Dynasylan® VTMOEO

Dynasylan® VTMOEO is a bifunctional organosilane possessing a reactive vinyl group and a hydrolyzable 2­methoxy­ethoxy- silyl group.

Principal: Evonik Corporation Silanes

Functions: Adhesion Promoter, Adhesion Promoter, Coupling Agent, Coupling Agent, Crosslinking Agent, Crosslinking Agent, Surface Modifier, Surface Modifier

Compatible Polymers & Resins: Thermoplastic Elastomers (TPE)

Labeling Claims: Listed in California Prop 65

Features: Low Viscosity

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Enhanced TDS

Identification & Functionality

Features & Benefits

Applications & Uses

Compatible Polymers & Resins
Compatible Substrates & Surfaces
Product Applications
  • 1. Adhesion promotion:
    • Dynasylan® VTMOEO acts as an adhesion promoter for various mineral ­filled polymers improving their mechanical and electrical properties, especially after exposure to moisture.
    • Once bonded to an inorganic filler, Dynasylan® VTMOEO hydrophobises the filler surface.
    • This effect improves the compatibility of fillers with the polymer matrix, leading to a better dispersibility, reduced melt viscosity and easier processing of filled plastics.
    • The principle of the adhesion promotion is shown below:
  • 2. Dynasylan® VTMOEO as co­monomer for polymer dispersions
    • Polymer dispersions (e.g. styrene acrylics), modified with Dynasylan® VTMOEO show improved adhesion strenghth in wet conditions and wet scrub resistance.
  • Other applications:
    • Dynasylan® VTMOEO can also be used as additive in organic coatings to improve adhesion on inorganic surfaces (metals, glass, ceramic surfaces), as well as for surface treatment of inorganic pigments.
Processing Information

Toxicological and Environmental Aspects:

  • When exposed to moisture Dynasylan® VTMOEO liberates 2­ methoxyethanol.
  • This alcohol is suspected to be teratogenic.
     

Properties

Physical Form
Product Reactivity
  • In the presence of moisture, the methoxy­ethoxy groups of Dynasylan® VTMOEO hydrolyze to produce 2­methoxyethanol and reactive silanol (Si­OH) groups which can bond to a variety of inorganic substrates.
  • The vinyl functional end of Dynasylan® VTMOEO can react with a suitable polymer (activated by peroxide or radiation).

Regulatory & Compliance

Packaging & Availability

Packaging Type
Product Packaging
  • Dynasylan® VTMOEO is supplied in 25 kg containers, in 200 kg drums, or in 1.000 kg IBC one­way containers.

Storage & Handling

Storage Conditions
  • The containers must remain tightly sealed during storage and kept in a cool, well aired place.
  • Product should be protected against humidity.
  • In the unopened container the shelf life of Dynasylan® VTMOEO is one year.

Other

Appearance
Colorless low ­viscosity liquid
Autoignition Temperature (SDS)
410.0 °F
Boiling Point
108.0 °C
Boiling Point (SDS)
545.0 °F
Color (SDS)
Colorless
Density
1.04 g/cm³
Density (SDS)
1.05 g/cm³
Explosive Nature (SDS)
Non explosive
Flash Point
115.0 °C
Flash Point (SDS)
239.0 °F
Freeze Point (SDS)
-202.0 °F
Immiscible In (SDS)
Water
Item Number
Kinematic Viscosity (SDS)
2.16 mm²/s
Kinematic Viscosity (SDS)
2.16 mm²/s
Kinematic Viscosity (SDS)
3.14 mm²/s
Kinematic Viscosity (SDS)
3.14 mm²/s
Odor
Typical aromatic odor
Other Hazards
None.
Principal
Refractive Index
1.43
Shelf Life
1.0 yr
Vapor Pressure (SDS)
0.43 Pa
Viscosity
2.7 mPa.s
Viscosity (SDS)
2.8 mPa.s
Optical Properties
ValueUnitsTest Method / Conditions
Refractive Index1.43-DIN 51423 nD20
Shelf Life & Stability
ValueUnitsTest Method / Conditions
Shelf Life1.0 yryr
Physical Properties
ValueUnitsTest Method / Conditions
Boiling Point108.0 °C°CDIN 51356 at 2.7 hPa
Density1.04 g/cm³g/cm³DIN 51757 At 20°C
Flash Point115.0 °C°CDIN 51758
Viscosity2.7 mPa.smPa.sDIN 53015 At 20°C
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Autoignition Temperature (SDS)410.0 °F°FDIN 51794 at 1,013 hPa
Boiling Point (SDS)545.0 °F°FDIN 51751 at 1013 hPa
Density (SDS)1.05 g/cm³g/cm³DIN 51757 at 20°C
Flash Point (SDS)239.0 °F°FDIN EN ISO 2719
Freeze Point (SDS)-202.0 °F°Fat 1013.0 hPa
Kinematic Viscosity (SDS)2.16 mm²/smm²/sOECD 114 at 40⁰C
Kinematic Viscosity (SDS)2.16 mm²/smm²/sAt 104°F
Kinematic Viscosity (SDS)3.14 mm²/smm²/sAt 68°F
Kinematic Viscosity (SDS)3.14 mm²/smm²/sOECD 114 at 20°C
Vapor Pressure (SDS)0.43 PaPaAt 77°F
Viscosity (SDS)2.8 mPa.smPa.sDIN 53015 at 20°C