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Conductive polymer blends with low carbon black loading: Polypropylene/polyamide
Author(s) -
Tchoudakov R.,
Breuer O.,
Narkis M.,
Siegmann A.
Publication year - 1996
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.10528
Subject(s) - materials science , polypropylene , carbon black , electrical resistivity and conductivity , crystallinity , morphology (biology) , polyamide , percolation threshold , polymer blend , phase (matter) , composite material , percolation (cognitive psychology) , electrical conductor , polymer , polymer chemistry , copolymer , chemistry , natural rubber , organic chemistry , neuroscience , biology , electrical engineering , genetics , engineering
The electrical resistivity and morphology of polypropylene/nylon (PP/Ny) immiscible blends incorporated with carbon black (CB) were studied. CB was found to be preferentially located in the Ny phase or upon the Ny/PP interface. Blends with a co‐continuous phase morphology depicted especially low resistivity values, due to a “double percolation” effect. The blend preparation sequence tends to affect the phase morphology, thus influencing the system's resistivity. Polymer polarity and crystallinity are important factors determining the blend's morphology, which relates directly to the electrical resistivity obtained.