Vinyl silanes are a class of vinyl-functional silane coupling agents that contain a reactive vinyl group (–CH=CH₂) bonded to a silicon atom bearing hydrolyzable alkoxy groups. This dual functionality allows vinyl silanes to chemically link inorganic substrates with organic polymer systems, particularly those that cure or crosslink via free-radical or peroxide mechanisms.
They are widely used in polyolefins, rubber, wire & cable compounds, sealants, and crosslinked polymer systems, where they play a critical role in improving adhesion, durability, and crosslinking efficiency.
Siliconchemicals Vinyl Silanes are a range of vinyl-functional silane coupling agents designed for polymer systems that rely on free-radical reactions, silane grafting, or moisture-induced crosslinking. By combining a reactive vinyl group with hydrolyzable alkoxy silane functionality, vinyl silanes enable effective coupling between organic polymers and inorganic substrates. They are widely used in polyolefin modification, wire and cable compounds, rubber formulations, sealants, and moisture-curable systems, where controlled crosslinking, adhesion, and long-term durability are required.
| Product Code | Chemical Name | CAS No. | Molecular Formula | Vinyl Type | Structure Type | Product Form | Typical Content | Typical Applications |
|---|---|---|---|---|---|---|---|---|
| AS-V151 | Vinyltriethoxysilane | 78-08-0 | C8H18O3Si | Vinyl-functional | Triethoxy | Neat liquid | ≥97% | Silane-crosslinked polyolefins, wire & cable compounds |
| AS-V171 | Vinyltrimethoxysilane | 2768-02-7 | C5H12O3Si | Vinyl-functional | Trimethoxy | Neat liquid | ≥97% | Polyolefin grafting, moisture-curable systems |
| AS-V2171 | Vinylmethyldimethoxysilane | 16753-62-1 | C5H14O2Si | Vinyl-functional | Methyldimethoxy | Neat liquid | ≥96% | Rubber modification, flexible silane-crosslinked systems |
| AS-V172 | Vinyltri(β-methoxyethoxy)silane / Vinyltris(2-methoxyethoxy)silane | 1067-53-4 | C14H30O6Si | Vinyl-functional | Polyether alkoxy | Neat liquid | ≥95% | Wire & cable insulation, low-volatility crosslinking |
| AS-V174 | Vinyltri(isopropenyloxy)silane | 15332-99-7 | C11H24O3Si | Vinyl-functional | Isopropenyloxy | Neat liquid | ≥95% | High-temperature crosslinking, specialized polymer systems |
Product List
Vinyl silanes are a class of vinyl-functional silane coupling agents used primarily in polymer systems that undergo free-radical grafting, silane crosslinking, or moisture-curing reactions. By combining a reactive vinyl group with hydrolyzable alkoxy functionality, vinyl silanes enable durable coupling between organic polymers and inorganic substrates, while also participating directly in polymer network formation.
They are widely applied in polyolefin modification, wire and cable compounds, rubber formulations, sealants, and construction materials, where controlled crosslinking and long-term durability are required.
The Vinyl Silanes portfolio typically includes:
This range supports a wide variety of processing routes, including peroxide-initiated grafting and moisture-induced silane crosslinking.
From a functional standpoint, vinyl silanes can be classified as:
Selection is typically guided by polymer chemistry, grafting method, curing mechanism, processing temperature, and long-term performance targets.
Siliconchemicals Vinyl Silanes are vinyl-functional silane coupling agents designed for silane grafting, moisture-induced crosslinking, and durable polymer–filler interfaces. By combining reactive vinyl functionality with hydrolyzable alkoxy groups, they enable efficient polymer modification while improving adhesion, mechanical strength, and long-term environmental resistance. These characteristics make them well suited for wire & cable compounds, silane-crosslinked polyolefins, rubber formulations, and construction materials, where controlled processing and consistent performance are required.
Siliconchemicals supports epoxy silane selection based on substrate chemistry, curing system, and processing conditions.
Contact us for technical data, dosage guidance, or application evaluation.
Vinyl silanes are composed of two complementary functional elements within a single molecule:
This mechanism delivers:
Vinyl silanes therefore function as key enablers of silane-crosslinked and graft-modified polymer systems, rather than simple additives.
Vinyl silanes provide functional control over polymer crosslinking and polymer–filler interfaces, delivering the following performance advantages:
These advantages make vinyl silanes essential in wire & cable compounds, silane-crosslinked polyolefins, rubber formulations, and other performance-critical polymer systems where durability and processing stability are required.
Vinyl silanes are widely used in polymer systems where silane grafting, crosslinking, and durable polymer–filler interaction are required, including:
Vinyl silanes are especially effective in applications where controlled crosslinking and long-term performance are critical to material reliability.
Vinyl silanes are used to enable silane grafting, moisture-induced crosslinking, and durable polymer–filler interfaces in polymer systems where conventional additives are insufficient.
In summary, vinyl silanes are essential when controlled crosslinking, durability, and long-term reliability are required in wire & cable, polyolefin, rubber, and moisture-curable polymer systems.
Selecting the appropriate vinyl silane requires aligning polymer chemistry, grafting mechanism, processing conditions, and performance requirements. The following technical considerations provide a practical selection framework.
Determine the base polymer (e.g. polyethylene, polypropylene, elastomers) and the grafting approach, typically peroxide-initiated free-radical grafting. Vinyl silanes are most effective in systems designed for silane crosslinking or graft modification.
The alkoxy group controls hydrolysis rate, volatility, and processing stability:
Environmental humidity, extrusion temperature, and residence time should be considered.
In silica- or mineral-filled systems, vinyl silanes help improve polymer–filler adhesion and dispersion. Modified alkoxy structures may offer better compatibility with specific fillers or processing conditions.
Define required crosslink density, mechanical properties, and long-term durability. Applications demanding higher thermal stability or extended service life may benefit from lower-volatility or specialty vinyl silane structures.
Final selection should be validated through pilot extrusion, grafting efficiency evaluation, and mechanical or aging tests under realistic processing and service conditions.
In summary, choosing the right vinyl silane involves balancing grafting efficiency, alkoxy reactivity, processing stability, and durability requirements to achieve reliable performance in silane-crosslinked and graft-modified polymer systems.
Packaging: 500 g / 1 kg / 5 kg / 25 kg / 200 kg drums / 1000L IBC container (Customized packaging is available).
Selecting the right silane coupling agent is only the beginning. Successful implementation depends on a reliable end-to-end delivery process—from technical evaluation and product selection to production, quality control, and final shipment. Our integrated support model ensures consistent performance, stable supply, and efficient execution across global applications.
From technical selection to final shipment, we deliver silane coupling agents as a complete, reliable solution—not just a chemical product.
Contact us to discuss your application requirements, request samples, or initiate a customized silane supply program.
Disclaimer
“The information provided herein is based on general industry experience and is intended for reference purposes only. Actual performance and optimal usage conditions may vary depending on formulation, processing methods, substrate characteristics, and end-use requirements. Users are responsible for conducting their own tests and evaluations to determine suitability for their specific applications. No warranty, express or implied, is made regarding the completeness, accuracy, or applicability of this information.”
Selecting the right silane coupling agent is only the first step. Achieving optimal performance often requires application-specific evaluation and formulation optimization. Our technical team provides comprehensive support to ensure successful implementation across diverse material systems.
From Standard Supply to Customized Requirements
Built on technical expertise, manufacturing capability, and reliable supply
Supports batch quality verification & application-oriented testing, ensuring consistent performance & reliable product quality.
Stable, scalable manufacturing with standardized processes, supporting both regular supply and bulk industrial demand.
Products are stored under controlled conditions with standardized packaging, enabling efficient order fulfillment and reliable global delivery.
Clear communication and application-focused support, helping customers select suitable products and streamline procurement.
Navigate the complexities of the global silane market. This definitive report provides actionable insights, vetted supplier landscapes, and strategic sourcing methodologies to optimize your supply chain in the year ahead.
