Dynasylan® PTEO

Dynasylan® PTEO an alkyltrialkoxysilane is important component in sol­gel systems. Dynasylan® PTEO is a colorless, low­viscosity liquid. Dynasylan® PTEO is regarded as trifunctional since all three alkoxy groups can hydrolyze. Additionally Dynasylan® PTEO contains a propyl group that adds a hydrophobic character to the coatings. Hydrolysis leads to silanol groups which, in a subsequent condensation reaction, form very stable siloxane bonds (­Si­O­Si­). Condensation occurs parallel to hydrolysis once a certain amount of silanol groups have been formed. The absolute and relative rates of hydrolysis and condensation depend on a number of factors. The most important factors include pH, concentration, solvent, temperature and the catalyst.

Principal: Evonik Corporation Silanes

Functions: Surface Modifier

Chemical Family: Silanes

Features: Low Viscosity, Mar Resistance, UV Stability

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Enhanced TDS

Identification & Functionality

Blend
No
CASE Ingredients Functions
Chemical Family
Chemical Name
Function
Surface Modifier
Product Code
MITM04177
Single Ingredient
Yes
Technologies
Product Families

Features & Benefits

Applications & Uses

Markets
Applications
Application Information

In some sol­gel applications Dynasylan® PTEO is partially hydrolyzed to form a preproduct that can be further crosslinked using temperature. This pre­hydrolysis often is done in conjunction with other organofunctional silanes, silicic acid esters or even an a aqueous silica sol. This pre­product can be modified even further by addition of organic resins or inorganic nanoparticles such as AEROSIL®. It is also possible to construct an inorganic/organic network by adding silanes containing organofunctional groups (e.g. aminopropyl groups) and organic resins. The mixture is then cured using standard organic methods. In this way it is possible to obtain mar resistant coatings having a higher UV­stability than traditional organic coatings. This can also lead to more flame resistant materials than using traditional resins. Dynasylan® PTEO reacts slower with water than Dynasylan® PTMO and often a hydrolysis catalyst (mineral acids or ammonia, or even acetic acid and amines) must be added to hydrolyze at appreciable rates. Hydrolysis can also be furthered by adding a cosolvent such as ethanol.

Properties

Physical Form

Regulatory & Compliance

Packaging & Availability

Packaging Type
Product Packaging

Dynasylan® PTEO is sold in plastic lined 25 kg and 180 kg steel drums.

Storage & Handling

Storage Conditions

Dynasylan® PTEO must be stored with exclusion of moisture.

Other

Boiling Point (SDS)
175.0 °C
Color (SDS)
Colorless
Density
0.89 g/cm³
Density (SDS)
0.89 g/cm³
Flash Point
57.0 °C
Flash Point (SDS)
57.0 °C
Flash Point (SDS)
57.0 °C
IATA/ICAO Emergency Response Guide
3L
IATA/ICAO UN Number
UN 1993
IMO/IMDG EmS Fire
F-E
IMO/IMDG EmS Spill
S-E
IMO/IMDG UN Number
UN 1993
Immiscible In (SDS)
Water
Initial Boiling Point
175.0 °C
Item Number
Odor (SDS)
Aromatic
Other Hazards
None known
Principal
Shelf Life
12.0 mo
USA/DOT Proper Shipping Name
Flammable liquid, N.O.S. (propyltriethoxysilane)
USA/DOT UN Number
UN 1993
Vapor Pressure (SDS)
80.0 Pa
Shelf Life & Stability
ValueUnitsTest Method / Conditions
Shelf Life12.0 momo
Physical Properties
ValueUnitsTest Method / Conditions
Density0.89 g/cm³g/cm³DIN 51755 At 20°C
Flash Point57.0 °C°CDIN 51755
Initial Boiling Point175.0 °C°CDIN 51751
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Boiling Point (SDS)175.0 °C°CDIN 51751 at 1013 hPa
Density (SDS)0.89 g/cm³g/cm³DIN 51757 at 20°C
Flash Point (SDS)57.0 °C°CEN ISO 2719
Flash Point (SDS)57.0 °C°CPensky-Martens Closed Cup (PMCC)
Vapor Pressure (SDS)80.0 PaPaInternal Method at 20°C