Microwave photonic FBG interrogation by the fixed array of addressed comb and artificial neural networks

Abstract

The paper shows that the addition of SiO₂ nanoparticles to the polymer matrix of isotactic polypropylene significantly improves its thermophysical and dielectric properties. The optimal filler concentration is 3–5 vol%, which maximizes the increase in crystallinity, reduces dielectric losses, and limits the mobility of the polymer macromolecules. The results of this work can be used to create composites with improved electrical insulation and heat resistance properties.