Explore the principle of defoaming agent Bubbles and foams often accompany people’s lives and production. Sometimes they need to be used, such as flotation, fire extinguishing, dust removal, washing, making foam ceramics and plastics, etc.; sometimes they need to be eliminated, such as fermentation, coating, papermaking, printing and dyeing, eliminating flatulence in body organs, boiler…
Defoaming mechanism of defoaming agent Bubbles and foam often accompany people’s life and production. Sometimes we need to use them, such as flotation, fire extinguishing, dust removal, washing, making foam ceramics and plastics, etc.; sometimes we need to eliminate them, such as fermentation, coating, papermaking, printing and dyeing, eliminating flatulence in body organs, boiler water,…
Defoamers for pulping and papermaking In the pulping process, since the pulping raw materials contain natural substances such as fatty acids and resin acids, they react with the added chemicals such as caustic soda and alkali sulfide to generate foaming substances such as fatty acid soaps and resin acid soaps. In addition, the foam stabilizing…
Surface activity test defoamer At present, surfactants are generally used as bactericides and disinfectants in the aquatic industry. Their bactericidal and disinfecting effects are attributed to their strong interaction with bacterial biofilm proteins, which denatures or loses their functions. These disinfectants have relatively large solubility in water, such as cationic surfactants: quaternary ammonium salts are…
Defoaming and printing effects At present, the most popular dyeing technology in the world is paint printing. Due to the characteristics of this process, the defoamer must have excellent defoaming and anti-foaming effects. The leveling of the printing paste has an impact on the flatness of the surface. If we want to get a good…
Output of mineral defoamers At present, most domestic water-based paint manufacturers use mineral oil defoamers, and their annual consumption is about 5,000 tons. Most of the products are imported and are very expensive. In order to achieve high-quality localization of mineral oil defoamers and ultimately replace foreign imported products, the author uses homemade additives to…
Defoaming agent classification introduction Different reference books often have different methods for classifying defoamers. Generally speaking, they can be divided into water-based and solvent-based; or silicon-containing and non-silicone-containing. There are four main categories that are more common in the market. 1. Low-level alcohols and esters including isopropyl alcohol, butanol, tributyl phosphate, etc. have gradually faded…
Necessity of using defoaming agent During production, for example, beer, alcohol, and pharmaceutical antibiotics, the overflow of foam will cause the loss of raw materials. Therefore, defoaming agents must be used to prevent the occurrence of bubbles. Foam is very harmful. For example, when making beer, if the foam exists for a long time, it…
