Tag Archives: Dielectric properties

Dielectric Behavior and Functionality of Polymer Matrix/Cigarette Butts Composites (Published)

Cellulose acetate powder which is extracted from the cigarette (insulator part as a filler) has been used with polymer to produce PVC Cement/cellulose acetate composite. The dielectric behavior of this composite is analyzed as a function of weight fractions (0.1, 0.2, 0.3, 0.4, and 0.5 wt%), temperature range (30 – 110) ◦C and frequency (120Hz -2MHz). Impedance and  σac. conductivity of the composites behaviors as function of frequency and temperature have also studied. The results show that, the real permittivity, dielectric loss and loss tangent for all composites increase with increasing cellulose acetate  filler content.

Keywords: Cellulose Acetate, Dielectric properties, Polymer-Matrix Composites

Effect of Doping Ratios on Dielectric Properties of Resol Novolac Resin (RNR) With Rhodamine 6g (Published)

Dielectric properties and ac conductivity measurements on Resol Novolac Resin (RNR) doped with (0.01, 0.03, 0.05, 0.07, 0.1)% wt of Rhodamine 6G have been studied.The measurements were carried out in the frequency range (100Hz-1MHz) and temperature in the range (30-100) ˚C and. The experimental results showed that ε′, ε̋ and tanδ increased with increasing temperature, and is due to greater freedom of movement of the dipole molecular chains within polymer at high temperature. The value of ε′ decreased with increasing frequency, which indicates that the major contribution to the polarization comes from orientation polarization. Ac. Conductivity σac and impedance (Z) of doping polymer behaviors as function of frequency and temperature have also been investigated.                                                                         

Keywords: Dielectric properties, Resol Novolac Resin, Rhodamine 6G, ac conductivity.