| KH-591 | KH-592 | |
| Chemical Name | 3-mercaptopropyltrimethoxysilane | 3-mercaptopropyltriethoxysilane |
| CAS number | 4420-74-0 | 14814-09-6 |
| Molecular structure | ||
| Molecular formula | C6H16O3SSi | C9H22O3SSi |
Corresponding products abroad:
| model | Maitu | Dow Corning | Shin-Etsu | Degussa | Wacker |
| KH-591 | A-189 | Z-6062 | KBM 803 | MTMO | GF 70 |
| KH-592 | A-1891 | Z-6911 | N/A | N/A | N/A |
Typical physical properties:
| index | Typical value | |
| KH-591 | KH-592 | |
| Molecular weight | 196.34 | 238.42 |
| Appearance and smell | Low viscosity colorless to light yellow clear transparent liquid, slightly odorous. | |
| Density (ρ20), g/cm3 | 1.057 | 0.987 |
| Boiling point (760mmHg), ℃ | 212 | 200 |
| Refractive index () | 1.440 | 1.433 |
| Solubility | Soluble in methanol, ethanol, isopropanol, acetone, benzene, toluene, xylene and other organic solvents, slightly soluble in water, but will hydrolyze. | |
Product features and uses:
1. This product is especially suitable for sulfur vulcanization and metal oxide vulcanization system rubbers, which can significantly improve the performance of inorganic fillers to reinforce rubber, such as tensile strength, tear strength, heat resistance, wear resistance, resilience and compressibility Etc., and can improve the rheology, especially in light-colored rubber products.
2. This product can replace the general-purpose polysulfide silane. In the formula of low rolling resistance tires and rubber rollers, only a lower amount is needed to achieve the same performance.
3. This product can be used as an adhesion promoter in coating and adhesive formulations, and can also be used to modify polyurethane adhesives.
Packing: 20KG/barrel.
Storage conditions and shelf life: Store indoors in a dark place, keep ventilated, cool and dry. Make sure the lid is well sealed and can effectively isolate the air. The shelf life of the original packaged products is one year, and expired products can only be used after passing the test.
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