Material Analysis
14 visualizações
Uneven Conductivity of Carbon Fiber Reinforced PEEK
Fenómeno do problema
The surface resistivity of carbon fiber reinforced PEEK products is unevenly distributed, local conductive paths are poor, and electromagnetic shielding performance test results fluctuate greatly.
Análise das causas
Carbon fibers orient during filling flow, making the conductive network anisotropic along the orientation direction; conductive paths are interrupted in areas of fiber breakage and poor dispersion; fiber arrangement is most disordered at weld lines where conductivity is worst.
Solução
①Optimize the injection speed profile to reduce fiber breakage; ②Design the gate to guide uniform fiber orientation; ③Verify fiber length retention and dispersion; ④Arrange conductivity test points covering weld lines and ends.
Conclusão principal
The conductivity of carbon fiber PEEK is directly related to fiber morphology management; orientation anisotropy is an inherent characteristic, and test evaluation must be carried out by zones; gentle shear protects fiber length.
Isto foi útil?
0 pessoas acharam isto útil
Obrigado pelo seu comentário!