Effect of gamma-irradiation on the dielectric properties of Polypropylene Na+Na++montmorillonite composite
Mammadova R. L.1, Madatov R. S.2
1Karabakh University, Khankendi, Azerbaijan
2Institute of Radiation Problems of the Ministry of Science and Education of the Republic of Azerbaijan, Baku, Azerbaijan
Email: rasmiyyamammadova70@gmail.com
Effect of gamma-irradiation on the dielectric properties of polymer composites based on polypropylene (PP) with Na+-montmorillonite (MMT) nanoparticles has been investigated. It has been found that gamma-irradiation in the dose range of 100-200 kGy leads to slight deterioration in the dependences of ε=f(T) and tgδ=f(T) of the polypropylene-based composite with Na+-MMT filler. It has been hypothesized that the deterioration of dielectric properties during irradiation in composites is due to changes in crosslinking and degradation processes within the polymer matrix and at the polymer-filler interface. It has been indicated that due to gamma-irradiation of polymer composites its dielectric and electrophysical properties can be expediently controlled. Keywords: Polypropylene, Na+-montmorillonite, gamma irradiation, dielectric constant, dielectric energy loss.
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