Antifoaming agents in Malaysia
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What is the usage of antifoaming agents?

In most fluid systems, foam control happens to be a challenging problem to tackle. Pure liquids do not generate foam. In an aqueous environment, contaminants such as surfactants, proteins, and small solid particles will produce a stable foam. When foam or entrained air is present, system efficiency is severely hampered. To avoid foam problems and keep the process running smoothly, many applications will use agents in antifoaming or defoamer.

Antifoaming agents in Malaysia

What Is an Antifoam?

Defoamers and antifoams have identical chemistry, with the timing of application being the main difference. Antifoams are used to prevent the formation of foam, whereas defoamers are used to lessen the amount of foam that already exists.

The majority of defoamers and antifoams happen to be inert chemicals. A liquid and a hydrophobic solid, for example, ethylene-bis-ceramide, hydrophobic silica, fatty acid, and/or fatty alcohol, are used to create them. In order to be successful, antifoam has to be soluble in the medium it happens to be defoaming. On the other hand, the antifoam cannot be so incompatible that it produces deposition issues.

The antifoam gets inside the bubble wall, which is where the air meets the lamella. The antifoam happens to enter the bubble wall, which happens to be then linked by the antifoam droplets. This use to be known as “film bridging,” as the bubble wall thins since the antifoam spreads. When the antifoam reaches the lamella, it forms a lens on the surface of the lamella and spreads. As the foam moves, the liberal spreading process decreases the thickness of the lens, causing the form to change. The lens is strained until the foam lamella ruptures and the lens breaks. The resulting film is far less flexible than the surfactant film that held the lamella in place previously. As a result of the destabilization, the lamella is more susceptible to rupture.

Advantages of Antifoaming

Fluid system functioning and other industrial processes can be severely harmed by foam. It has the following operational consequences:

  • Product density inconsistencies
  • Production-related machinery or equipment is damaged.
  • Interference with separation or coating processes, resulting in a reduction in product quality.
  • Cavitation in the pump

Due to the delay required for foam-related issues, foam can cause issues throughout the entire production workflow. Antifoams work to reduce the operational impact of foam by preventing it from becoming a problem before it becomes a problem, saving time and money. 

Antifoams are utilized in a wide range of situations.

Agribusiness and Food Processing

Because of the amount of organic material handled, pressure, mixing, chemical reactions, and other process-related issues, food, and agribusiness are prone to foam difficulties. 

The following are examples of typical applications of antifoaming agents:

  • Fermentation
  • Grain separation and treating
  • Meat and poultry treating
  • Fruit and vegetable washing and treating
  • Dairy products, brine systems, beverages, and more
  • Water Treatment

Foam control is essential for municipal and industrial water treatment systems to remain safe and efficient. During many stages of the treatment process, antifoams stop air or waterborne foam from forming. 

Antifoaming agents are utilized in a variety of applications, including:

  • Boiler water treatment
  • Aeration basins
  • Clarifiers
  • Cooling towers
  • Evaporative water treatment
  • Equalization tanks
  • Final effluent
  • Manure pits
  • Landfill leachate
  • Moving Bed Biofilm Reactors
  • Membrane Bioreactors
  • Sequencing Batch Reactors
  • Paint, Inks, Coatings, & Adhesives (PICA)

Foam is formed due to the rigorous mixing, grinding, and chemical reactions involved in the production of PICA materials. Unmanaged foam leads to increased production times, reduced operational efficiency, and physical product defects like fisheyes, craters, and pinholes. To prevent these setbacks, antifoam is used in applications including:

  • Polymer/pigment grinding
  • Shearing or spraying
  • Package filling
  • Chemical Manufacturing

Antifoaming agents in Malaysia are widely employed to regulate foam generation at all stages of the chemical manufacturing process.

Jasmine Sham