Abstract
The electrical properties of conductive carbon black (CB) nanoparticles (0.1wt percent) doped thin films made of poly(ethylene oxide) (PEO) filled with varying amounts of the electrolyte potassium alum salt and doped with conductive carbon black (CB) nanoparticles (0.1wt percent) have been investigated. The dependence of the activation energy of the composites on frequency, temperature, and filler content was studied using the AC impedance technique. The current research looked at how activation energy changed with frequency (200-1000 kHz) and temperature (30-55oC) for composites with varied potassium alum salt concentrations: 0, 2, 4, 8, 12, and 16 wt. percent. The activation energy (Ea) values measured exhibited frequency, temperature, and filler content relationships. According to polarization processes, the activation energy of the produced sheets decreases with the potassium alum salt content in the composite and decreases with the temperature. With increasing frequency, the activation energy of the produced thin films decreases.
Highlights
Plastics, whose molecules are made up of long groups of carbon and hydrogen atoms, have few or no free electrons
The electrical properties of polyethylene oxide/alum composites doped with carbon black, containing 0, 2, 4, 8, 12 and 16 % by weight potassium alum salt were studied, and some of their physical parameters such as the AC electrical conductivity and activation energy were determined
Potassium alum salt added to the matrix of polyethylene oxide to compose thin films, is being investigated to evaluate the role of the potassium alum salt particles in the process of activation energy when the electric field is affected
Summary
Plastics, whose molecules are made up of long groups of carbon and hydrogen atoms, have few or no free electrons. Poly(ethylene oxide) (PEO) is a crystalline thermoplastic polymer that is widely used in industrialized countries due to its favorable properties: it is a neutral, non-toxic, and water-soluble polymer with a low cost. Single-charged potassium cations, and other elements and compounds, aluminum sulfate can create alum It is commonly used in leather tanning, dyeing, water purification, fire retardant textiles, and baking powder. It’s used as a reinforcing filler in polymers to improve electrical conduction and reduce resistance. This property is thought to be a result of the carbon black particle structure joining them together to form conductive channels or due to the "tunnel effect" of electrons hopping between dispersed carbon black particles [7,8]
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