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Dielectric dynamics of some nylon 6/CaCO 3 composites using broadband dielectric spectroscopy
Author(s) -
Turky G. M.,
Ghoneim A. M.,
Kyritsis A.,
Raftopoulos K.,
Moussa M. A.
Publication year - 2011
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.34166
Subject(s) - dielectric , materials science , relaxation (psychology) , dielectric spectroscopy , composite material , glass transition , conductivity , polyamide , thermal conduction , ionic conductivity , spectroscopy , polymer , polymer chemistry , chemistry , electrolyte , psychology , social psychology , physics , optoelectronics , electrode , quantum mechanics , electrochemistry
Broadband dielectric spectroscopy (10 −1 to 10 6 Hz) in combination with TSDC were employed to study the relaxations and the conductivity phenomena in polyamide 6/CaCO 3 composites loaded with different contents and particle sizes of treated and untreated CaCO 3 . In addition to the primary α‐relaxation associated with the glass transition, significant interfacial relaxation and ionic conduction processes have been revealed. The temperature dependence of the relaxation rates of α‐relaxation and Maxwell–Wagner–Siller‐process as well as that of the hopping rate of the conduction mechanism were found to follow the Vogel–Fulcher–Tammann‐model. This may support the idea that the three mechanisms are not completely independent. The modification of the filler does not add any effect on the resistivity values. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011.