Vacuum pump oil

Abstract

The invention discloses a vacuum pump oil, which is composed of the following components by mass percentage: 0.6-3% of an antioxidant ingredient; 0.5-3% of a friction modifier; 0.01-3% of an extreme pressure antiwear agent; 0.005-1% of a metal deactivator; 0.01-0.5% of a demulsifying agent; and the balance base oil. Specifically, the base oil comprises the following components by mass percentage: 5%-30% of modified polyether; 10%-20% of saturated polyol ester; and 60-80% of poly alpha olefin. The vacuum pump oil provided by the invention not only has good compatibility, but also is an environment-friendly green product.

Description

technical field

[0001] The invention relates to the field of chemical industry, in particular to a vacuum pump oil. Background technique

[0002] Vacuum pump oil is a lubricating oil specially developed for vacuum pumps on vacuum equipment. It is divided into two types: mineral oil and synthetic oil. With the rapid development of modern industry, the original formula of highly refined mineral oil and various compound additives can no longer meet the complex and stringent requirements of customers. The traditional technology mainly shows the disadvantages of the following two aspects:

[0003] On the one hand, due to the incompatibility of the selected raw materials and additives in the existing vacuum pump oil, the quality of the oil is poor, mainly due to the interference of a small amount of water, the lubricity of the vacuum pump oil in the traditional technology decreases; The solubility of the components to low-molecular compounds is low.

[0004] On the other hand, ...