What are the defoamers commonly used in industry?
Defoamers are one of the commonly used additives in decorative coatings, and defoamers are not only used in the decorative coatings industry. They are also widely used in modern industry, but they are of different types. So what are the commonly used defoamers in industry?
First is fermentation defoamers. Fermentation defoamers are a kind of defoamers designed specifically for fermentation processes and are divided into: oily defoamers and composite oil defoamers. They are used for defoaming in various fermentation production processes, such as erythromycin, lincomycin, avermectin, gentamicin, penicillin, citric acid, lysine, yeast production and other fermentation defoaming processes. They are also widely used in veterinary drug processing and later extraction processes.
The components of silicone defoamers are dimethyl silicone oil and SiO2, and they are compounded in a certain proportion. This defoamer has many excellent properties. For example, industrial defoamers are insoluble in water, difficult to emulsify, have low surface tension, can interfere with the surface elasticity of the foam film, etc., and the defoaming effect is more prominent in oil-soluble solutions. Moreover, the modified composite silicone defoamer made by a specific process has better diffusivity and defoaming ability, and is widely used at home and abroad.
In addition, there are industrial defoamers: water solubility is a very important indicator for defoamers alone, not to mention defoamers for water-based coatings. For defoamers for water-based coatings, the requirements for water solubility are even more stringent. Because we should not only pay attention to the use of defoamers, but also pay attention to the melting of defoamers in industrial coatings. The results of these indicators will greatly promote the production and development of defoamers for water-based coatings.
The above is an introduction to the commonly used defoamers in industry. I hope it will be helpful to everyone. If you still need to know relevant knowledge, you can consult us and we will have professionals to answer your questions.
