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Effect of Cu-coated short carbon fibers on the mechanical and electrical properties of the epoxy composites

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Abstract

In this study, short carbon fiber (SCF)-reinforced epoxy composites were prepared through changing of the fiber content (0.1–0.7 wt%). An electrodeposition process was used to produce Cu-coated SCFs. To investigate the effect of Cu-coated SCFs on the composite mechanical and electrical properties, we prepared two kinds of reinforcements: SCFs treated by 400 °C (400 °C-treated SCFs) and Cu-coated SCFs (Cu-SCFs). Fracture characteristics of the composites revealed that the Cu coating and the epoxy matrix had a better interface, meaning that the tensile and bending strength results were better in epoxy/Cu-SCFs composites than those in epoxy/400 °C-treated SCFs composites. The 400 °C-treated SCFs decreased the electrical resistivity of the epoxy composites compared to the pure epoxy. However the epoxy/Cu-SCFs composites had lower electrical resistivity than epoxy/400 °C-treated SCFs with the same fiber content.

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Correspondence to Lei Liu or Bin Shen.

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Li, W., Liu, L., Shen, B. et al. Effect of Cu-coated short carbon fibers on the mechanical and electrical properties of the epoxy composites. Macromol. Res. 20, 366–371 (2012). https://doi.org/10.1007/s13233-012-0041-2

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  • DOI: https://doi.org/10.1007/s13233-012-0041-2

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