Dynasylan® BTSE

Dynasylan® BTSE is the only commercially available bipodal alkylsilane. It is used in numerous applications where its nature as an excellent crosslinking agent is crucial. Its use usually requires acid- or alkali-catalysed hydrolysis. Since all six ethoxy groups are able to participate in this reaction, Dynasylan® BTSE is regarded as hexafunctional. Hydrolysis leads to silanol groups which, in a subsequent condensation reaction, form very stable siloxane bonds (-Si-O-Si-). Condensation starts before hydrolysis is complete. During storage of these hydrolysates, condensation continues until a gel is formed.

Principal: Evonik Corporation Silanes

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

Chemical Name: 1,2- Bis(triethoxysilyl) ethane

Compatible Polymers & Resins: Silicones

Chemical Family: Organosilane

End Uses: Anti-Scratch Coating, Barrier Coating, Electronics, Filler Treatment, Primer, Putty, Silicone Sealant, Sol-Gel Coating

Labeling Claims: Not Listed In California Proposition 65

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Enhanced TDS

Identification & Functionality

Blend
No
CASE Ingredients Functions
Chemical Family
Chemical Name
Function
Adhesion Promoter, Corrosion Inhibitor, Coupling Agent, Crosslinking Agent, Precursor, Surface Modifier
Industrial Additives Functions
Plastics & Elastomers Functions
Product Code
MITM10351
Single Ingredient
Yes
Synonyms
[(Triethoxysilyl)ethyl]triethoxysilane, 1,1,1,4,4,4-Hexaethoxy-1,4-disilabutane, 1,2-(Triethoxysilyl)ethane, 1,2-Bis(3-(triethoxy)silylpropyl)ethane, 1,2-Bis(3-ethoxysilyl)ethane, 1,2-Bis(triethoxysilyl)ethane, 1,2-Di(triethoxylsilyl)ethane, 1,2-Di(triethoxysilyl)ethane, 4,4,7,7-Tetraethoxy-3,8-dioxa-4,7-disiladecane, Bis(triethoxysilyl)ethane, BTESE, Ethylenebis(triethoxysilane)
Technologies
Product Families

Features & Benefits

Applications & Uses

Adhesive & Sealant End Applications
Applicable Processes
Coating End Applications
Compatible Polymers & Resins
Compatible Substrates & Surfaces
Industrial Additives End Use
Plastics & Elastomers End Uses
Markets
Applications
Product Applications
  • Silicones: adhesion promoter and crosslinking agent for silicone sealants and putty compounds
  • Sol-gel systems: Due to its high crosslinking density, it is used as an additive in sol-gel systems. It can increase the chemical as well as mechanical stability of such coatings and primers. Dynasylan® BTSE is commonly used with other sol-gel precursors such as Dynasylan® 9265, Dynasylan® MTES, or Dynasylan® GLYEO. Especially scratch resistant hardcoats and corrosion protection primers are formulated with Dynasylan® BTSE. Resulting hydrophobic and high crosslink density silane layers.
  • Precursor for electronic materials: used as a precursor for low-κ dielectric materials and other inorganic materials
  • Filler treatment: coupling agent and surface modifier for mineral fillers in organic thermosets or duroplasts
  • PVD: Use as PVD-precursor for barrier coatings on plastics (plasma-activated), silane barriers against water and oxygen for plastic foils or films

Properties

Physical Form
Product Properties
  • It is also possible to construct an inorganic/organic network by adding silanes containing organofunctional groups (e.g. aminopropyl groups) and polymerizing with organic
  • precursors.
  • This principle makes it possible to obtain highly scratch- and abrasion-resistant coatings.
  • Dynasylan® BTSE is immiscible with water, so hydrolysis requires the use of a cosolvent such as ethanol.
  • Suitable catalysts are mineral acids or ammonia, or even acetic acid and amines.
  • Partial hydrolysis gives hydrolysates of Dynasylan® BTSE whose shelf life depends on the amount of water and solvent used.
  • The amount of water determines the activity of the hydrolysate.
  • Activity and shelf life are inversely proportional.
  • The correct choice of the amount of water can give hydrolysates which have a shelf life of up to a year.

Packaging & Availability

Packaging Type
Product Packaging

Dynasylan® BTSE is supplied in 25 kg or 180 kg drums.

Storage & Handling

Storage and Handling Conditions
  • Dynasylan® BTSE must be stored with exclusion of moisture.
  • In a sealed container, the product has a shelf-life of min. 12 months from delivery with no loss of quality.

Other

Boiling Point (SDS)
315.0 °C
Color (SDS)
Colorless to yellow
Density
0.95 g/cm³
Density (SDS)
0.95 g/cm³
Flash Point
113.0 °C
Flash Point (SDS)
113.0 °C
IATA/ICAO Emergency Response Guide
6L
IATA/ICAO Proper Shipping Name
Toxic liquid, organic, N.O.S.
IATA/ICAO UN Number
UN 2810
IMO/IMDG EmS Fire
F-A
IMO/IMDG EmS Spill
S-A
IMO/IMDG Proper Shipping Name
Toxic liquid, organic, N.O.S.
IMO/IMDG UN Number
UN 2810
Initial Boiling Point
315.0 °C
Insoluble in (SDS)
Water
Item Number
Odor (SDS)
Characteristic
Other Hazards
None.
Principal
Shelf Life
12.0 mo
USA/DOT Emergency Response Guide Number
153
USA/DOT Proper Shipping Name
Toxic liquids, organic, N.O.S.
USA/DOT UN Number
UN 2810
Shelf Life & Stability
ValueUnitsTest Method / Conditions
Shelf Life12.0 momo
Physical Properties
ValueUnitsTest Method / Conditions
Density0.95 g/cm³g/cm³DIN 51757 at 25°C
Flash Point113.0 °C°CDIN 51755
Initial Boiling Point315.0 °C°CDIN 51751
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Boiling Point (SDS)315.0 °C°Cat 1,011 mbar
Density (SDS)0.95 g/cm³g/cm³at 25°C
Flash Point (SDS)113.0 °C°C