisooctyl diphenylamine, the phenyl-alpha-naphthylamine, the 2,6-di-tert-butyl phenol and the thiocarbamate, achieves the complementary performance advantages of a plurality of types of antioxidants, and greatly improves the long-term high-temperature antioxidant stability of oil products.

Description

A kind of antioxidant for hydraulic oil and its preparation and application technical field The invention relates to an antioxidant for hydraulic oil and its preparation and application, belonging to the technical field of industrial lubricating oil. Background technique Hydraulic machinery has been widely used in industries such as iron and steel, electric power, coal and machinery. As a power medium, hydraulic oil is the key material of hydraulic transmission technology, and it is also one of the three important oil products with the largest consumption of industrial lubricating oil. With the continuous development of modern hydraulic technology, some hydraulic systems often work under high-pressure and high-temperature conditions (for example, the hydraulic system of a steel plant is often in contact with high-temperature bodies or even open flames, and the hydraulic system of a power plant is often in contact with high-temperature steam). The thermal stability and oxi...

Claims

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Application Information

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IPC IPC(8): C10M141/08C10M161/00C10N40/32C10N40/08C10N30/10C10N30/08
Inventor 王鹏汪宪臣姜作泰
Owner 上海海都化学科技有限公司
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