A "Water Shell" Model for the Dielectric Properties of Hydrated

The dielectric properties of epoxy resin have been studied as a function of hydration. The 40 µm SiO 2 2 particles. The relative humidity was controlled by saturated salt solutions at ambient temperatures from 298-353 K. Measurements were made using dielectric spectroscopyover the frequencyrange 10 -3 - 10 5 Hz. The hydration isotherm (i.e. the mass uptake of water) was established bymeasuring the mass as a function of relative humidity (RH). It was found that the nanocomposites absorb up to 60% more water