Е-Публикации
Технически университет - София

Abstract: This study presents an expeditious and efficacious methodology for the preliminary assessment of thermal properties in textile composites, specifically a conventional denim-type cotton fabric and an applied nanofiber mat of varying compositions. Thermal conductivity was determined utilizing a ThermaCAM® P45 thermal imaging camera (FLIR) and corresponding software. A standard electrospinning technique was employed to produce a nanomat from four distinct types of two-component solutions based on polyvinylalcohol (PVA): pure PVA, PVA combined with beeswax (PVA/BW), PVA with two species of algae, Chlorella (PVA/Ch), and Spirulina (PVA/Sp). The findings are presented for the mass, thickness, air, and vapor permeability of the nanomat, contingent upon the composition of the polymer two-component solution. This investigation demonstrates that the cotton-PVA/BW structure exhibits superior thermal insulation properties, with a λ value of 0.157 W/mK, whereas pure Denim exhibits a λ value of 0.2543 W/mK.

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