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Electrical characteristics of fluorinated carbon black‐filled poly(vinylidene fluoride) composites
Author(s) -
Wu Guozhang,
Zhang Cheng,
Miura Tadashi,
Asai Shigeo,
Sumita Masao
Publication year - 2001
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1191
Subject(s) - carbon black , materials science , composite material , percolation threshold , fluoride , dielectric , dispersion (optics) , percolation (cognitive psychology) , fluorine , carbon fibers , electrical resistivity and conductivity , composite number , chemistry , natural rubber , inorganic chemistry , physics , optoelectronics , engineering , optics , neuroscience , electrical engineering , metallurgy , biology
Dispersion and electrical properties of fluorinated carbon black‐filled poly(vinylidene fluoride) (PVDF) composites were studied as a function of the fluorine content. It was found that with increasing the fluorine content carbon particles tend to stick together to form large aggregates. The percolation concentration increases to a high concentration, whereas the percolation process becomes gradual. The temperature dependence of resistivity measurements show that the fluorinated carbon black‐filled PVDF composites exhibit a high PTC intensity and a low NTC effect. These phenomena were discussed in terms of thermodynamic interactions between fluorinated carbon and the PVDF matrix. The dielectric behavior was also investigated in this study. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 80: 1063–1070, 2001
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