Experimental Study of Electric and Dielectric Behavior of PVC Composites

Abstract

Polyvinyl chloride (PVC) is usually used as insulation in electrical engineering, mainly as cable insulation sheaths. A method for improving PVC’s dielectric properties, reducing the effects of UV aging, is the use of PVC films doped in alumina and titanium dioxide. This research investigated the influence of alumina and titanium dioxide (Al2O3/TiO2) on the dielectric properties of PVC. Four PVC samples were examined using an RLC impedance analyzer. Fourier Transform Infrared (FTIR) spectroscopy was utilized on the sample’s surfaces, exploring the chemical stability of the tested materials. In addition, the volume resistivity and average breakdown voltage of each sample were examined. Doping Al2O3/TiO2 into PVC improved its dielectric properties and volume resistivity while adding more ceramic decreased volume resistivity. Furthermore, the addition of Al2O3/TiO2 caused a significant enhancement in voltage breakdown strength.

An Experimental Study of the Dielectric Parameters of PVC Nano-Composites under Corona Conditions

“…As demonstrated in Figure 4, for a frequency of 100Hz, the values of Ɛ r for BaTiO 3 , TiO 2 , CaCO 3 , and Al 2 O 3 decrease by approximately 57%, 50%, 35%, and 37%, respectively, compared to the value of Ɛ r for pure PVC prior to aging. These findings are in agreement with the findings of [13,25,33], and can be validated through (1) [1]:…”

“…Metal oxide nanoparticles in polymers have been studied as alternative materials for electrical applications [8][9][10][11]. Studies have demonstrated that the incorporation of nanoparticles in similar systems can have both positive and negative effects on breakdown strength [12][13][14]. Furthermore, it has been established that the production of artificial reinforcement fillers can lead to either an increase or decrease in the dielectric strength of polymeric composite insulation, which is utilized in high voltage outdoor applications [15].…”

Synthesis and Electrical Behavior of Sodium Doped Monoclinic SrSiO3

“…The same disparity was found in [31][32][33]. Sr 0.55 Na 0.45 SiO 3 has an activation energy of www.etasr.com Najim: Synthesis and Electrical Behavior of Sodium Doped Monoclinic SrSiO 3 0.39 eV and its conductivity at 700C is higher (1.73×10 -2 Scm -1 ) than that of other solid electrolytes such as La 0.9 Sr 0.1 In 0.8 Mg 0.2 O 3 (10 -3 Scm -1 ), La 0.9 K 0.1 Ga 0.9 Mg 0.1 O 3 (7.65×10 -3 Scm -1 ), and La 0.9 Ca 0.1 InO 3 (1.6×10 -3 Scm -1 ) [34][35][36][37][38].…”