In the industrial production process (such as: coating production, paper industry, textile printing and dyeing industries), harmful foam is prone to appear. Foam not only affects the production schedule and reduces product quality, but may also cause other more serious negative effects. If you want to solve the problem quickly and effectively, you can defoam by adding a defoamer. The defoamer is a class of chemical additives with a small amount and a wide range of applications.
(Picture: The hazards of industrial sewage foam)
The main types of defoamers
Antifoaming agent is a kind of auxiliary agent often used in industrial production and industrial sewage treatment process. At present, there are many brands and categories of antifoaming agents on the market.
Defoamers are mainly disvided into the following categories:
Polyether defoamer
Polyether-type defoamers have better anti-foaming properties and are easy to disperse in water. Polyether defoamers can be divided into polyol type, fatty acid ester type and amine ether type according to the different initiators used in synthesis. Among them, the more widely used ones are polyol type and fatty acid ester type.
The production of polyether defoamers in my country started in 1969 and was first used in antibiotic fermentation. Such products mainly include: GP type glycerol polyether, GPE type polyoxyethylene (polyoxypropylene) ether and PPG type polypropylene glycol Wait.
Silicone defoamer
Silicone defoamer is made of silicone grease, emulsifier, water repellent, thickening agent, etc., mixed with appropriate amount of water and mechanically emulsified. It is characterized by low surface tension, high surface activity, strong defoaming power, low dosage and low cost.
Silicone defoamers are immiscible with water and most organic substances, and can defoam most bubble media. It has good thermal stability and can be used in a wide temperature range of 5C-150C. It has good chemical stability and is difficult to react with other substances. As long as it is properly configured, it can be used in acid, alkali, and salt solutions without compromising product quality;
Secondly, the organosilicon defoaming agent has the functions of suppressing and breaking bubbles for the bubble system. It is often used for defoaming in the production process of detergents, papermaking, pulp, sugar, electroplating, fertilizers, additives, and wastewater treatment.
(Picture: Application of organosilicon defoamer in sewage treatment)
High carbon alcohol defoamer
Higher alcohols are linear molecules with strong hydrophobicity and weak hydrophilicity. They defoam significantly in water systems. The advantage of high-carbon alcohol defoamer is that it can quickly penetrate into the liquid, spread quickly, and eliminate the stubborn foam caused by a variety of surfactants. It can stabilize defoaming under strong alkali and high temperature. Used in ink, paper coating, chemical industry, sewage treatment, medium and high temperature spray cleaning industry.
Polyether modified silicon defoamer
The polyether modified silicon defoamer combines the advantages of polyether defoamer and organosilicon defoamer by introducing polyether chain into the polysilane chain. The defoaming quality is stable, the dosage is small, and the cost is high. It can withstand high temperature, strong acid and alkali, and can be used in textile high temperature dyeing process, sewage treatment, cutting fluid, etc.
Defoamer-only choose the one that suits you
There are many types of defoamers. If you encounter foam problems, how should you buy them? If the defoamer is added correctly, you can see that the foam disappears like magic, if you add it incorrectly, it may not have any effect. Nanhui defoaming agent manufacturers are here to remind all the manufacturers and friends that if they encounter foam problems, try to find professional manufacturers to provide defoaming solutions. Buy a defoamer suitable for your own foaming environment.
Guangdong Nanhui defoamer manufacturer specializes in research and development and sales of defoamers. The factory has strong factory strength, sufficient inventory, and strong research and development capabilities. It provides one-to-one defoaming solutions. According to your foaming reasons and requirements for defoamers, Develop targeted defoamers with fast defoaming, strong anti-foaming properties, ideal effects and high cost performance.
(Picture: Nanhui defoamer manufacturer has sufficient inventory)
The source manufacturer of Nanhui defoamer can solve various industrial foam problems in a targeted manner. If you encounter bubble problems in related industries, you can call Nanhui Technical Specialist-Ms. Yoyo 0086 134 2860 1010.
