SI69-50
Composition：50% Bis-[3-(triethoxysilyl)propyl]-tetrasulfide, 50%Carrier and dispersion agent
Appearance：Light yellow translucent particles
Density：About 1.25g/cm3
Sulfur element：Typical value 11.0%
Filtration（μm）：200
Description
This Rubber Coupling Agent SI69-50 has the role of activator, coupling agent, softener , reinforcing agent and vulcanizing agent in rubber industry. It can reduce the Mooney viscosity of the rubber compound and improve the extrusion and rolling properties, and increase the tensile strength, dynamic properties , tear strength and wear resistance of vulcanizates.
Function
The silane coupling agent JXBHgran SI69-50 not only has the function of an activator and a coupling agent, but also has the function of cross-linking reinforcing serving as a reinforcing agent and a vulcanizing agent in the rubber industry. It can be used in natural rubber, isoprene rubber, styrene butadiene rubber, butadiene rubber, neoprene rubber and other synthetic rubber. It can increase the tensile strength, tear strength and wear resistance of vulcanizates, and at the same time improve the dynamic properties of vulcanizates.
Dosage
In accordance with the formula used twice the amount of silane coupling agent Si-69.
Application
It can be used for tires, hoses, conveyor belts, rubber shoes and so on. It is widely used in the production of radial tires.
Packing
25 kg/carton，built-in vacuum packaging.
Storage
Cool and dry condition, the storage period is at least one year.
Chemical Properties
Chemical name: Bis-[3-(triethoxysilyl)propyl]-tetrasulfide
Molecule formula: C18H42O6S4Si2
Molecule structure: 
Molecular weight: 538.95
CAS number: 40372-72-3
| Technical indicators: | Flash point： ≥100.0℃ Total sulfur content：21.7-23.3% Chlorine content： ≤0.4% Density ： 1.07-1.09g/cm3 |
