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
 |
SiSiB® PC2510 3-Ureidopropyltrimethoxysilane | SiSiB® PC2510, gamma-Ureidopropyltrimethoxysilane, is a 100% active ureido silane that may be used to promote adhesion between a wide range of ... |
 |
SiSiB® PC5881 | Octadecylsilane SiSiB® PC5881 is a long-chain alkyl silane, commonly called OTMS. It is easy to be dissolved in ordinary organic solvent, e.g.... |
 |
SiSiB® PC12010-2 | SiSiB® PC12010-2 is low molecular weight siloxane polymer, colorless, odorless, non-toxic and non-irritating. For the excellent spreading abili... |
 |
SiSiB® PC11256 | Acrylates/Tris(Trimethylsiloxy)Silylpropyl Methacrylate Copolymer (and) Cyclomethicone SiSiB® PC11256 is a mixture of high molecular weight ac... |
 |
SiSiB® PC5430 Tetrapropoxysilane | SiSiB® PC5430 Tetrapropoxysilane SiSiB® PC5430, [also called n-Propyl Silicate] is used as a cross-linking agent for silicon rubber, and ... |
