DEFOAMER
A defoamer or an anti-foaming agent is a chemical additive that reduces and hinders the formation of foam in industrial process liquids. The terms anti-foam agent and defoamer are often used interchangeably. Strictly speaking, defoamers eliminate existing foam and anti-foamers prevent the formation of further foam. Commonly used agents are insoluble oils, polydimethylsiloxanes and other silicones, certain alcohols, stearates, and glycols. The additive is used to prevent the formation of foam or is added to break a foam already formed.
In industrial processes, foams pose serious problems. They cause defects in surface coatings and prevent the efficient filling of containers. A variety of chemical formulae are available to prevent the formation of foams.
Properties DEFOAMER
Generally, a defoamer is insoluble in the foaming medium and has surface-active properties. An essential feature of a defoamer product is its low viscosity and the facility to spread rapidly on foamy surfaces. It has an affinity to the air-liquid surface where it destabilizes the foam lamellas. This causes the rupture of the air bubbles and the breakdown of surface foam. Entrained air bubbles are agglomerated, and the larger bubbles rise to the surface of the bulk liquid more quickly.
Detergents
Anti-foams are added in certain types of detergents to reduce foaming which might decrease the action of the detergent. For example, dishwasher detergents have to be low foaming for the dishwasher to work properly. Defoamer is added into the recovery tank of carpet extractors to prevent too much-foaming damage to the vac motor.
Food
When used as an ingredient in food, antifoaming agents are intended to curb effusion or effervescence in preparation or serving.The agents are included in a variety of foods and in materials for food preparation; McDonald’s includes polydimethylsiloxane (a type of silicone) in its oil to mitigate hazardous splashes of oil caused by foaming in fryers, so it has been listed as an ingredient in their chicken nuggets, french fries, and other fried menu items.
Industrial use
Defoamers are used in many industrial processes and products: wood pulp, paper, paint, industrial wastewater treatment, food processing, oil drilling, machine tool industry, oils cutting tools, hydraulics, etc.
Pharmaceuticals
Antifoaming agents are also sold commercially to relieve bloating. A familiar example is the drug simethicone, which is the active ingredient in drugs such as Maalox, Mylanta, and Gas-X.
PRODUCT’s GENERAL INFORMATION
SUPPORTING BY PRESENT SAMPLE!
| Appearance | Emulsion liquid |
|---|---|
| Nature | Silicon |
| pH (1:10 solution) | 6-8 |
| Density @ 20 oC | 1.0 ± 0.005 g/cm3 |
| Solubility | Oil and water soluble |
Packing Style:
- 55 US Gallons Drums
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