Silane Coupling Agent Si69 for Rubber Industry

• CAS No.: 40372-72-3
• Formula: C18h42o6si2s4
• EINECS: 254-896-5
• Appearance: Liquid
• Usage: Rubber Auxiliary Agents, Plastic Auxiliary Agents, Coating Auxiliary Agents, Textile Auxiliary Agents
• Color: Colorless
• Model NO.: Si69
• Sample: Available
• MOQ: 25kgs
• Storage: Store in a Cool and Dry Place
• Shelf Life: 12 Months
• Transport Package: 25 Kg, 200kg Plastic or Iron Drum or IBC Tank
• Specification: 98% Min Purity
• Trademark: SANJI
• Origin: China
• Production Capacity: 5000 Tons Per Year

Product Description

Silane coupling agent Si69

Chemical Name:  Bis - [γ-(triethoxysilyl) propyl] tetrasulfide
Molecular Formula:  C₁₈H₄₂O₆Si₂S₄
Structural Formula:
Molecular Weight: 539
CAS No.: 40372-72-3

Physical Properties

Physical Form:  Transparent liquid

Color:  Yellow or light yellow

Total Sulfur, %:  22

Specific Gravity at 25/25ºC:  1.1

Boiling Point,ºC:  250

Refractive Index, nD 25ºC:  1.486

Flash Point, Pensky-Martens Closed Cup(1),ºC:  106

Applications
Si69 is a kind of silane coupling agent with multiple functional groups successfully used in rubber industry to improve modulus and tensile strength of rubber, to reduce the compound viscosity and save process energy consumption. It is especially applicable for polymers with double bond or rubber formulation with hydroxyl fillers. The suitable fillers include silica, silicate, clay, etc. The suitable rubber include natural rubber (NR), Butadiene styrene rubber (SBR), Isoprene rubber (IR), Butadiene rubber (BR), Acrylonitrile butadiene rubber (NBR), Ethylene propylene diene rubber (EPDM), etc.
Packaging and Storage
Be packed in 25KG, 200KG drums, IBC and ISO Tank.                                    
Be sealed and stored in cool and well ventilated place. Away from fire and water.

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