Defoaming agent with good water dispersibility and preparation method of defoaming agent

Abstract

The invention discloses a defoaming agent with good water dispersibility. The defoaming agent is characterized by being prepared from the following raw materials in parts by weight: 100-130 parts of polyether, 8-10 parts of dimethylformamide, 50-60 parts of paraxylene, 10-20 parts of methylbenzene, 25-35 parts of cyclopentane, 3-5 parts of hydrophobic silica, 23-34 parts of chloroplatinic acid, 10-11 parts of powdery sodium silicate, 12-13 parts of waste concrete micropowder, 10-12 parts of methyl acrylate and 70-150 parts of paraffin.

Description

technical field [0001] The invention relates to the technical field of chemical synthesis, in particular to a defoamer with good water dispersibility and a preparation method thereof. Background technique [0002] Foam is a thermodynamically unstable system and cannot be stable. The thermodynamic instability of foam is due to the fact that the total liquid surface area of ​​the system is greatly reduced after the bubble is broken, so the system energy (free energy) is greatly reduced. Defoamers, also known as defoamers or foam breakers, will produce many foams that affect production during industrial production, and defoamers need to be added. It is widely used to remove harmful foam in the production process of latex, textile sizing, food fermentation, biomedicine, paint, petrochemical, papermaking, industrial cleaning, sewage treatment and other industries. However, most of the defoaming agents produced in the existing market have the problems of slow defoaming speed and ...

AI Technical Summary

Problems solved by technology

However, the defoamers produced in the existing market mostly have the problems of slow defoaming speed and poor defoaming effect

[0003] Currently existing defoamers, such as CN201180071397 disclosed in the Chinese patent database, a kind of defoamer, etc., its technological process is more complicated, it can not defoam and suppress foam at the same time, it is not conducive to popularization and use, and research shows The mass fraction and molecular structure of active agents such as silicone resin and sodium bentonite solution have traditional Chinese medicine effects on the main application performance of the defoamer. The defoamer emulsion is compounded with active agent components such as silicone resin and sodium bentonite solution. The defoaming time, water dispersibility, and high temperature resistance have been greatly improved