Electro-resistant biotextile development based on fiber reinforcement with nano particles

Abstract

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.

The Mechanical Properties of Nanocomposites Reinforced with PA6 Electrospun Nanofibers

“…There are several methods for producing nanofibers, including jet blowing, melt blowing, coextrusion, interfacial polymerization, and electrospinning [ 18 , 19 , 20 ]. Among these approaches, electrospinning has been extensively used to create polymer nanofibers, nanocomposites, as well as nanofibers containing different nanoparticles [ 21 , 22 , 23 , 24 ], graphene [ 25 ], graphene oxide [ 26 ], and carbon nanotubes [ 27 ] for different applications, such as biomedical [ 28 , 29 ], energy conversation [ 30 ], and tissue engineering [ 31 , 32 ]. Furthermore, the use of an electrospun thermoplastic nanofiber mats to toughen the glass/carbon epoxy laminated composites without degrading the in-plane mechanical properties and without considerably increasing the laminate thickness and weight has emerged as a promising technology [ 33 , 34 ].…”

Testing the Physical and Mechanical Properties of Polyacrylonitrile Nanofibers Reinforced with Succinite and Silicon Dioxide Nanoparticles

“…In general, nanofillers, such as nanoclays (layered silicates), are characterized as having at least one dimension in the range of 1-100 nm. Due to their nanoscale size, high specific surface area, and related preponderance of interfaces, trace quantities of nanofillers (usually 1-4 vol %) are capable of substantially altering the structure and morphology of PNCs at the molecular level [14,15]. This implies that they can influence material characteristics at a scale at which conventional micron-sized fillers cannot.…”

Morphology and mechanical properties of PAN nanofiber mat

“…Electrospinning is currently generally acknowledged as one of the most effective industrial nanofiber production technologies [13]. Fibre-reinforced composites are used in a variety of industries: e.g., medicine antibacterial characteristics [14,15], reinforced polymer composites [16][17][18], civil engineering construction [19][20][21][22]. Electro spun nanofibers offer a broad variety of applications due to their multiple advantages, including oil/water separation, air filtration, tissue engineering scaffolding, drug delivery [23], sensors [24], composites for load bearing [25][26][27] and advance structures [28,29].…”