A high-toughness hybrid fiber composite material and a method for producing the same
By using alternating layers of carbon fiber and basalt fiber with multi-angle layup design, combined with a nano-modified resin matrix, the problems of easy delamination under impact load and difficulty in achieving both salt spray corrosion resistance in fiber-reinforced composite materials are solved, achieving a balance between high toughness and corrosion resistance, making it suitable for harsh salt spray environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- DONGYING POWER SUPPLY COMPANY STATE GRID SHANDONG ELECTRIC POWER
- Filing Date
- 2026-06-01
- Publication Date
- 2026-07-17
AI Technical Summary
Existing fiber-reinforced composite materials are prone to delamination and damage propagation under impact loads, and it is difficult to achieve both salt spray corrosion resistance and impact toughness. As a result, impact toughness and corrosion resistance cannot be improved in a coordinated manner.
By employing an alternating layering and multi-angle layup design of carbon fiber and basalt fiber, combined with a nano-modified resin matrix, the material's impact toughness and salt spray corrosion resistance are enhanced through crack deflection, multi-layer fiber bridging, and synergistic deformation of multi-angle fibers. Carbon nanotubes provide microscopic bridging and interfacial stitching at the interface, strengthening the toughness of the resin matrix.
It significantly improves the impact toughness and salt spray corrosion resistance of composite materials, with an impact toughness retention rate of ≥90% and a water absorption rate of ≤1.5%, maintaining long-term stable service in salt spray environment.
Smart Images
Figure CN122402014A_ABST