Recently, the industry has noticed that DAMO (N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane, CAS 1760-24-3) is being widely used in glass fiber and glass fiber fabric composites. As a key interfacial coupling agent, it significantly improves the mechanical properties and durability of the materials. This silane contains two amino groups and three methoxy groups, forming strong chemical bonds between inorganic fibers and organic resins. Applications show that adding DAMO to carbon fiber or glass fiber reinforced plastics can improve bond strength, thermal and humidity aging resistance, and impact toughness. Furthermore, its low volatility and moderate viscosity make it easy to process and help reduce VOC emissions. This property is particularly important in cable sheathing, structural bonding, and high-performance composites, particularly in wind turbine blades and aviation components.

Industry companies are developing a combination of DAMO and water-based primers to further enhance the adhesion stability of the coating to the glass/metal substrate, reduce coating delamination, and enhance corrosion and weathering resistance. Industry Feedback: DAMO's diamine functional groups can cross-link with active groups in the resin, thereby improving the tensile and flexural strength of the final material.

Overall, the application of DAMO in glass fiber composites is becoming an important way to improve the composite's interfacial properties, safety, and service life.