Silane

Vinyltrimethoxysilane

Polymer Modification Vinyltrimethoxysilane is used to modify polyethylene and other polymers by grafting its vinyl group to the polymer backbone using a radical initiator, such as peroxide.

Product details

Chemical Structure:
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The Equivalent Products to other Manufacturers:

Momentive

Dow Corning

ShinEtsu

Evonik

Wacker

Silquest A-171

Z-6300

KBM-1003

VTMO

GENIOSIL XL 10

Typical Physical Properties


Chemical Name:    

Vinyltrimethoxysilane

CAS No.:

2768-02-7

EINECS No.:

220-449-8

Formula:

C5H12O3Si

Appearance:

Colorless transparent liquid

Density(ρ20, g/cm3):

0.9718 ± 0.0050

Refractive Index(n25D):

1.3925 ± 0.0050

Purity

99%

Applications:
Polymer Modification
Vinyltrimethoxysilane is used to modify polyethylene and other polymers by grafting its vinyl group to the polymer backbone using a radical initiator, such as peroxide. This provides a polymer with pendant trimethoxysilyl groups that may be used as moisture-activated crosslinking sites via hydrolysis of the alkoxy groups followed by condensation of the resulting silanols.
Crosslinking of Silane-Grafted Polymers.
The reaction of Silane-grafted polyethylene to form a crosslinked or vulcanized polyethylene uses water to form the crosslinks. This technology is widely used around the world for commercial applications in wire and cable insulation, tubing, and other similar uses.
The basic reaction sequence is as follows: polyethylene is reacted (grafted) with vinyltrimethoxysilane, using a peroxide initiator, in an extruder. The grafted polyethylene is then formed into a finished product, such as cable jacketing, wire insulation, or pipe. The forming step is usually done by a second extrusion, during which a catalyst for the moisture-cure step is added. Finally, the formed article is exposed to moisture or hot water to cause hydrolysis of the Silane and condensation to form crosslinks via Si-O-Si bond formation.
Benefits of Crosslinking
Higher maximum use temperature
Reduced deformation under load (creep)
Improved chemical resistance
Superior environmental stress crack resistance
Increased abrasion resistance
Improved impact strength
Memory characteristics (shrink film, tubing)
Improved impact strength
Advantages of Silane Crosslinking over Radiation or Peroxide Crosslinking
Low capital investment
Low operating (energy) costs
Higher productivity
Processing versatility
Thick, thin, or variable thicknesses possible
Complex shaps possible
Wilder processing latitude (control of premature crosslinking)
Useful with filled composites
Applicable to all polyethylene densities and copolymers.
Packing
210LIron Drum: 190kg/drum
1000L IBC Container: 950kg/container


Focuschem Trading offers high quality Silane made in China at a competitive price. We are one of the most professional manufacturers and suppliers in this field and provide the best solution for your beauty and health. Please feel free to contact us.

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