What is an emulsion ? • Mixture of two non-miscible substances stabilised by surface active ingredients • Particles (droplets) are stabilized and formed by surfactants • O(il)/W(ater) emulsions replace solvent based products (environmental friendly) Typical properties • O/W or W/O emulsions: • O/W emulsions (e.g. Sempure 60) can be...
Silicone emulsions for the technical market
There are no products in this collection. Keep on shopping.
What is an emulsion ?
• Mixture of two non-miscible substances stabilised by surface active ingredients
• Particles (droplets) are stabilized and formed by surfactants
• O(il)/W(ater) emulsions replace solvent based products (environmental friendly)
Typical properties
• O/W or W/O emulsions:
• O/W emulsions (e.g. Sempure 60) can be diluted with water
• W/O emulsions cannot be diluted with water
• Viscosity:
• Depends on active content, surfactant type/concentration, thickener
• Sharp increase for o/w emulsions with >60% oil
• Often pre-diluted with water before use
Surfactant types
Types:
• Non-ionic (e.g. Alcohol ethoxylates)
• Anionic (e.g. Sodium Laurylethersulphate)
• Cationic (e.g. Alkyl Ammoniumchloride)
• Amphoteric (both anionic & cationic)
• Critical for emulsions stability
• Optimization of surfactant HLB based on emulsified substance (silicone oil, mineral oil, water (w/o emulsion))