Vinyl-terminated polydimethylsiloxane polymers
Chemical Structure
Introduction
SiSiB® vinyl-terminated dimethylpolysiloxanes are available in a variety of viscosities. Vinyl terminated silicone fluid is a base polymer for addition-curing RVT-2k (room temperature vulcanizing two component), LSR (liquid silicone rubber) silicone rubber. The terminal vinyl groups take part in the vulcanization reaction with Crosslinking agents in the presence of Catalysts.
Typical Physical Properties
| Product: | Vinyl-terminated polydimethylsiloxane polymers |
|---|---|
| CAS No.: | 68083-19-2 |
| Color and Appearance： | Colorless clear liquid |
| Active Content: | 100% |
| Specific Gravity 25°C | 0.97~0.98 |
| Refractive Index 25°C: | 1.3950~1.4120 |
| Vinyl Content: | 0.37~0.43% |
| Viscosity 25°C: | 475~525 cSt |
| Available Viscosity: |
Viscosity : 20cst, 80cst, 200cst, 500cst, 1000cst, 3000cst, 5000cst, 10000cst, 50000cst, 65000cst, 100000cst, 165000cst, Other vinyl contents and viscosity levels can be made upon request. |
Applications
SiSiB® VF6030-500 can be used as base polymers or as blend polymers in order to create the desired hardness. These polymers can be cured with silicon-hydride crosslinkers and a platinum catalyst.
GUIDE – SiSiB SILANES & SILICONES – Addition Silicone Rubber formulation solution.
Packings
SiSiB® VF6030-500 is supplied in 190Kg steel drum or 950Kg IBC tote.