Dynasylan® BTSE is a 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. The rate of gelation depends on the concentration of catalyst and water.
Typical Applications
Dynasylan® BTSE is a dipodal alkylsilane, and as such can be used in many diverse applications. It is often used as crosslinking agent for organic and inorganic networks.
Its main applications are:
Silicones:
Sol-gel systems:
Precursor for electronic materials:
Filler treatment:
PVD:
Its main applications are:
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.
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
Benefits at a glance
Especially scratch resistant hardcoats and corrosion protection primers are formulated with Dynasylan® BTSE. Resulting hydrophobic and high crosslink density silane layers.
Product Details
Technical Data Sheets
Further Information
Storage:
Dynasylan® BTSE must be stored with exclusion of moisture.
Packaging:
Dynasylan® BTSE is supplied in 25 kg, 180 kg drums and 900 kg IBC container.
Shelf life:
In a sealed container, Dynasylan® BTSE has a shelf-life of min. 12 months from delivery with no loss of quality.