BIS[3-(TRIETHOXYSILYL)PROPYL]-DISULFIDE

Details:

Common name: Bis(triethoxysilylpropyl) disulfide

Category: Chemical raw materials

Other name: BIS[3-(TRIETHOXYSILYL)PROPYL]-DISULFIDE

CAS No.: 56706-10-6

EINECS No.: 260-350-7

Appearance: Liquid

Molecular formula: C18H42O6S2Si2

 

Brand Name: Colorcom

Shelf Life: 2 Years

Place of Origin: China

 

Product Specification:

Property	Value
Chemical Name	Bis(triethoxysilylpropyl) disulfide
CAS Number	56706-10-6
EINECS Number	260-350-7
Molecular Formula	C18H42O6S2Si2?
Molecular Weight	486
Appearance	Light yellow liquid
Density (16/24°C) (g/cm³)	1.03 ± 0.02
Minor Components	Propyltriethoxysilane
	Chloropropyltriethoxysilane
	Ethanol
Flash Point	>120°C
Volatile Content (%)	≤4.0
Average Chain Length (%)	2.35 ± 0.15
Total Sulfur Content (Nominal) (%)	15.2 ± 0.5

 

Product Description:
This product is a new type of bifunctional sulfur-containing organosilane, and its chemical name is [bis (triethoxysilyl propyl) disulfide].

This product has a specific sulfur chain distribution. Its emergence has improved the processing defects when tetrasulfide organosilane was applied in the white carbon black - rubber system in the past, enhanced the productivity of the rubber processing industry, and is highly likely to replace tetrasulfide silane.

In the past, polysulfur compounds were prone to desulfurization and the formation of free sulfur during the high-temperature mixing process above 150℃. The appearance of free sulfur led to the vulcanization effect in this high-temperature mixing process, causing the gelation of the rubber mixing system, reducing the rheological properties of the system, and seriously resulting in the decline of processing performance. However, if the mixing temperature is too low, it will lead to incomplete reaction between the silanol groups on the surface of the white carbon black and the silane coupling agent, resulting in insufficient reinforcing effect. Similarly, the dispersion of the white carbon black in rubber is also poor. Moreover, the ethanol generated by the reaction between the silanol groups on the surface of the white carbon black and the silane coupling agent cannot be completely evaporated, and the remaining ethanol will form bubbles during the extrusion process. Therefore, in the past, when using silane coupling agents and white carbon black reinforcement, it was necessary to mix them in multiple steps at 150℃, which inevitably reduced productivity.

The emergence of disulfide silane coupling agents has completely avoided the above deficiencies. Its specific sulfur chain distribution characteristics ensure a certain high-temperature stability of the product and avoid the formation of free sulfur during the desulfurization of polysulfide silane in the high-temperature mixing process. It ensures that the silane coupling agent and white carbon black can fully react at a temperature above 150℃ and simultaneously complete uniform dispersion in rubber without affecting

Impact processing performance. This greatly improves the production efficiency of the processing procedure, and at the same time enables rubber products to obtain excellent properties such as low heat generation and wear resistance.

The excellent physical and chemical properties as well as processing performance of this product not only enhance the physical properties of rubber products but also reduce their production costs.

 

Application: 

Improve the durability of the product.

Package: The standard packaging of this product is 200Kg iron drums and 1000Kg IBC container drums.

Storage: Sealed in dry, Room Temperature.

Executive Standards: International Standard.