Engineering for Rural Development 2021
Arta Viļuma-Gudmona, Inga Ļašenko, Jaymin Vrajlal Sanchaniya, Andrejs Podgornovs

Based on succinite superior biological and physical properties, elaborated biotextiles are excellent candidates of next generation multifunctional textiles. Here the thin, soft, and strong textile with superior abilities of electromagnetic interference shielding is prepared by technological composition of micro fibres reinforced with micro/nano particles: metal (Al/Ag), silicium dioxide, resin fillers (succinite or its derivatives). The composite biotextile also exhibits an excellent electrical resistance property, and at the same time can be water and air vapour transmissible easily. It has been proven that due to the high electrical resistance of the biotextile, as well as based on the electronegative surface charge of the biotextile, an additional protective repulsive barrier is provided against nano-sized particles (viruses size 20-150 nm). By testing on the electrical conductivity and electrical resistance of the biotextile, it was proved: the static voltage test shows that biotextile material has a good antistatic property. Biotextile tested in tandem with synthetic materials, residual static voltage is recorded, which can be defined as the presence of a conductive and insulating material in the biotextile sample. Polarization index test results show the highest mobility of the dipoles of the biotextile (polarization index PI 3.03). This characterizes it as a good electrical insulating material, but its low insulation resistance limits its use at high voltages. This provides a new strategy to develop multifunctional textile materials. In the research result, the electrostatic interaction of a textile material and a negatively charged particle was modelled and analysed (particle size of the SARS-CoV-2 = 0.09 μm). The developed new technological method for analysing the protective properties of textile materials can be recommended as an additional test to the existing method for testing protective (filtering) materials with a charged surface.

electro resistant material, nano particles with Ag, SiO2 and succinite, COVID-19.

Viļuma-Gudmona, A., Ļašenko, I., Sanchaniya, J., Podgornovs, A. ELECTRO-RESISTANT BIOTEXTILE DEVELOPMENT BASED ON THE FIBERS REINFORCEMENT WITH NANO PARTICLES.. In: Engineering for Rural Development, Latvia, Jelgava, 26-28 May, 2021. Jelgava, Latvia: LLU, 2021, pp.804-812. Available from: doi:10.22616/ERDev.2021.20.TF182

Publication language
English (en)
The Scientific Library of the Riga Technical University.
E-mail: uzzinas@rtu.lv; Phone: +371 28399196