Abstract
Core–shell structured magnetic carbon nanotubes (CNTs-Fe3O4) coated with hyperbranched copper phthalocyanine (HBCuPc) (HBCuPc@CNTs-Fe3O4) hybrids were prepared by the solvent-thermal method. The results indicated that the HBCuPc molecules were decorated on the surface of CNTs-Fe3O4 through coordination behavior of phthalocyanines, and the CNTs-Fe3O4 core was completely coaxial wrapped by a functional intermediate HBCuPc shell. Then, polymer-based composites with a relatively high dielectric constant and low dielectric loss were fabricated by using core–shell structured HBCuPc@CNTs-Fe3O4 hybrids as fillers and polyarylene ether nitriles (PEN) as the polymer matrix. The cross-sectional scanning electron microscopy (SEM) images of composites showed that there is almost no agglomeration and internal delamination. In addition, the rheological analysis reveals that the core–shell structured HBCuPc@CNTs-Fe3O4 hybrids present better dispersion and stronger interface adhesion with the PEN matrix than CNTs-Fe3O4, thus resulting in significant improvement of the mechanical, thermal and dielectric properties of polymer-based composites.
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Acknowledgement
The authors are thankful for the financial support from the National Natural Science Foundation of China (Project No. 51373028), the Sichuan University of Science and Engineering Talent Introduction Project (Nos. 2016RCL35, 2015RC56) and Material Corrosion and Protection Key Laboratory of Sichuan Province Open Fund Projects (2016CL16).
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Pu, Z., Zhong, J. & Liu, X. Composites Based on Core–Shell Structured HBCuPc@CNTs-Fe3O4 and Polyarylene Ether Nitriles with Excellent Dielectric and Mechanical Properties. J. Electron. Mater. 46, 5519–5530 (2017). https://doi.org/10.1007/s11664-017-5641-3
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DOI: https://doi.org/10.1007/s11664-017-5641-3