SILICONE WATER BASED ANTIFOAMING AGENT FORMULA



A typical silicone water-based antifoaming agent formula would consist of:

• Silicone oil (polydimethylsiloxane):
• This is the primary active ingredient, providing the defoaming properties; typically a low viscosity silicone oil is used for better dispersion in water. 
• Emulsifier:
• A non-ionic surfactant like a polysorbate or a fatty alcohol ethoxylate is needed to create a stable emulsion of the silicone oil in water. 
• Dispersing agent:
• Optional, but can include materials like hydrophilic silica or a finely divided mineral to enhance dispersion and prevent clumping of the silicone droplets. 

Example formulation (percentages by weight):

• Silicone oil (polydimethylsiloxane):
• Non-ionic surfactant (e.g., polysorbate 80
• Deionized water:

Important considerations:

• Silicone oil viscosity:
• The choice of silicone oil viscosity depends on the application. Lower viscosity silicones are generally better for rapid defoaming, while higher viscosity silicones may provide longer-lasting foam suppression. 
• Emulsifier selection:
• The emulsifier should be compatible with the application and have the appropriate hydrophilic-lipophilic balance (HLB) to effectively disperse the silicone oil in water. 
• pH adjustment:
• Depending on the application, pH adjustment may be necessary using small amounts of acid or base to optimize performance. 

Applications for water-based silicone antifoaming agents:

• Industrial wastewater treatment
• Paints and coatings
• Paper production
• Cleaning solutions
• Textile processing
• Agricultural formulations