SiSiB® PC7970 Propyltriacetoxysilane
SiSiB® PC7970
Propyltriacetoxysilane
SiSiB® PC7970 is a colourless to yellowish liquid, not miscible with water, decomposes with water and moisture under formation of acetic acid.
Technical Data
|
CAS No. |
17865 07 5 |
|
EINECS No.: |
241-816-9 |
|
Formula |
C9H16O6Si |
|
Molecular Weight |
|
|
Boiling Point |
236°C [760mmHg] |
|
Flash Point |
81°C |
|
Color and Appearance |
Colorless or yellowish clear liquid |
|
Density 25/25°C |
|
|
Refractive Index [20°C] |
|
|
Active Content |
Application
SiSiB® PC7970 propyltriacetoxysilane, PTAS silane, is used as a raw material (crosslinker) for acetoxy crosslinking RTV-1 sealants.
Acetoxy silanes are more reactive than alkoxy silanes. Acetoxy silanes are frequently used as one-component mixtures to make RTV-1 silicone sealants. These mixtures have an excess of multi-functional acetoxy silane added to silanol-terminated PDMS, which results in a PDMS chain with acetoxy groups at the ends.
When this compound is exposed to moisture some acetoxy groups are hydrolyzed and self-condense or react with other acetoxy and rapid crosslinking takes place. Acetic acid formation is one of the driving forces of this reaction.
As one of silicone oil suppliers, we can provide high quality dimethyl silicone oilfor sale, if you are interested, please leave us a message.
Send product request
Other supplier products
 |
POWSIL-59110 Super Soft Silicone Softener | POWSIL-59110 is a super soft textile softener.It contains a revolutionary & new generation of silicone molecule that delivers a voluminous and ... |
 |
Hydrophobic Fumed Silica | SiSiB hydrophobic silicas are treated with reactive silanes or silicone fluids, like chlorosilanes, hexamethyldisilazane and polydimethysiloxane. ... |
 |
Silazanes | SiSiB SILICONES is a worldwide leading manufacturer of silanes and silicones for over 30 years. SiSiB is worldwide leading silane manufacturerof o... |
 |
SiSiB® PC5310 | SiSiB® PC5310 Trimethylchlorosilane SiSiB® PC5310 is a clear, colourless, caustic and highly flammable liquid with a pungent odour. Te... |
 |
SiSiB® PC5222 | SiSiB® PC5222 Dimethyldiethoxysilane SiSiB® PC5222 is a monomeric alkylalkoxysilane. It is a clear to straw liquid. Technical Data ... |
