Specifications

SC-Si69 silane coupling agent
Cas no 40372-72-3
Chemical name: Bis-(Y-triethoxysilylpropyl)-tetrasulfide

SC-Si69 silane coupling agent cas no 40372-72-3

 

Chemical Name: Bis-(γ-triethoxysilylpropyl)-tetrasulfide
CAS No.: 40372-72-3
Corresponding other producer’s name:A-1289(OSi),Z-6940(Dow Corning),Si 69(Degussa)
Product appearance:Yellowish clear liquid

 

 

PROPERTIES	SPECIFICATION	TEST METHOD
Sulfur Content (%)	21.7-23.3	Combust
Average Sulfur Chain Length (%)	3.55-3.82	Liquid Chromatography
CLPTES Content (%)	≤3.0	Gas Chromatography
EtOH Content (%)	≤0.5	Gas Chromatography
Impurities Before (%)	≤1.0	Gas Chromatography
Specific Gravity (g/cm3)	1.080±0.02(20°C)	Hydrometer
Refractive Index (nD)	1.480±0.02(25°C)	Abbe Refractometer
Chroma	≤6	Colorimeter
Viscosity (cPa.s)	≤14	Rotational Viscometer
Transparency	Transparent	Visual

 

Application:

1. It is a successful multi-purpose silane coupling agent which is used in rubber and plastic industry. By its application, the rubber’s physical and mechanical properties can be improved, tensile strength, anti- peel strength, wear-resisting ,etc., can be significantly improved, the permanent deformation can be reduced. Meanwhile it may reduce the material viscosity and enhance workability.
2. It is specially suitable for the vulcanized rubber system which uses silica, silicate and so on as reinforcing additive. Suitable fillers include silica, talc powder, clay, mica powder, pottery clay and so on, and suitable polymers include NR, IR, SBR, BR, NBR, EPDM etc..
Packing:

Packed with 5L,20L,210L plastic/steel drum or 1000L IBC container, also can be packed according to customer’s requirement.
Storage:

Seal and store it in a cool, dry and ventilated place, keep moisture-proof and waterproof, far away from kindling material and heat source.

 

 

SC-Si69 silane coupling agent cas no 40372-72-3