SILANE COUPLING AGENT SI-75
Details
Product name: SILANE COUPLING AGENT Si-75 Formula: C18H42O6S2Si2
Chemical name: Bis [3-(triethoxysilyl)propyl]disulfise Mol. Wt.: 474.82
CAS No.: 56706-10-6
Structure:
SPECIFICATION:
|
Item |
Standard |
|
Appearance |
Colorless to light yellow transparent liquid |
|
Total sulfur content, % |
13.5-15.5 |
|
Average sulfur chain length, % |
2.03-2.27 |
|
Specific gravity (at 25°C), g/cm3 |
1.020-1.060 |
|
Refractive index, ND20 |
1.4500-1.4900 |
|
S2 content, % |
80-90 |
|
Impurities content (Max) ≤% |
4.0 |
|
Chromaticity (Max) ≤ |
6 |
Properties: Be soluble in organic solvent. It is almost insoluble in water. Flash point is about 129°C (Closed cup).
Applications: Si75 is a kind of silane coupling agent with multiple functional groups successfully used in rubber industry to improve modulus and tensile strength of rubber, reduce 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), acrylonitrile butadiene rubber (NBR), Ethylene propylene diene rubber (EPDM), etc. Comparing with Si69, the low-active disulfane group in Si75 provides more reliable scorch safety.
Packing: In 25/200kgs drums.
Storage: Keep container tightly closed in a cool, dry and well-ventilated place, avoiding exposure of the packaged product to direct sunlight.
Send Us a Message
How can we help you ? Get in touch!