Chemical Name: Bis-[3-(triethoxysilyl)propyl]-tetrasulfide; OBSi69
CAS No.: 40372-72-3
Molecular Formula: C18H42O6S4Si2
Structural Formula:
Characteristics: Si-69 is a sulfur-containing organosilane containing bifunctional groups. It can be used in the combination of rubber and white base material containing silanol groups.
Specifications:
|
Properties |
Specification |
Test method |
|
Appearance |
Yellow transparent liquid |
Visual |
|
Sulfur content (%) |
21.00-23.00 |
ASTMD6741 |
|
By-products GC*(%) |
≤4.0 |
ASTMD6843 |
|
Specific gravity (25℃, g/cm3) |
1.080±0.02 |
GB/T 4472 |
|
Refractive index (25℃, g/cm3) |
1.480±0.02 |
GB/T 6488 |
|
S2 content HPLC (%) |
17.0±3.0 |
ASTMD6844 |
|
S3 content HPLC (%) |
30.0±4.0 |
|
|
S4 content HPLC (%) |
24.0±3.0 |
|
|
S5-S8 Content HPLC (%) |
27.0±3.0 |
|
|
Average sulfur chain length (%) |
3.75±0.15 |
|
|
Chlorine content (%) |
≤0.6 |
GB/T 3051 |
Application: It is suitable for vulcanized rubber systems with fillers such as white carbon black, glass fiber, talc, mica, clay and other fillers, which can improve the reinforcement ability of the filler and increase the wear resistance of rubber. As rubber additives-vulcanizing agent, active agent, suitable rubber types include NR, NBR, SBR, IR, BR, EPDM, etc. and their combined rubber materials. During the vulcanization process, the cross-linking speed of the tetrasulfanyl group is basically the same as the sulfur reversion rate in sulfur vulcanization, which plays a role in resisting vulcanization reversion, thereby improving the dynamic bending properties of rubber such as heat generation and crack elongation. 4 S atoms can also play a role in promoting vulcanization. It can also be used to make products under dynamic and static working conditions, such as tires, hoses, rubber rollers, tapes, cable insulation and covering materials, shoes and mechanical casting products, which can improve their wear resistance, cut resistance and pressure resistance; Reduce hysteresis and water absorption; improve its mechanical properties and bonding properties; enhance its thermal aging properties, modulus and flex life.
Recommended usage: 1.0-4.0 PHR.
Package: 25kg/drum, 200kg/drum, 890kg IBC drum.
Storage: Stored in cool and dry place with closed container, keep away from fire source. After the container is opened, it should be sealed to prevent water vapor from entering to produce hydrolysis. Stored in the original unopened container at room temperature, this product has a shelf life of 1 year from the date of production.
Transport as non-hazardous goods, HS Code: 2930909099.
Safety and transport: It is classified as a un-dangerous goods according transport legislation, It has no any hurt to use in right way.
Further information: Product technical information and data is based on the best information available and does not constitute or imply a warranty or patent infringement of any kind. The user is responsible for testing product suitability prior to using into production.
