Bis[3-(triethoxysilyl)propyl]tetrasulfide
Uses Application- Product Name
- Bis[3-(triethoxysilyl)propyl]tetrasulfide
- CAS No.
- 40372-72-3
- Chemical Name
- Bis[3-(triethoxysilyl)propyl]tetrasulfide
- Synonyms
- TESPT;A-1289;KHSI69;Z-6940;CG-Si69;KBE-846;CouplingagentG-407;Bis[3-(triethoxysily;Silane coupler KH-858;SilanecouplingagentSI-69
- CBNumber
- CB1169012
- Molecular Formula
- C18H42O6S4Si2
- Formula Weight
- 538.95
- MOL File
- 40372-72-3.mol
Bis[3-(triethoxysilyl)propyl]tetrasulfide Property
- Boiling point:
- 250 °C
- Density
- 1.08 g/mL at 20 °C(lit.)
- refractive index
- n20/D 1.49
- Flash point:
- 91°C
- form
- Liquid
- Specific Gravity
- 1.095
- Water Solubility
- Miscible with toluene, primary alcohols, ketones, benzene, chlorinated hydrocarbons, acetonitrile, dimethylformaminde and dimethysulfoxide. Immiscible with water.
- Hydrolytic Sensitivity
- 7: reacts slowly with moisture/water
- BRN
- 2062235
- InChIKey
- VTHOKNTVYKTUPI-UHFFFAOYSA-N
- CAS DataBase Reference
- 40372-72-3(CAS DataBase Reference)
- EPA Substance Registry System
- 3,16-Dioxa-8,9,10,11-tetrathia-4,15-disilaoctadecane, 4,4,15,15-tetraethoxy- (40372-72-3)
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P271Use only outdoors or in a well-ventilated area.
P280Wear protective gloves/protective clothing/eye protection/face protection.
N-Bromosuccinimide Price
- Product number
- 15200
- Product name
- Bis[3-(triethoxysilyl)propyl] tetrasulfide
- Purity
- technical, ≥90% (NMR)
- Packaging
- 50ml
- Price
- $272
- Updated
- 2024/03/01
- Product number
- 042410
- Product name
- Bis[3-(triethoxysilyl)propyl]tetrasulfide, S 22.3% (typical)
- Packaging
- 5g
- Price
- $34.65
- Updated
- 2024/03/01
- Product number
- 042410
- Product name
- Bis[3-(triethoxysilyl)propyl]tetrasulfide, S 22.3% (typical)
- Packaging
- 25g
- Price
- $99.65
- Updated
- 2024/03/01
- Product number
- 042410
- Product name
- Bis[3-(triethoxysilyl)propyl]tetrasulfide, S 22.3% (typical)
- Packaging
- 100g
- Price
- $268.65
- Updated
- 2024/03/01
- Product number
- 042410
- Product name
- Bis[3-(triethoxysilyl)propyl]tetrasulfide, S 22.3% (typical)
- Packaging
- 500g
- Price
- $596
- Updated
- 2024/03/01
Bis[3-(triethoxysilyl)propyl]tetrasulfide Chemical Properties,Usage,Production
Uses
Bis[3-(triethoxysilyl)propyl]tetrasulfide is a silylating coupling agent and modifier, and has been used in the design of a new generation of sustainable self-healing styrene-butadiene compounds.
Application
When used in rubber compounds, it produces these effects:
Coupling agent for non-black pigments;
Cure equilibrium for reversion resistance;
Curing agent for good heat aging.
Coupling Agent - With as little as 0.5 to 1.0 phr with clay fillers and 1.0 to 4.0 phr for silica pigments, BIS[3-(TRIETHOXYSILYL)PROPYL]TETRASULFIDE couples the non-black pigment and elastomers resulting in increases in modulus and increase in abrasion resistance.
Cure Equilibrium - BIS[3-(TRIETHOXYSILYL)PROPYL]TETRASULFIDE has four sulfur atoms positioned in the center. At cure temperatures, these participate with sulfur in producing polysulfidic crosslinks. The BIS[3-(TRIETHOXYSILYL)PROPYL]TETRASULFIDE replaces crosslinks broken during cure, resulting in reversion resistant, and with proper compounding, reversion free compounds. This is known as equilibrium cure. The dynamic flex characteristics, E.G., heat generation and crack growth, are dramatically improved.
Curing Agent - Removing all sulfur from the compound for NR, SBR, NBR and replacing it with BIS[3-(TRIETHOXYSILYL)PROPYL]TETRASULFIDE and certain thiuram accelerators, produces compounds with excellent heat aging characteristics in addition to the coupling effects. BIS[3-(TRIETHOXYSILYL)PROPYL]TETRASULFIDE is a silane coupling agent that has crosslinking and accelerator activity in rubber compounds.
Area of rubber industry where they would be beneficial
Footwear - Abrasion resistance | Cutting and chunking resistance | Flex life improvement
Rolls - Abrasion resistance | Aging resistance | Processing | Set reduction (better load bearing) | Reduced water swell | Lower hysteresis
Mechanical Molded Goods - Increased modulus | Better heat aging | Compression set reduction | Dynamic property improvement | Reduced swell to polar liquids | Filler substitution (non-black for black)
Hose - Improved abrasion on cover | Better heat aging | Increased modulus | Lower compression set | Improved adhesion to reinforcing elements
Solid Tires - Improved abrasion | Lower hysteresis | Higher modulus | Improved processing | Possibly better adhesion
Tires - Treads for abrasion, hot tear | Carcass for adhesion and/or filler substitution | Breaker (belt) stocks for adhesion
Belts Flat Belts - Increased abrasion | Improved reversion resistance | Reduced cost with clay substitution for black | Improved cord adhesion | Increased flex life and modulus
V Belts - Increased modulus | Improved abrasion | Longer flex life | Improved adhesion to reinforcing elements
Chemical Properties
Yellowish clear liquid
Uses
Bis[3-(triethoxysilyl)propyl]tetrasulfide is used in radial tires, rubber tire treads, carcass, tire walls, solid rubber tires and other rubber products. It acts as a chemical intermediate and as a cross linking agent. Furthermore, it acts as a coupling agent used to chemically modify silica surface. In addition, it serves as a curing agent for good heat aging.
Uses
Bis[3-(triethoxysilyl)propyl] tetrasulfide (TESPTS) is generally used as a crosslinking agent and reinforcing filler in the manufacturing of rubber. TESPT film provides corrosion protection to the metallic substrates. It is also used as a precursor in the synthesis of mesoporous organosilicas.
Bis[3-(triethoxysilyl)propyl]tetrasulfide Preparation Products And Raw materials
Raw materials
Preparation Products
Bis[3-(triethoxysilyl)propyl]tetrasulfide Suppliers
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View Lastest Price from Bis[3-(triethoxysilyl)propyl]tetrasulfide manufacturers
- Product
- Bis[3-(triethoxysilyl)propyl]tetrasulfide 40372-72-3
- Price
- US $1.00/Kg/Drum
- Min. Order
- 1KG
- Purity
- Sulfur :21.5%
- Supply Ability
- 200mt per month
- Release date
- 2021-09-22
- Product
- Bis[3-(triethoxysilyl)propyl]tetrasulfide 40372-72-3
- Price
- US $0.00-0.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 500000kg
- Release date
- 2024-10-30
- Product
- Bis[3-(triethoxysilyl)propyl]tetrasulfide 40372-72-3
- Price
- US $10.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 10 mt
- Release date
- 2022-11-03