triethoxysilane
2-(3,4-Epoxycyclohexyl)ethyltriethoxysilane (CAS 5089-70-3) is a bifunctional organosilane coupling agent featuring a reactive cycloaliphatic epoxide group at one end and hydrolyzable ethoxy groups attached to silicon at the other. The ethoxysilane functionality readily hydrolyzes in moisture to form reactive silanol groups that bind covalently to inorganic substrates such as silica, metals, and glass. Simultaneously, the ring-strained cycloaliphatic epoxy group readily reacts with organic resins including epoxies, acrylates, and polyurethanes. This dual reactivity creates a robust molecular bridge across organic-inorganic interfaces, substantially improving wet adhesion, mechanical strength, thermal resistance, and chemical durability in composite materials. Additionally, its cycloaliphatic structure provides superior UV stability and electrical insulation properties compared to linear epoxy silanes.
– Electronic Encapsulants & Sealants: Utilized in semiconductor packaging materials and epoxy molding compounds to enhance moisture resistance, thermal stability, and substrate adhesion.
– High-Performance Industrial Coatings: Added to industrial protective coatings, primers, and glass finishes to promote long-term adhesion, corrosion protection, and scratch resistance.
– Composite & Adhesive Formulations: Serves as an effective coupling agent in glass-reinforced composites and structural adhesives to maximize mechanical strength under humid conditions.
Product Name: triethoxysilane
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