Carbon fiber composite materials have become the material of choice for lightweighting in aerospace, rail transit, high-performance automobiles, sports equipment and other fields due to their excellent properties of being "light as a feather and as strong as steel". However, the carbon fiber reinforced material itself needs to be impregnated and solidified with resin, and the connection and repair between its components place extreme requirements on bonding technology. The carbon fiber series epoxy adhesives specially developed for carbon fiber applications are the "heroes behind the scenes" that realize their potential and ensure their reliability.

In the manufacturing of carbon fiber composite materials, epoxy adhesive first serves as the core component of the matrix resin or adhesive film (Film Adhesive). It needs to have excellent wettability, be able to completely wrap each carbon fiber filament, eliminate air bubbles, and form a strong interface bond after curing, so as to efficiently transfer the load borne by the fiber and give full play to the high strength characteristics of carbon fiber. For different molding processes (such as prepreg autoclave, vacuum introduction, molding, etc.), the viscosity, gel time, and curing temperature curve of the adhesive need to be accurately designed.

In the field of structural bonding and repair, the role of special epoxy structural adhesive for carbon fiber is crucial. Because carbon fiber laminates are anisotropic and surface inert, ordinary adhesives have difficulty forming reliable connections. This series of adhesives can provide extremely high shear strength and peel strength through special toughening technology and surface adaptors. Its performance often exceeds that of traditional riveting or bolting connections, and it can avoid damage and stress concentration caused by drilling to fibers. Whether it is the splicing of aircraft wing skins or the assembly of F1 racing monocoques, they all rely on such high-performance adhesives. For damaged carbon fiber parts, using matching repair glue and carbon fiber cloth to repair them is an economical and effective way to restore their structural integrity. With the explosion of new energy vehicles' demand for lightweight vehicle bodies and the bonding challenges brought by the large-scale wind turbine blades, carbon fiber series epoxy adhesives are ushering in a broader development space, and their technological breakthroughs will continue to push the application boundaries of composite materials to deeper and wider areas.