Silicone Emulsion
Silicone emulsions are silicone oils dispersed in an aqueous system. Emulsions are ideal for surface treatments, being easy to apply, and simple to prepare. The high viscosity of certain silicone oils can be effectively reduced by their emulsification. The aim of silicone emulsion formulation is to improve & facilitate the product’s presentation, processing and efficiency. The various components in emulsions do not react with one another, nor do they react with the surfaces that they are applied to. Emulsions are therefore ideal for surface treatment applications since they are less viscous than the oils they are delivering.
Silicone Emulsion Properties
Silicone emulsions are insoluble silicones evenly dispersed in water with the aid of an emulsifying surfactant. They can be divided into three groups, depending on the type of emulsifier system used, i.e. they can be anionic, cationic and non-ionic. Most emulsions are non-ionic, making them compatible with either of the other two systems but, depending on the application, cationic or anionic emulsions may be preferable.
The physical characteristics of these emulsions can be altered by using different polymers to modify their viscosity if needed. High percentage solid versions supplied as concentrates, for dilution with water prior to use, reduce transport costs and the space required for their storage.
Silicone fluids are commonly used in the form of aqueous emulsions, which may be further diluted with water.
Why use silicone emulsions?
Silicone emulsions are easy to use and apply, are more environmentally friendly than solvent-based systems and, being water-based do not generate additional health hazards in the workplace.
Emulsion silicone release coating also contribute to lower processing costs and higher production efficiency, since they can be coated in-line directly in paper-making machines, which avoids offline coating, reducing floor space requirements in manufacturing facilities and manpower costs, as well as simplifying logistical requirements.
Applications
- Rubber and plastics as release agents and lubricants
- Food trays and plastic serving dishes as release agents
- Car polishes and household cleaners to improve protection, resistance, gloss and spreadability
- Textile finishing to enhance feel, water repellency and reduce the need for ironing
- Perlite, vermiculite and clay and other building materials to improve water repellency and protect against dampness
- Printing and papermaking for lubrication and as an antistatic agent.
Tulsiram Hanumanbagas Gilada (THG), is a leading trade house for Synthetic Rubbers and Rubber Chemicals. Established and Lead by Mr Ramakant Gilada 3 decades ago at Hyderabad and later expanded to all over South India.
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