Silane coupling agent Si75 CAS No. : 56706 10 6

Product Overview

Description

Silane Coupling Agent Si75  CAS No. : 56706-10-6

 

Chemical name:  Bis-(γ-triethoxysilylpropyl)- disulfide

Structural formula: (C₂H₅O)₃Si(CH₂)₃-S-S -(CH₂)₃Si(OC₂H₅)₃

Molecular formula: C₁₈H₄₂O₆Si₂S₂  

Molecular weight: 474.83

CAS No. : 56706-10-6

Corresponding grades around the world: A-1589 (Wolters Kluwer, US); Z-6820 (Dow Corning, US); Si-75/Si-266 (Degussa, German)

Item	Indicators
Appearance	Light yellow transparent liquid
Density (20°C), g/cm3	1.040±0.020
Sulfur content, %	14.5±1.0
Impurities before, % ≤	1.0
Et OH content, % ≤	0.5
γ2, % ≤	3.0

Characterization and application:

The product is a multifunctional silane coupling agent which has been applied successfully in the rubber industry. It can be used to increase rubber’s “wetting” ability to fillers, to improve the reinforcing effect of fillers, and to reduce the rolling resistance. Thus the mechanical properties, as well as compression heat, wear and permanent deformation performance of vulcanizate can be ameliorated significantly. By using Si75, the adverse effects of fillers on curing rate and crosslinking degree can be eliminated and the mooney viscosity of rubber compound can be reduced, as a result, the manufacturing process can be improved significantly. Meanwhile, the cure reversion phenomenon, to some extent, can also be relieved. More reliable scorch safety can be gained by using Si75 than by Si69, as the structure of Si75 with bifunctional organosilane disulfide.

The product is suitable for the polymers containing double bond (eg. NR, NBR, SBR, IR, BR, EPDM, or their combination) or for the rubber formulation containing fillers with hydroxy functional groups (eg. white carbon, silicate, etc.).

Package & Storage:

Packaging: 200 kg or 1000 kg net packed in plastic drum.

Storage:Storing in cool, dry place with good ventilation, far away from moisture, water and fire source.

 

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Joanne 

Henan Kingway Chemcials Co.,Ltd.

Tel: 86-0371-65336570