Sulfur Silane Coupling Agent Bis [ 3 - ( Triethoxysilyl ) Propyl ] Tetrasulfide A-1289 For Belt Compound of TBR Tire
Product name: Sulfur Silane Coupling Agent Crosile-69
Chemical Name: Bis [3-(triethoxysilyl) propyl] tetrasulfide
Chemical Formula: C18H42O6S4Si2
Equivalent: Si69 ( Deguss), Z-6940 (Dow Corning), A-1289 ( Momentive), KBE-846 ( Shin-Etsu)
Physical Properties
Silane coupling agent Crosile 69 is a pale yellow clear liquid with light odor of ethyl alcohol and soluble easily in ethyl alcohol, acetone, benzene, toluene etc. Insoluble in water.
Specification
| Properties | Target Values(Spec,Limits) |
| Alcohol content | less than 0.5% (wt) |
| CLPTES Content | less than 3.0% (wt) |
| Other impurity content | less than 1.0% (wt) |
| Viscosity 25°C (cps) | less than 14.0 Cps |
| Sulfur Content | 21 - 23 |
| Average chain Length | 3.6 - 3.9 |
| S2 content | 14 - 20 % |
| S3 content | 26 - 34 %(rel.wt) |
| S4 content | 21 - 27 %(rel.wt) |
| S5 to S8 content | 24 - 30 %(rel.wt) |
| Volatility (100°C /10min.) | ≤ 1.0% |
| Specific Gravity (25°C) | 1.06 - 1.1 |
| Refractive Index (25°C) | 1.5 - 1.46 |
Recommend Dosage:1.0-4.0 PHR
Application
Crosile-69 --Bis[3-(triethoxysilyl)propyl]tetrasulfide is a kind of multifunctional silane coupling agent that has been used successfully in the rubber industry. It is used to improve physical and mechanical properties of vulcanizates. It is able to markedly improve tensile strength, tearing strength and abrasive resistance and reduce compression set of vulcanizates. In addition, it can reduce the viscosity and improve the processability of rubber products.
When it used in belt compound of TBR Tire, Crosile 69 can improve the dynamic bonding performance of the adhesive materials, especially after aging.
Packaging and storage
1. Package:25kg or 200kg, 1000 kg in plastic drum.
2. Storage: Kept in a low temperature, dry and ventilated place, avoid direct sunlight.
3. Shelf life: One year in ventilating, cool and dry area.
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Sulfur Silane Coupling Agent Bis 3 - Triethoxysilyl Propyl Tetrasulfide A-1289 For Belt Compound of TBR Tire Images
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