- Contact Person : Ms. Zhang Emily
- Company Name : Beijing Credit New Material Co., Ltd.
- Tel : 86-10-64676421
- Fax : 86-10-64673437
- Address : Beijing,Beijing,No.536, Huaisha Road, Bohai Town, Huairou District, Beijing.
- Country/Region : China
- Zip : 100029
Si-69 silane coupling agents CAS: 40372-72-3
Si-69 silane coupling agents CAS: 40372-72-3
Chemical Name: Silane coupling agent - Bis(3-triethoxysilylpropyl)tetrasulfide
CAS: 40372-72-3
MF: C18H42O6S4Si2
Purity: 97% ISO9001-2008; SGS
Properties:
| Chemical Name: | Bis(3-triethoxysilylpropyl)tetrasulfide |
| CAS No.: | 40372-72-3 |
| EINECS No.: | 254-896-5 |
| Formula: | C18H42O6S4Si2 |
| Molecular Weight: | 539 |
| Boiling Point: | Decomposition above 250°C [760mmHg] |
| Flash Point: | Min.100 °C |
| Pour Point | App. -80°C |
| Color and Appearance: | Yellowish clear liquid |
| Density [25°C]: | 1.09 |
| Volatiles components | Max 4.0% |
| Average chain length | 3.75 +/- 0.15 |
| Total Sulfur (standard value) | 22.7 +/- 0.8 % |
| Soluble in | Primary alcohols, ketones, benzene, toluene, chlorinated hydtocarbons, acetonitrile, dimethylformaminde, dimethysulfoxide |
| Insoluble in | Water |
Equivalents:
Momentive (formerly OSi Specialties ) Silquest A-1289 Dow Corning Z-6940 ShinEtsu KBE-846 EVONIK Degussa Si 69 UCT Specialties (formerly Petrarch) B2494
Application:
1. Bis[3-(triethoxysilyl)propyl]tetrasulfide (CAS No. 40372-72-3), reacts with fillers containing silanol groups during mixing and with the polymer during the vulcanization process under formation of covalent chemical bonds. This imparts better tensile strength, higher module, reduced compression set, increased abrasion resistance and optimized dynamic properties.
2.Si-69 is used in many applications where white fillers containing silanol groups are involved and optimum technical properties are required.
3. Tires: An excellent reinforcing agent in tires to reduce heat built-up, reduce rolling resistance and improve the tires wet grip.
4. Shoe Soles: Generally applicable silane for improving abrasion resistance of sole compounds containing precipitated silica.
5. Mechanical Rubber Goods: General use silane for achieving good dynamic properties, low compression set and high abrasion resistance in mixtures containing white fillers.
6. Adhesives and sealants: An excellent adhesion promoter to glass, aluminum, steel and other inorganic surface in polysulfide, nitrile and other rubber adhesives, sealants and coatings.
Packing & storage:
1. 200L PVF steel barrel or 1000L IBC drum
2. Store in a cool, dry place. Avoid light.
Si-69 silane coupling agents CAS: 40372-72-3
