Antioxidant for hydraulic cylinder and preparation and application thereof

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...

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