Bifunctional silane coupling agent with two hydrolyzable trimethoxy groups per molecule.
Provides enhanced covalent bridging between organic polymers and inorganic substrates (e.g., glass, silica, metals).
Offers superior hydrolytic stability compared to trialkoxysilanes with shorter alkyl spacers.
Enables improved mechanical properties—including tensile strength, modulus, and moisture resistance—in filled composites.
Compatible with a broad range of resins including epoxies, polyurethanes, acrylics, and phenolics.
Reinforcement of silica-filled silicone rubber for high-performance seals and gaskets.
Surface modification of nanosilica and fumed silica in adhesive and sealant formulations.
Enhancement of glass fiber–reinforced thermoset composites (e.g., wind turbine blades, automotive parts).
Moisture-cure primers and adhesion promoters for metal and glass substrates.
Stabilization of colloidal silica dispersions used in coatings and catalyst supports.
| Chemical Type | Bifunctional alkoxy silane |
| Chemical Name | 1,2-Bis(trimethoxysilyl)ethane |
| Product Form | Liquid |
| Appearance | Clear, colorless to pale yellow liquid |
| Primary Applications | Coupling agent for silica/glass fillers, adhesion promoter, surface modifier |
| Key Features | Two reactive Si–OCH₃ groups, ethylene bridge, low volatility, hydrolytically stable |
| Storage Conditions | Store in tightly closed containers under dry, inert atmosphere at 15–25°C |
| Handling Precautions | Use in well-ventilated areas; avoid contact with skin/eyes; consult SDS before use |
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