Bionic Carbon Fiber Reinforced Epoxy Resin Composite with Eagle Feather Structure: Preparation and Mechanical Properties

The process began with the treatment of short carbon fibers using a liquid-phase oxidation method to improve wettability and bonding strength with the epoxy resin matrix. Following this, composites with varying carbon fiber content (0.1 wt.%, 0.2 wt.%, 0.3 wt.%, and 0.4 wt.%) were prepared and tested for tensile strength and impact toughness.

The preparation process involved mixing, stirring, and solidifying the resin with carbon fibers at specific temperatures. The mechanical properties were evaluated using a universal tensile tester and an impact testing machine, with fracture morphologies observed through scanning electron microscopy.