2-(3,4-Epoxycyclohexyl)ethyltriethoxysilane
2-(3,4-Epoxycyclohexyl)ethyltriethoxysilane, identified by CAS number 10217-34-2, is a high-performance bifunctional organosilane coupling agent. It features a reactive cycloaliphatic epoxy group and three hydrolyzable ethoxy groups. This unique chemical structure allows the molecule to bridge the gap between organic polymers and inorganic substrates, significantly enhancing the interfacial adhesion in composite materials. Unlike standard glycidoxy-functional silanes, the cycloaliphatic epoxy ring offers distinct reactivity profiles and improved thermal stability, making it suitable for demanding industrial environments.
In practical applications, this silane acts as a versatile crosslinking agent and surface modifier. It is particularly valued for its ability to improve the mechanical strength, electrical properties, and moisture resistance of finished products. The ethoxy groups undergo hydrolysis to form silanols, which then bond to hydroxyl groups on inorganic surfaces like silica or glass, while the epoxy group reacts with various resin matrices, ensuring a robust chemical link that withstands environmental stress and aging.
• In the field of electronic packaging and encapsulants, this silane is utilized to enhance the adhesion between epoxy molding compounds and semiconductor chips or lead frames. Its cycloaliphatic structure contributes to lower coefficient of thermal expansion (CTE) and superior electrical insulation properties, which are critical for maintaining the reliability of microelectronic devices under high-temperature and high-humidity conditions.
• It serves as a critical additive in high-performance coatings, sealants, and adhesives. By incorporating this silane, manufacturers can achieve exceptional adhesion to difficult substrates such as glass, ceramics, and various metals. It also improves the chemical resistance and weatherability of the coating film, preventing delamination and protecting the underlying material from corrosion and oxidative degradation over extended periods.
• The material is widely employed for the surface treatment of inorganic fillers and reinforcements, including silica, wollastonite, and glass fibers. When applied to these fillers, it facilitates better dispersion within the polymer matrix, reduces the viscosity of the resin mix during processing, and enhances the overall mechanical integrity, such as tensile and flexural strength, of the resulting composite materials.
• It is also used in the modification of specialized resin systems, including polyurethanes and acrylics, where the epoxy functionality can be leveraged for secondary crosslinking. This leads to improved abrasion resistance and toughness in industrial floorings and automotive topcoats, providing a durable finish that resists mechanical wear and chemical exposure.
Product Name: 2-(3,4-Epoxycyclohexyl)ethyltriethoxysilane
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