Conductivity and dielectric relaxation in sodium borosulfate glasses

Ionic hopping conductivity in potential batteries separator based on natural rubber–nanocellulose green nanocomposites

“…(5) and (6), respectively. From the above assumptions and employing a continuous time random walk approximation [94], Dyre has derived the following equation for the AC conductivity in disorder solids [57]: According to this model the non-interacting charge carriers remain at sites with minimum energy.…”

AC and DC electrical conductivity in natural rubber/nanofibrillated cellulose nanocomposites

“…The values of s (T) for an ideal Debye dielectric dipolar-type and ideal ionic-type crystal are 1 and 0, respectively. This AC universality law has been found to satisfactorily describe the AC response of numerous different types of materials, which can be classified as disordered solids [48][49][50][51], such as ion conducting glasses [52,53], amorphous semiconductors [54], conducting polymers [55] and polymer matrix-conductive filler composites [56,57].…”

Influence of two carbon plies on adhesion of unidirectional flax‐fibers reinforced epoxy composites

“…The enhancement of the real part of permittivity of the composite material at low frequencies and at low temperatures is attributed to the presence of water dipoles polarization present in the pectocellulosic fiber which is absorbed to form a molecular monolayer . These water molecules are related to the hydroxyl groups of cellulose fiber and could not be removed by a simple heat treatment . This water dipole relaxation type was largely studied in several works .…”