Recently, some customers have asked that: when adding lubricating oil to the machinery, due to the air retention in the oil inside the formation of bubbles, resulting in poor lubrication and many other effects. Q What kind of lubricating oil defoamer is better?



What harm do bubbles cause to lubricating oil? In the production, use, storage and transportation of lubricating oil, air into the lubricating oil is inevitable, when part of the air dissolved in the lubricating oil, there is no appearance, so it looks like there is no foam or bubble; If a part of the air is not dissolved in the lubricating oil, and this part of the air is free, it will produce bubbles and bubbles that we can see. The air enters the lubricating oil and produces bubbles, which is a serious harm to the lubricating oil, such as: ① accelerate the oxidation of the lubricating oil leading to deterioration; ② Damage the integrity of the oil film, resulting in poor lubricity; (3) Increase the compressibility of lubricating oil, such as hydraulic oil that plays a driving role, if the compressibility increases, it will cause equipment operation problems; ④ Under high pressure conditions, the bubbles are compressed to produce high temperature, so that the lubricating oil deteriorates due to high temperature; Too many bubbles will also make the lubricating oil overflow, resulting in waste; ⑥ Cause cavitation of equipment; ⑦ Reduce the coolability of lubricating oil; ⑧ Affect the stability of equipment operation.


By analyzing the cause of foaming of lubricating oil, polyether defoamer was recommended to him.
The main raw materials of polyether defoamer are propylene glycol or glycerol and propylene oxide, ethylene oxide, etc., which are prepared by polymerization under the catalysis of potassium hydroxide. It is characterized by strong bubble inhibition, fast defoaming, good compatibility, no oil bleaching and so on. Polyether defoamer, as a new powerful defoamer, not only has good defoamer performance, but also only needs a little to play a huge role, so the amount can be saved in the production process, so as to reduce the cost. In addition, when it is added to the lubricating oil, it will not affect the basic properties of the lubricating oil, and the original effect of the lubricating oil is very good.