VANABIO® VS6611

Vinyltrimethoxysilane

VANABIO® VS6611, vinyltrimethoxysilane, is used as a polymer modifier via grafting reactions. The resulting pendant trimethoxysilyl groups can function as moisture-activated crosslinking sites. The Silane grafted polymer is processed as a thermoplastic and crosslinking occurs after fabrication of the finished article upon exposure to moisture.


VANABIO® VS6611 vinyl silane is the equivalent of Momentive's A-171, Dow's Z-6300, Wacker's  XL10, Evonik's Dynasylan VTMO, ShinEtsu's KBM-1003 silane.


VANABIO® VS6611

Technical Data



CAS No.

2768-02-7

EINECS No.

220-449-8

Formula

C5H12O3Si

Molecular Weight

148.2

Boiling Point

122°C [760mmHg]

Flash Point

28°C



Color and Appearance

Colorless transparent liquid

Density 25/25°C

0.960-0.970

Refractive Index

1.3905 [25°C]

Min. Purity

99.0%




Reactivity: In the presence of moisture the methoxy groups of VANABIO® VS6611 hydrolyze to produce methanol and reactive silanol (Si-OH) groups which can bond to a variety of inorganic substrates or react with each other to form siloxane bonds (Si-O-Si). The organophilic vinyl end of VANABIO® VS6611 can also react with a suitable polymer (activated by peroxide or radiation).


Application


  • VANABIO® VS6611 is suitable for the preparation of moisture-curing polymers, e.g. polyethylene. Silane crosslinked polyethylene is widely used as cable isolation, and sheathing mainly in low voltage applications as well as for hot water/sanitary silicone pipes and underfloor heating.


  • VANABIO® VS6611 is used as a co-monomer for the preparation of different polymers such as polyethylene or acrylics. Those polymers show an improved adhesion to inorganic surfaces and they can also be crosslinked with moisture.


  • VANABIO® VS6611 is used as an efficient adhesion promoter for various mineral-filled polymers, improving mechanical and electrical properties especially after exposure to moisture.


  • VANABIO® VS6611 is used to improve the compatibility of fillers with silicone polymers, leading to a better dispersibility, reduced melt viscosity and easier processing of filled plastics.


  • VANABIO® VS6611 is used to pretreat of glass, metals, or ceramic surfaces, improve the adhesion of coatings on these surfaces and corrosion resistance.


  • VANABIO® VS6611 is used as moisture scavenger. VANABIO® VS6611 reacts rapidly with water. This effect is used widely in sealants.


Packing and Storage


  • VANABIO® VS6611 vinyltrimethoxysilane is supplied in 190Kg steel drum or 950Kg IBC container.


  • In the unopened original container VANABIO® VS6611 (VTMO silane, CAS 2768-02-7) has a shelf life of one year in a dry and cool place.


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