Structures and Physical Properties of Multi-Walled Carbon Nanotube-Filled PVDF Thermoplastic Composites

Author(s):  
Dong Wook Chae ◽  
Young Wan Nam ◽  
Seung Sang Hwang ◽  
S.M. Hong
2019 ◽  
Vol 6 (6) ◽  
pp. 065413 ◽  
Author(s):  
Mohammad Reza Sanaee ◽  
Habib Danesh Manesh ◽  
Kamal Janghorban ◽  
Reyhaneh Sanaee ◽  
Leila Kooshesh ◽  
...  

2007 ◽  
Vol 124-126 ◽  
pp. 1117-1120 ◽  
Author(s):  
Dong Wook Chae ◽  
Young Wan Nam ◽  
Seung Sangh Wang ◽  
S.M. Hong

Poly(vinylidene fluoride) (PVDF) / multi-walled carbon nanotube (MWNT) thermoplastic composites was melt compounded in an internal mixer. The percolation level for this system in electrical conductivity clearly occured between 2 and 2.5 wt%. PVDF/MWNT thermoplastic composites exhibited an increased crystallization temperature with the loading level, at 10 wt% loading by ca. 6. In addition, they presented a shoulder posterior to the main melting peak and an increased endpoint of the peak. In the Wide Angle X-ray Diffraction (WAXD) patterns, the incorporation of MWNT produced a larger shoulder at 2θ =20.7° with increasing the loading level, corresponding to the β-form crystal of PVDF.


2007 ◽  
Vol 464 (1) ◽  
pp. 195/[777]-203/[785] ◽  
Author(s):  
Soon Man Hong ◽  
Young Wan Nam ◽  
Seung Sang Hwang ◽  
Dong Wook Chae

2008 ◽  
Vol 8 (9) ◽  
pp. 4860-4863 ◽  
Author(s):  
Soon Man Hong ◽  
Seung Sang Hwang

Poly(vinylidene fluoride)(PVDF)/Multi-walled carbon nanotube (MWNT) composites were melt blended using internal mixer. The relationships between structures and physical properties of thin PVDF/MWNT composite films were studied. With increasing the content of MWNT, the size of spherulites in PVDF decreased. MWNT was used as a nucleating agent. The incorporation of MWNT produced a polar β-form crystal structure of PVDF. The permittivities of thin PVDF/MWNT composite films were increased with increasing the MWNT content. The percolation level in electrical conductivity occurred between 2 and 2.5 wt%. The critical conductivity saturation point for the electrical conductivity in PVDF was confirmed. Similar tendency was also observed in thermal conductivity.


Carbon ◽  
2012 ◽  
Vol 50 (3) ◽  
pp. 896-905 ◽  
Author(s):  
Sheng-Hao Hsu ◽  
Ming-Chung Wu ◽  
Sharon Chen ◽  
Chih-Min Chuang ◽  
Shih-Hsiang Lin ◽  
...  

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