Abstract :
Energy storage and release are very important for several applications. So, poly vinyl alcohol (PVA) and
poly ethylene glycol (PEG) have been prepared by using casting method with different percentages of the vegetarian
lotion of willow (VLW). The effect of (VLW) filler on D.C and A.C electrical properties of (PVA –PEG) blend has
been studied. The samples have been prepared by adding vegetarian lotion of willow with different volume
percentages. The results show that the volumetric electrical conductivity of (PVA-PEG- vegetarian lotion of willow)
bio composites was increased with the increasing of the vegetarian lotion of willow concentrations at 350C. The
dielectric constant and dielectric loss (PVA-PEG-vegetarian lotion of willow) bio composites were increased with
the increase of the vegetarian lotion of willow concentrations and they are decreased as frequency increased. The
A.C electrical conductivity for (PVA-PEG- vegetarian lotion of willow) bio composites are variety with the increase
of the vegetarian lotion of willow concentrations and frequency. The results of applications for (PVA-PEG-VLW)
bio composites show that the melting and solidification time for thermal energy storage and release decreased with
adding vegetarian lotion of willow concentrations.
Keyword :
bio composites, vegetarian lotion, energy storage, energy release, willow.