TY - JOUR
A2 - Colantonio, Paolo
AU - Costa, L. C.
AU - Henry, F.
PY - 2012
DA - 2012/02/06
TI - The Impact of Blue Inorganic Pigments on the Microwave Electrical Properties of Polymer Composites
SP - 628237
VL - 2012
AB - We present the results of the measurement of complex dielectric permittivity, in the microwave frequency region, on glass reinforced polybutylene terephthalate (PBT) with blue inorganic pigments. The cavity resonant method had been used in order to measure the shift in the resonant frequency of the cavity, caused by the insertion of a sample, which can be related to the real part of the complex permittivity. Also, the quality factor of the cavity decreases with the insertion of a sample. The changes in the inverse of this quality factor give the imaginary part. In order to predict the dielectric behavior of this composite, we had developed a program of numerical simulation to calculate the complex permittivity of the inclusion. By using some of dielectric mixture laws (Maxwell-Wagner-Sillars, Hanai, Looyenga, inverse and direct Wiener, and Bruggemann), we can predict the dielectric behavior of the composite in a large range of volume fraction of inclusions.
SN - 1687-5826
UR - https://doi.org/10.1155/2012/628237
DO - 10.1155/2012/628237
JF - International Journal of Microwave Science and Technology
PB - Hindawi Publishing Corporation
KW -
ER -