Name: Evonik Dynasylan VTEO Vinyltriethoxysilane
Brand: Guangzhou Eric Wei Chemical Co., Ltd.

Features Of Evonik Dynasylan VTEO Vinyltriethoxysilane

Highly reactive vinyl-functional silane enabling strong covalent bonding between organic polymers and inorganic substrates.
Excellent hydrolytic stability due to ethoxy groups, ensuring consistent performance during storage and processing.
Enables efficient surface modification of silica, glass, metals, and mineral fillers for enhanced dispersion and interfacial adhesion.
Compatible with free-radical polymerization systems, supporting copolymerization with vinyl monomers such as styrene, acrylates, and butadiene.
Low volatility and favorable handling characteristics compared to chlorosilane alternatives, supporting safer industrial use.

Typical Applications Of Evonik Dynasylan VTEO Vinyltriethoxysilane

Reinforcing agent for silica-filled rubber compounds (e.g., high-performance tires and technical elastomers).
Adhesion promoter in glass-fiber reinforced plastics (GFRP) and composites for automotive and wind energy sectors.
Surface modifier for mineral fillers (e.g., calcium carbonate, talc) in polyolefin and PVC compounds.
Coupling agent in silicone-modified resins and hybrid organic-inorganic coatings.
Functional additive in cold-cure adhesive formulations and sealants requiring durable substrate bonding.

Chemical Type	Vinyltriethoxysilane
Product Form	Liquid
Appearance	Colorless to pale yellow clear liquid
Primary Applications	Coupling agent, surface modifier, adhesion promoter
Key Features	Vinyl functionality, hydrolyzable ethoxy groups, bifunctional coupling capability
Benefits	Improved mechanical properties, enhanced filler dispersion, reduced compound viscosity, superior wet adhesion
Molecular Weight	208.3 g/mol
Density (20 °C)	0.93–0.95 g/cm³

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