SiSiB® PC8131 Phenyltrimethoxysilane

SiSiB PC8131
Phenyltrimethoxysilane
SiSiB PC8131 is a colorless, low-viscosity liquid. SiSiB PC8131 is regarded as trifunctional since all three alkoxy groups can hydrolyze.
SiSiB PC8131 phenylsilane also contains a phenyl group that exhibits excellent thermal stability and brings flexibility to sol-gel coating systems. It is the quivalent of Dow's Z-6124, ShinEtsu's KBM-103 silane.
Technical Data
CAS No. 2996 92 1
EINECS No. 221-066-9
Formula C9H14SiO3
Molecular Weight 198.29
Boiling Point 211°C [760mmHg]
Flash Point 92°C
Color and Appearance Colorless transparent liquid
Density 25/25°C 1.064
Refractive Index 1.4734
Active Content Min. 99.0%
Application
SiSiB PC8131 is used to modify the suface of inorganic fillers such as wollastonite and aluminum trihydroxide. It makes the surface of these inorganic fillers more hydrophobic and thus increases their dispersability in mineral-filled silicone polymers. SiSiB PC8131 is especially suited for polymers that are processed at elevated temperatures. SiSiB PC8131 reduces the viscosity of the polymer melt.
In many sol-gel applications SiSiB PC8131 is partially hydrolyzed to form a preproduct that can be further crosslinked using temperature. This pre-hydrolysis is often made in conjunction with alkyl silanes (SiSiB PC5132) or other sisib silanes (e.g. SiSiB PC3100), silicic acid esters, or even an aqueous silica sol.
SiSiB PC8131 reacts faster with water than SiSiB PC8132.
Packing and Storage
SiSiB PC8131 phenyltrimethoxysilane is supplied in 200Kg steel drum.
In the unopened original container SiSiB PC8131 phenyltrimethoxysilane has a shelf life of one year in a dry and cool place.
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