Grade: CG-151
Triethoxyvinylsilane
CG-151 (Triethoxyvinylsilane) is a typical vinylsilane that can undergo addition reactions via its double bonds in the presence of peroxides or free radical initiators. The ethoxy groups can hydrolyze to form silanol structures, which bond with substrates or undergo self-condensation. Compared to methoxysilanes, it offers improved hydrolytic stability, making it suitable for applications requiring high resistance to hydrolysis.
- CAS No.: 78-08-0
- EC No.: 201-081-7
- Molecular Formula: C8H18O3Si
- Structural Formula
- Synonyms: Vinyltriethoxysilane
- Appearance: colorless, transparent liquid
- Purity: ≥98%
- Density (20 °C): 0.895-0.915 g/cm3
- Boiling point: 160.5 °C
- Solubility: soluble in ethanol、isopropanol、acetone、benzene、organic solvents such as toluene and gasolinesolvents，hydrolyzes in water，alkaline，low reaction rate。
- Flash point: 34 °C
- Refractive index（nD20）: 1.397-1.399
Packaging and Storage
This product can be packaged in 25 kg plastic drums, 200 kg plastic drums, or steel drums. Other package sizes are available upon request. Store in a cool, well-ventilated, dry place in tightly sealed containers, protected from light. Keep away from moisture and sources of ignition. Ensure the lid is tightly sealed and effectively isolates the product from air; moisture in the air can react quickly, thereby leading to hydrolysis and polymerization. Shelf life in the original unopened packaging is one year. This product is irritating to skin and eyes. If it contacts skin, wash with soap. If it contacts eyes, rinse immediately with plenty of water.
Application
CG-151 contains vinyl and methylsilyl functional groups, functioning as both a coupling agent and a crosslinking agent. It is suitable for polymers such as polyethylene, polypropylene, and unsaturated polyester, and can be applied in inks, coatings, sealants, glass fiber, filler treatment, resin modification, and cable compound fields. Its reactivity is slightly lower than that of vinyltrimethoxysilane.
CG-151 is used as a comonomer or grafting component to prepare various polymers, such as acrylic emulsions and styrene-butadiene latex, to improve the water resistance, adhesion, and scrub resistance of the polymers.
CG-151 can bond with inorganic fillers and organic polymer powders reactive to vinyl groups, hydrophobizing the filler surface and providing vinyl active functional groups.
CG-151 can be added to various silane-modified polymer-based sealants as a crosslinking curing component.
CG-151 is suitable for polyethylene materials and copolymers of all densities and complex shapes, as well as filled composites with a wide processing latitude. It can be used at higher temperatures, and the resulting products possess properties such as stress crack resistance, abrasion resistance, and impact resistance.
