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Vinyltrimethoxysilane
| Parameter | Value / Range |
|---|---|
| Appearance | Colorless Transparent Liquid |
| Density(ρ20°C, g/cm³） | 0.9718±0.0050 |
| Refractive Index(n25/D) | 1.3925±0.0050 |
| Purity (by GC,%) | 99min |
Manta V31 is a bifunctional organosilane possessing a reactive vinyl group and a hydrolyzable trimethoxysilyl group . The dual nature of its reactivity allows it to bind organically to polymers via radical grafting, while simultaneously creating a moisture-curable crosslinked siloxane network.
It is an industry-standard, high-volume additive primarily used for the moisture crosslinking of polyethylene (XLPE) in the wire and cable industry, and acts as a highly efficient moisture scavenger in advanced sealant formulations.
It is equivalent to industry benchmarks such as Momentive Silquest A-171, Evonik Dynasylan VTMO, WACKER GENIOSIL XL 10, and Shin-Etsu KBM-1003.
Manta V31 is a critical raw material with two primary industrial applications:
Manta V31 is widely used to modify polyethylene (PE) and other polymers. Using a peroxide initiator in an extruder, the vinyl group grafts to the polymer backbone. The resulting grafted polymer is then shaped (e.g., cable jacketing, wire insulation, PEX-b pipes) and exposed to moisture/hot water. This causes the trimethoxysilyl groups to hydrolyze and condense, forming a robust Si-O-Si crosslinked, thermoset network.
Due to its rapid reaction with water, V31 is extensively utilized as a moisture scavenger in one-part moisture-curing formulations (such as Silane-Modified Polymers/MS, Polyurethanes, and Silicones). It consumes trace amounts of moisture during compounding and packaging, drastically improving the shelf-life and preventing premature gelation or outgassing in the cartridge.
The reactive vinyl group allows V31 to copolymerize with acrylics or vinyl acetate monomers during emulsion polymerization. This produces silane-modified, water-borne dispersions that exhibit dramatically improved wet scrub resistance, weatherability, and crosslinking density upon drying.
Acts as a highly effective surface modifier for inorganic flame-retardant fillers, such as Aluminum Trihydroxide (ATH) and Magnesium Hydroxide (MDH), utilized in Halogen-Free Flame Retardant (HFFR) cables. It improves filler dispersion, water resistance, and mechanical strength in highly filled polymer composites.
Functions as an excellent adhesion promoter and coupling agent specifically tailored for unsaturated polyesters and acrylic resin systems, and is frequently employed as a sizing agent for fiberglass composites.
Benefits of Silane Crosslinking (vs. Uncrosslinked Polymers)
Advantages of Silane Crosslinking over Radiation or Peroxide Methods
Highly useful with heavily filled composites and applicable to all PE densities and copolymers.
Application Areas
Packaging
In 20kg pail, 190kg drum and 950kg IBC
Safety and Storage
Keep away from heat and open flame. When stored at or below 25°C in the original unopened containers, this product has a usable life of 24 months from the date of production (200L drum).
Manta 931 is a fundamental alkyl-alkoxy organosilane. Featuring a non-polar methyl group and three highly reactive methoxy groups
Manta A110 is an amino-functional silane containing three hydrolyzable ethoxy groups.
Manta A111 is a primary amino-functional silane containing three hydrolyzable methoxy groups.
From 1-gram laboratory trials to 1,000+ kg production runs. Full CoA, SDS, REACH/TSCA documentation included. Laboratory samples available within days.
