•  
  •  
 

Abstract

The electrical insulation of the manufacture sulfonated phenol-formaldehyde viscous material (product) has been studied with Polyvinyl-acetate (PVA) and toluene diisocyanate(TDI)blend hasbeen preparedby fixing percentage by weight 3:1and mixed withdifferent percentages by weightof the product sulfonated phenol formaldehyde viscous mass (SPF). The Fourier transform infrared (FTIR) spectroscopy is done on (SPF) resin powder and prepared film of PVA-TDI-SPF viscous mass. The quality factor (Q), dissipation factor (D), parallel resistance (Rp), series resistance (Rs), parallel capacitance (Cp), series capacitance (Cs) and phase shift (ɸ) are measured. The calculated maximum dielectric constant (ε′)is 3.49x107at sample (1) wt.1% SPF viscous mass to the weight of (PVA-TDI), the minimum dielectric constant is 1.12x106at sample (3) wt.3% of SPF viscous mass to PVA-TDI weight. The maximum dielectric loss factor (ɛ′′) is 3.68x107at sample (1) and the minimum dielectric loss is 2.04x106for sample (3). The maximum conductance is 1.06x10-4S at sample (1) and minimum conductance is 6.64x10-6at sample (3). The maximum frequency dependent ac. conductivity (σac) is 2.048 S m-1for sample (1) and the minimum is 0.113 S m-1at sample (3). The maximum total conductivity (σt) is 126.2 S m-1for sample (1) and minimum (σt) is 1.129 S m-1for sample (3). The maximum independent conductivity (σdc) is 124 S m-1for sample (1) and minimum value is 1.015 S m-1for sample (3). The maximum capacitive reactance (Xs) is 0.83 MΩ at sample (5) wt.5% SPF viscous mass to PVA-TDIweight and the minimum is 0.14 MΩ for sample (3).

Keywords

Mixture, Electrical Insulators, Conductivity, Capacitive Reactance

Article Type

Article

Download

Share

COinS