Ester oil is a kind of high-end synthetic lubricating oil that is very popular in the past. This oil was developed by Germans during World War II to solve the problem of cold start of tanks and locomotives. Later, it was widely used in aviation and other fields. It was gradually used in automobile sports in the 21st century. In terms of performance, due to the flexible carbon oxygen chain, the advantages of esters lie in the general liquid range and low temperature flow energy. As far as esters are concerned, diesters have low viscosity and high viscosity index, and their pour points are generally lower than - 60 degrees.

1. Different kinds

Ester oils are natural substances containing ester groups in their molecular structures. Animal and vegetable oils have been used as lubricating materials for thousands of years to reduce labor load or make wheels run smoothly.

Lubricating oil is a liquid or semi-solid lubricant used on various types of automobiles and mechanical equipment to reduce friction and protect machinery and machined parts. It is mainly used for lubrication, auxiliary cooling, rust prevention, cleaning, sealing and buffering (Roab).

2. Different characteristics

Ester oil refers to the natural substances containing ester groups in the molecular structure. Animal and vegetable oils have been used as lubricating materials to reduce labor load or make wheels run smoothly thousands of years ago. Until the late 20th century, this kind of natural grease was still widely used in gear oil, metal cutting fluid, metal drawing lubricant and machine tool guide oil.

Lubricating oil is a technology intensive product, which is a complex mixture of hydrocarbons. Its real performance is the comprehensive effect of complex physical or chemical changes. The basic properties of lubricating oil include general physical and chemical properties, special physical and chemical properties and simulation bench tests.

3. Different components

The oxygen element in the ester oil molecule makes it have a positive electrode; The hydrogen element gives it a negative electrode. Because of the electrode action, ester molecules can be adsorbed on the metal surface to form an oil layer called adhesive molecular oil film. It is this layer of adhesion molecule oil film that makes ester oil stand out from other oils that form oil film due to viscosity.

Lubricating oil generally consists of base oil and additives. Base oil is the main component of lubricating oil, which determines the basic properties of lubricating oil. Additives can compensate and improve the performance of base oil, endow some new properties, and are an important part of lubricating oil.