Bis[3-(triethoxysilyl)propyl]tetrasulfise
Bis[3-(triethoxysilyl)propyl]tetrasulfise is a multifunctional silicone rubber and tire additive that has been successfully used in the rubber industry. It can increase the modulus and tensile strength of rubber, reduce rubber viscosity, and save process energy consumption.
| Chemical name | Bis[3-(triethoxysilyl)propyl]tetrasulfise |
| Product Category | Sulfur-Containing Silane – Silane Coupling Agent |
| Structural Formula |  |
| CAS No. | 40372-72-3 |
| EINECS | 254-896-5 |
| Molecular formula | C18H42O6S4Si2 |
| Molecular weight | 538.95 |
| Density(25°C),g/cm3 | 1.060-1.100 |
| Total Sulfur | 22% |
| Boiling Point | 250°C |
| Flash Point | 106°C |
| Refractive Index(nD20) | 1.4600-1.5000 |
| Appearance | Yellow or light yellow transparent liquid. |
| Dissolvability | Be soluble in organic solvent. It is almost insoluble in water. |
| Uses | Bis[3-(triethoxysilyl)propyl]tetrasulfise is a kind of silane coupling agent with multiple functional groups successfully used in rubber industry to improve modulus and tensile strength of rubber, to reduce the compound viscosity and save process energy consumption. It is especially applicable for polymers with double bond or rubber formulation with hydroxyl fillers. The suitable fillers include silica, silicate, clay, etc. The suitable rubber include natural rubber (NR), Butadiene styrene rubber (SBR), Isoprene rubber (IR), Butadiene rubber (BR), Acryloni-trile butadiene rubber (NBR), Ethylene propylene diene rubber (EPDM), etc. |
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