Hybrid network structure and thermal conductive properties in poly(vinylidene fluoride) composites based on carbon nanotubes and graphene nanoplatelets
| Autor: | Yu-tong Zhang, Yong Wang, Xi-jia Chen, Wen-yan Wang, Ting Lin, Yan-jun Xiao, Jing-hui Yang, Zuowan Zhou |
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| Rok vydání: | 2016 |
| Předmět: |
Materials science
Nucleation 02 engineering and technology Carbon nanotube 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences law.invention chemistry.chemical_compound Crystallinity Thermal conductivity chemistry Mechanics of Materials law Electrical resistivity and conductivity Ceramics and Composites Crystallization Composite material 0210 nano-technology Ternary operation Fluoride |
| Zdroj: | Composites Part A: Applied Science and Manufacturing. 90:614-625 |
| ISSN: | 1359-835X |
| DOI: | 10.1016/j.compositesa.2016.08.029 |
| Popis: | A small quantity of carbon nanotubes (CNTs) and graphene nanoplatelets (GNPs) were introduced into the poly(vinylidene fluoride) (PVDF)/GNP and PVDF/CNT composites, respectively, to prepare the corresponding ternary PVDF/CNT/GNP and PVDF/GNP/CNT composites. The results demonstrated that adding CNTs into the PVDF/GNP composites greatly promoted the formation of the hybrid network structure of fillers. This was much different from the scenario that adding GNPs into the PVDF/CNT composites. GNPs and CNTs exhibited excellent nucleation effects for the crystallization of PVDF matrix; however, the variation of the PVDF crystallinity was small. Adding CNTs into the PVDF/GNP composites greatly enhanced the electrical conductivity of the PVDF/CNT/GNP composites. This was also different from the scenario of the PVDF/GNP/CNT composites. Furthermore, the PVDF/CNT/GNP composites exhibit higher thermal conductivity and higher synergistic efficiency compared with the PVDF/GNP/CNT composites. The conductive mechanisms and the synergistic effects of the ternary composites were then analyzed. |
| Databáze: | OpenAIRE |
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