To meet the antirust requirements of surfaces, processes, and storage conditions, appropriate oil-soluble auxiliary additives are added
1. Defoamer (Defoamer)
For equipment and machinery that use anti-rust oil – when operating, the air layer in contact with the oil moves along and gets caught in the oil, forming small air bubbles that are difficult to disappear.
The defoamer can quickly enter the interface between the bubble and the oil. They have low surface tension, are chemically inert, thermally stable, and are not completely soluble in water. The defoamer molecules destroy the foam and release entrained air. Methyl silicone oil is a commonly used defoamer when operating parts of metal surfaces in contact with each other.
2. Auxiliary solvent (Cosolvent)
As a solvent that can increase the solubility of some additives – these are poorly soluble in the antirust oil and make the additive stable in the oil system. Commonly used diluents are dibutyl phthalate, dioctyl phthalate, ethanol, and butanol.
3. Antioxidants
During storage and use, anti-rust oils often generate free radicals in the chain reaction under the influence of light, heat and metals, causing the oil to precipitate or gel and change. For this reason, it is often necessary to prevent or slow down. Commonly used antioxidant additives in antirust oils are phenols and amines.
If you choose oils that are mixed from poor quality base oils with high impurity content and do not contain anti-rust additives, they will not only not protect the material but also accelerate the rusting process, which is harmful to the environment. environment and human health.
