What are the ingredients of the defoamer, the role and use of the defoamer

1) Active ingredient effect: bubble breaking, defoaming, reducing surface tension: representative:

Silicone oil, polyether, higher alcohol, mineral oil, vegetable oil, etc. [1] (2) Emulsifier effect: disperse the active ingredient into small particles, which is easy to disperse in water, and better play the role of defoaming and foam inhibition.

Representative materials: nonylphenol ethoxylate, soap salt, OP series, etc., Tween series, Span series, etc. (3) Carrier role:

It helps the combination of the carrier and the foaming system, and is easy to disperse into the foaming system, combining the two, which has low surface tension, helps to inhibit foaming, and can reduce costs. Representatives: solvents other than water, such as aliphatic hydrocarbons, aromatic hydrocarbons, oxygenated solvents, etc. (4) Emulsifying additives

Makes the emulsification effect better. Representative: *Dispersant:

hydrophobic silica, etc.; * Tackifier: CMC, polyethylene ether, etc.

The composition of defoamer mainly includes active ingredients, emulsifiers, carriers and emulsifying additives, of which the active ingredient is the most important core part, which plays the role of breaking foam and reducing surface tension; The emulsifier is to disperse the active ingredient into small particles so that it can be better dispersed into oil or water for a better defoaming effect; The carrier accounts for a large proportion of the defoamer, and its surface tension is not high, which mainly plays the role of a support medium, which is beneficial to the foam inhibition and defoaming effect, and can reduce the cost; Emulsifying aids are used to make the emulsification effect better.

Hello, defoamer is a general term, it has defoamers suitable for different industries, because the foaming system is different, the composition of the substance will be different. There are non-silicone, silicone, polyether, and so on.

Defoamers are generally surfactants, but not all surfactants can be used as defoamers, and some surfactants are used as foaming agents. An important feature of the defoamer is that it cannot be miscible with the solvent to be defoamed, otherwise if it is dissolved in the solvent, the surface tension will be reduced, and it will foam.

A defoamer is a chemical used to eliminate air bubbles in liquids. Its function is to reduce the generation of foam, make the production process smoother, and improve product quality and production efficiency. Here are some of the roles and uses of defoamers:

Industrial production processes: Defoamers can be used in various industrial production processes, such as dairy products, fruit juices, brewing, chemicals, pharmaceuticals, etc. They can reduce the generation of foam, prevent foam accumulation, and improve the quality and production efficiency of products.

Food manufacturing process: Defoamers can be used in food manufacturing processes, such as ice cream, cakes, bread, etc. They can reduce the generation of foam and maintain the stability and taste of food.

Detergent manufacturing process: Defoamers can be used in detergent manufacturing processes, such as laundry detergent, dish soap, etc. They can reduce the generation of foam and improve the effectiveness and quality of detergents.

Water treatment process: Defoamers can be used in water treatment processes, such as seawater desalination, sewage treatment, etc. They can reduce the production of foam and prevent the pollution of water quality by foam.

Chemical production process: Defoamers can be used in chemical production processes, such as synthetic ammonia, methanol, etc. They can reduce the generation of foam and improve production efficiency and product quality.

In conclusion, defoamers have a wide range of applications in many production and application fields, which can effectively eliminate foam and improve product quality and production efficiency.

DefoamerThe function and use of water, solution, suspension, etcSurface tensionSubstances that prevent the formation of foam, or reduce or eliminate the original foam.

Defoamer is an additive that eliminates foam. In the production and application process of coatings, textiles, medicine, fermentation, papermaking, water treatment and petrochemical industries, a large amount of foam will be generated, which will affect product quality and production process. Based on the suppression and elimination of foam, a specific amount of defoamer is usually added to the production process.

The composition of the defoamer mainly includes active ingredients and emulsifiers.

carriers and emulsifying additives, in which the active ingredient is the most important core part, which plays a role in breaking foam and reducing surface tension; The emulsifier is to disperse the active ingredient into small particles so that it can be better dispersed into oil or water for a better defoaming effect; The carrier accounts for a large proportion of the defoamer, and its surface tension is not high, which mainly plays the role of a support medium, which is beneficial to the foam inhibition and defoaming effect, and can reduce the cost; Emulsifying aids are used to make the emulsification effect better.

The function of defoamer mainly includes three kinds of foaming, foam inhibition and defoaming, foaming refers to the addition of liquid foaming, through the action of adsorption bubble and surface tension into the bubble film to make the base thin, can quickly destroy the bubbles, reduce the liquid level; Foam inhibition is adsorbed on the bubble together with the liquid foaming substance, which reduces the surface tension and thins the bubble film, resulting in damage; Deaeration is adsorption in the bubble in the liquid, the air in the bubble is gathered, and after the bubbles are adsorbed with each other, a large bubble is formed when the adsorption interface is damaged, which accelerates the rising speed due to the increase of buoyancy and promotes the deaeration.

The main function of the defoamer is to defoam and inhibit foam and prevent secondary foaming.

Uses: Elimination of foam in various sewage treatment processes and process production processes.

Defoamers can reduce the surface tension of water, solutions, suspensions, etc., prevent the formation of foam, or reduce or eliminate the original foam.

The main components of defoamer are the main defoamer, nuclear defoamer, auxiliary defoamer, carrier, emulsifier or developer, stabilizer or compound, etc.

1) Main defoamer: The main active ingredient, usually insoluble particulate matter, such as hydrophobic silica, aliphatic amines, paraffin, etc., is treated with silicone oil.

2) Auxiliary defoamer: It is an active ingredient that plays a regulating role, improves the surface effect of the main defoamer, and has a synergistic effect on the main defoamer. For example, fatty alcohols, fatty acid esters, etc.

3) Carrier: Water is the most convenient and economical carrier to support the main defoamer and auxiliary defoamer.

4) Emulsifier and developer: The active ingredient of the defoamer is immediately dispersed in the foaming medium to contact the surface faster, so as to improve the development efficiency of the defoamer. Common emulsifiers include organic esters and ethylene oxide products.

The main components of defoamers include mineral oils, silicones, polyethers and higher alcohols.

The main components of the defoamer include:

Nonionic surfactants: such as polyoxyvinyl alcohol, fatty alcohol polyether, etc. These ingredients prevent bubbles from forming and burst bubbles that have already formed.

Mineral oils: such as silicone oil, white oil, etc. They can effectively break the surface tension of the liquid and prevent the formation of bubbles.

Fatty acids and their salts: such as potassium stearate, sodium stearate, etc. These ingredients can form a film on the surface of the liquid, preventing bubble formation and promoting bubble bursting.

Aqueous mixtures: such as ethylene glycol, glycerol, etc. These ingredients can increase the viscosity and surface tension of the liquid, preventing the formation of air bubbles.

Nano silica: its tiny particles can effectively reduce the surface tension of the liquid and prevent the formation of bubbles.

It is important to note that the composition of a defoamer will vary depending on the use and field of application.

The composition of defoamer mainly includes active ingredients, emulsifiers, carriers and emulsifying additives, of which the active ingredient is the most important core part, which plays the role of breaking foam and reducing surface tension; The emulsifier is to disperse the active ingredient into small particles so that it can be better dispersed into oil or water for a better defoaming effect; The carrier accounts for a large proportion of the defoamer, and its surface tension is not high, which mainly plays the role of a support medium, which is beneficial to the foam inhibition and defoaming effect, and can reduce the cost; Emulsifying aids are used to make the emulsification effect better.

The composition of defoamer mainly includes active ingredients, emulsifiers, carriers and emulsifying additives, of which the active ingredient is the most important core part, which plays the role of breaking foam and reducing surface tension; The emulsifier is to disperse the active ingredient into small particles so that it can be better dispersed into oil or water for a better defoaming effect; The carrier accounts for a large proportion of the defoamer, and its surface tension is not high, which mainly plays the role of a support medium, which is beneficial to the foam inhibition and defoaming effect, and can reduce the cost; Emulsifying aids are used to make the emulsification effect better.