Electrophysical properties of surface-treated natural plant fibers
Abstract
This article presents the chemical and thermal processing and electrophysical properties of typha (Latifolia) fiber (TF). For this purpose, samples were prepared from locally grown cattail fiber. It was shown that until now, the complexity of the technology for preparing samples for studying physical processes in cattail fiber has not been paid attention to. When selecting samples as objects of research of electrophysical properties, the role of contact materials was also taken into account. The electrical conductivity properties of pure and doped samples were compared. During the alloying process, solutions of chemical elements in water in different percentages were separately taken into account. The main results of the study are as follows. The electrophysical and photoelectric properties of cattail fiber samples doped with different percentages of chemical elements and mercerized were separately studied. The study was carried out in the temperature range of 293-370 K with a voltage of up to U=100 V. Structural changes in the samples were examined using the IR spectroscopy method. The dependence of the electrical conductivity of the TF on temperature was also studied, and the activation energy increased exponentially depending on the conductivity of the samples, depending on the doping of the samples with different percentages of chemical elements in water. According to the results of the studies, a linear change in the volt-ampere characteristic of samples made from natural fibrous plant fiber was observed. It was proven that the current flowing through all the samples prepared as the object of the study obeyed Ohm’s law. According to the results, it was found that the electrical conductivity of the samples doped with iodine increased significantly due to the photogeneration of charge carriers.