Abstract
Abstract In this work, three kinds of boron nitride (BN) particles with different sizes were combined with carbon nanotubes (CNTs) to prepare the poly(vinylidene fluoride) (PVDF) composites. The dispersion states and the hybrid network structure of fillers were investigated. The results showed that the dispersion states of CNTs were greatly influenced by the size of BN particles. Relatively high density of hybrid network structure of fillers was obtained in the ternary composites containing the smallest BN particles (0.16 μm), while the composites containing the biggest BN platelets (22.02 μm) showed the low density of the hybrid network structure. Thermal conductivity measurements showed that BN particles with moderate size (8.70 μm) were the most appropriate filler to construct the highly efficient thermal conductive path with CNTs and in this condition, the ternary composites exhibited the highest thermal conductivity.
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