What are the functions and uses of defoamers?

The role of defoamer can be divided into three types: defoaming agent, antifoam agent and deaerator. Foam breaker refers to the addition of liquid foaming, through the action of adsorption bubble and surface tension into the bubble film to thin the base, can quickly destroy the bubbles, reduce the liquid level. Foam inhibitor is a substance that can inhibit the production of foam, which adsorbs on the bubble together with the liquid foaming substance, so that the surface tension is reduced, the bubble film is thinned, resulting in damage, and the foaming phenomenon can be prevented.

The deaerator adsorbs in the bubble in the liquid, gathers the air in the bubble, and after the bubbles adsorb each other, it is damaged at the adsorption interface and forms a large bubble, which accelerates the rising speed due to the increase of buoyancy and promotes deaeration. Defoamers generally have a variety of functions such as foam breaking, foam inhibition and deaeration. Jingqi Chemical Technology Co., Ltd. is a professional R&D and production of various defoamer manufacturers, and has provided mature defoaming solutions for more than 5,000 domestic and foreign enterprises for 15 years.

In daily life and production, foam brings people colorful, fantasy and fun, but also increases people's troubles. In life and production, many operations or processes often become serious problems due to the production of large amounts of foam. The textile industry from spinning, spinning, weaving, printing and dyeing to the finished product in the processing process, all kinds of auxiliary chemicals are used, which give textiles a variety of excellent application properties, improve the quality of textiles, improve processing effects, improve production efficiency, simplify the production process, reduce production costs.

This auxiliary chemical is commonly known as textile dyeing and finishing auxiliaries. Due to the large use of textile dyeing and finishing auxiliaries, a large amount of foam is produced in the wet processing process of textile dyeing and finishing, which makes the production operation inconvenient, the production capacity is reduced, the product quality is reduced, and the normal operation is difficult. Therefore, the textile dyeing and finishing industry should eliminate harmful foam.

The use of defoamers to eliminate harmful foam has proven to be the most effective and economical method in the textile dyeing and finishing industry. According to the raw materials used in the manufacture**, defoamers can be divided into the following three categories: 1) Products based on natural products:

There are animal and vegetable oils and fats, mineral oils and compounds, etc.; 2) Polyether type: block copolymer with polyoxyethylene polyoxypropylene, modified polyether, etc.; 3) Silicone defoamers with polysiloxane as the main raw material include: pure silicone oil, silicone oil solution, silicone paste, silicone oil emulsion, powder, and block.

According to the dosage form, the defoamer can be divided into: solution, emulsion, powder, paste, and block. Defoamers are divided into the following according to their uses:

Food, Pharmaceutical, Fermentation; papermaking, printing and dyeing auxiliaries; oil extraction, storage and transportation, refining, lubricating oil; chemical production; Metal cutting fluids, chemical cleaning, water treatment, and more. According to the focus of the performance, defoamers can be divided into: defoamers, antifoam agents and deaerators.

Silicon-based and non-silicon-based defoamers are used in different processes in the textile printing and dyeing industry, and the actual use performance has its own advantages and disadvantages. Silicon-based defoamer has the advantages of strong defoaming performance, long-lasting foam inhibition, low dosage, stable chemical properties, high temperature resistance, non-volatile and non-toxic, etc., and is an important development direction of textile dyeing and finishing auxiliaries. In the dyeing and finishing of textile fabrics, defoamer water emulsions containing polysiloxane 1% and 2o% are usually used.

The main function is to reduce and hinder the formation of foam in the industrial system. Defoamer, also known as antifoam, is a chemical additive. Commonly used defoamers are insoluble oils, dimethicone and other siloxanes, certain alcohols, stearates, and glycols.

Additives are used to prevent the formation of foam or are added to destroy the foam that has formed. In industrial processes, foam can bring great harm, reduce production capacity, waste raw materials, etc. This is where a defoamer needs to be added to eliminate the foam.

Defoamer, also known as antifoam, is a chemical additive whose main role is to reduce and hinder the formation of foam in industrial systems. Commonly used defoamers are insoluble oils, dimethicone and other siloxanes, certain alcohols, stearates, and glycols. Additives are used to prevent the formation of foam or are added to destroy the foam that has formed.

In industrial processes, foam can bring great harm, reduce production capacity, waste raw materials, etc. This is where a defoamer needs to be added to eliminate the foam. Because of its insoluble system and low surface tension, defoamer is also the main principle of defoaming and foaming.

Defoamer is a substance that prevents bubbles from forming on the surface of liquids, and its main role is to reduce the number of bubbles in the liquid and maintain the stability of the liquid. Defoamers can be used in the manufacturing process of cosmetics, industrial products, food, etc., to avoid the impact of air bubbles on quality and production efficiency.

In the production process, bubbles will be generated during the manufacturing process of some liquids, such as milk, beer, glue, etc., which will reduce the quality of the product, reduce the product retention time and make it more difficult for the process of packaging, production and storage. The role of defoamers is to reduce or eliminate these bubbles, thereby improving the quality and stability of the product.

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

The role of the defoamer is to eliminate foam and prevent secondary foaming.

The main function of the defoamer is to reduce the surface tension of the foaming surface, so as to achieve the effect of defoaming and foaming.

A defoamer is a chemical that reduces the surface tension of liquids and controls the formation and breakage of foam on the surface of liquids. Its main function is to prevent the liquid from foaming, so that the liquid remains clear and stable; At the same time, it can also prevent the formation of foam in the liquid, and accelerate the crushing and disappearance of foam on the surface of the liquid. Common applications of defoamers include various industrial fields such as food processing and production, pharmaceutical manufacturing, paint and coating, paper product production, and household daily chemical products such as household cleaners and laundry detergents.

Its role can be achieved in practical applications:

1.Adjust the viscosity and surface tension of the liquid to make it easier to handle and flow;

2.Effectively control the generation of gas foam in the liquid and reduce the bubble breaking time;

3.Maintain the transparency and good appearance of the liquid;

4.Prevent various interference factors in the liquid handling process, such as noise, dismantling and sedimentation, etc.