Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Evonik Dynasylan VTEO Vinyltriethoxysilane Coupling Agent

Evonik Dynasylan VTEO is a bifunctional vinyl silane coupling agent that enhances adhesion between inorganic materials (glass, metals, fillers) and organic polymers (thermoplastics, thermosets, elastomers). It serves as a surface modifier and crosslinking agent with versatile reactivity.

Features Of Evonik Dynasylan VTEO Vinyltriethoxysilane Coupling Agent

  1. Dual Reactivity – Combines hydrolyzable ethoxy groups and vinyl functionality for robust bonding.

  2. Moisture-Induced Crosslinking – Enables wet curing for polymer crosslinking (e.g., polyethylene).

  3. Surface Hydrophobization – Renders fillers and substrates water-repellent and corrosion-resistant.

  4. Water Scavenging – Eliminates trace moisture in sealants and adhesives.

  5. Enhanced Compatibility – Improves dispersion and reduces viscosity in filled polymers.

Typical Applications Of Evonik Dynasylan VTEO Vinyltriethoxysilane Coupling Agent

  1. Wire & Cable Insulation – Crosslinking agent for moisture-curable polyethylene.

  2. Mineral-Filled Composites – Coupling agent for improved mechanical/electrical properties.

  3. Glass & Metal Coatings – Adhesion promoter for anti-scratch and anti-corrosion surfaces.

  4. Sealants & Adhesives – Water scavenger and bonding enhancer.

  5. Acrylic Coatings – Improves adhesion to inorganic substrates.

Specifications Of Evonik Dynasylan VTEO Vinyltriethoxysilane Coupling Agent

Chemical NameVinyltriethoxysilane
FunctionalityVinyl Silane
AppearanceColorless liquid
OdorAlcoholic
SolubilityAlcohols, Hydrocarbons
Hydrolyzable Groups3 ethoxy groups
Reactive GroupsVinyl, Ethoxy
Key FeatureMoisture crosslinking
Recommended Use0.5-2.0% in polymers


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