How to Use a Silicone Defoamer Agent

Silicone defoamer is an environmentally safe liquid used for various industrial purposes such as pulp and paper manufacturing, petroleum industry applications, daily chemicals applications, rubber latex industry production and paints coating applications.

Antifoam agents can either be added directly to a foaming system, or mixed into a paste-type antifoam agent with alumina, silica and carbon black by kneading and mixing. They can even be coated on system charge ports or meshes.

Defoaming effect

Defoaming is a widespread industrial issue. To remedy it, defoaming agents such as silicone defoamers are used – these work effectively while remaining compatible with many chemicals and temperatures, making them suitable for high temperature applications.

Defoamer can help dislodge existing foam and significantly limit future formation. Silicone defoaming agents, in contrast to other defoaming agents, are safe for use under harsh corrosive conditions and do not contaminate liquid.

Silicone defoamer utilize polydimethylsiloxane (PDMS), an extremely hydrophobic material with low surface tension. When combined with hydrophobic silica particles, they can create effective defoaming and antifoaming results.

Addition of a cellulose thickener system can help stabilize an emulsion and prevent caking on fabric or mechanical parts, reduce water use for dilution purposes and help make the emulsion cost-effective as well as making transport and storage simpler.

Safety

Silicone defoamer agent provide a safe and effective means to minimize foaming in manufacturing processes. Their use can enhance production efficiency, product quality and employee safety. Ideal products for industries including oil & gas, pulp & paper processing, chemical processing and waste water treatment.

Defoamers come in solution or emulsion form, and can be added directly to the liquid that causes foaming. Solution-type defoamers typically involve dispersing silicone oil into non-toxic water-soluble solvents like hexylene glycol and glycerol for direct use; while emulsion defoamers typically combine dimethyl silicone oil, an emulsifier and stabilizer, for use directly with aqueous systems or for defoaming paint.

When using silicone defoamers, it is vitally important to abide by their safety instructions on the label. Ingesting or coming into contact with eyes or skin must not occur and medical assistance must be sought immediately in case this does happen. Furthermore, they should be stored in a cool, dry location away from heat and direct sunlight for maximum effectiveness.

Storage

Defoamers can help manufacturers meet quality standards by reducing foam in manufacturing processes, helping ensure products meet quality standards while also avoiding product loss, equipment damage and contamination in industries like brewing, dairy production and soy product manufacture. Furthermore, silicone antifoaming agents help maintain efficiency along production lines and decrease downtime; plus their chemical stability makes them suitable for industrial environments.

Silicone defoamer should be stored in a cool and dry location to preserve their effectiveness. They should not be exposed to sunlight or high temperatures and kept away from oxidizing agents. Furthermore, sealed containers are recommended so as to prevent contact between silicone defoamers and eyes and water or eyes, but if contact does occur it must be immediately rinsed out with clean water and medical assistance should be sought immediately. emulsion type silicone antifoaming agent storage methods tend to be straightforward depending on viscosity; for optimal defoaming results use either diluting or intensifying to achieve defoaming effects desired in systems with viscosities between viscosities from systems used.

Application

Silicone antifoam agents offer superior heat stability, being effective across a wide range of temperatures. Furthermore, these agents can withstand acids and other harsh chemicals; making them suitable for use in industries including petrochemicals, paints, inks, rubber, plastics, food processing and food service operations.

Defoamer agent are typically designed to be non-toxic and environmentally-friendly, making them suitable for use both liquid and gaseous systems at low concentrations. As a result, they’re an increasingly popular choice within pulping industry as they reduce foam build-up while simultaneously improving washing results.

Water emulsion-type defoamer agent are among the most frequently used silicone defoamer. They can be added to many production processes, such as desizing, refining and bleaching; improve filtration washing extraction distillation evaporation as well as reduce BOD/BODe levels; as well as being easy to transport and store.