Bis-(3-(triethoxysilane)-propyl)-tetrasulfide KH-Si69
Chemical name: bis - [γ- (triethoxysilyl) propyl] tetrasulfide
Molecular Formula: (H5C2O)3Si(CH2)3·S4·(CH2)3·Si(OC2H5)3
Physical and chemical properties and indicators:
This product is a light yellow transparent liquid with a slight smell of ethanol.
| Exterior | Light yellow to yellow transparent liquid |
| content(%) | ≥22.0 |
| Density (ρ20 )g/cm3 | 1.089±0.005 |
| Refractive index (n) | 1.4850±0.0005 |
| Viscosity | 11.2cst |
| Soluble | ethanol, ketones, benzene, acetonitrile, dimethylformamide, dimethyl sulfoxide, chlorinated hydrocarbons |
Uses: commonly used in the treatment of inorganic fillers such as carbon black, SiO 2 etc. It not only has the role of activator and coupling agent, but also has the role of crosslinking agent, softener and reinforcing agent. It is used as a reinforcing agent and in the rubber industry. Vulcanizing agent. It can be used for natural rubber, isoprene rubber, styrene butadiene rubber, butadiene rubber, butyl ester rubber, neoprene rubber, butyl rubber, halogenated butyl rubber, EPDM rubber and oil-extended rubber of these rubbers, It can also be used in combination of these rubbers.
Function:
1. Unvulcanized rubber compound
(1) Reduce Mooney viscosity; (2) Reduce scorch phenomenon; (3) Increase the degree of vulcanization; (4) Improve mixing, calendering, and extrusion characteristics greatly.
2. Vulcanized rubber
(1) Increased tensile strength; (2) Increased fixed tensile strength; (3) Reduced permanent deformation; (4) Improved heat generation and dynamic characteristics; (5) Improved silicon abrasion performance: (6) The tear strength is improved; (7) The swelling in water and other substances is improved.