Chemical Structure
Introduction
Polydiethylsiloxanes offer the same beneficial properties as the Polydimethylsiloxanes with improved compatibility with commonly used cosmetic waxes and oils.
Polydiethylsiloxanes offer improved metal-metal lubrication and low temperature properties when compared to polydimethylsiloxanes.
Typical Physical Properties
| Product: | SiSiB® EF2050-300 |
|---|---|
| CAS No.: | 63148-61-8 |
| Molecular Weight: | 1300~2000 |
| Color and Appearance: | Colorless to straw liquid |
| Specific Gravity [25°C]: | 0.991 |
| Refractive Index [25°C]: | 1.447 |
| Flash Pointt: | 256°C |
| Pour Point: | -115°C |
| Thermal Conductivity, W/m°C: | 0.157 |
| Viscosity [25°C]: | 200~400 cSt |
Applications
Low surface tension enables Polydiethylsiloxanes to spread easily on skin and hair, acting as a lubricant and de-tackifying agent. Polydiethylsiloxane has a slippery, emollient, yet non-greasy skin feel with more body and cushion than Polydimethylsiloxane of equal viscosities.
Unlike Polydimethylsiloxanes, Polydiethylsiloxanes wet pigments well, when formulating color cosmetics.
They are oxidatively stable to 150°C and thermally stable under inert atmospheres to 225°C. These fluids are often used in low temperature aerospace hydraulics.
Packings
SiSiB® EF2050 is supplied in 210L steel drum., for more details, please visit Packing Centre.