Study of the Electrophysical Properties of the Composite of Plant and Bacterial Cellulose

The electrophysical characteristics were studied, in particular, short-term electrical strength (Eb) and tensile strength (σb) of high-voltage electrical insulating paper, the cellulose base of which was modified by the structure-forming nano-biopolymer - bacterial cellulose, disintegration of which was carried out in various ways. The measurements showed that in the initial state the composite exceeds the traditional dielectric of 100% pine cellulose by a number of important characteristics, in particular: by Eb - 1.5 times, by σb - 1.5 - 2.0 times (depending on the choice of the method of dissipation of the biopolymer), and is characterized by increased heat resistance. The possibility of creating high-voltage electrical insulating paper with improved electrical properties and increased resistance to long-term thermal effects for use in power transformers and other electrical devices is demonstrated.