Abstract
The aim of this research was to apply three different types of zeolites and the combination thereof in the form of a very fine powder, together with different chemicals and additives on polyamide knitted fabric according to an industrially acceptable exhaustion procedure in order to study changes in the morphology, optical properties and wettability of surfaces. Zeolites were analysed using Scanning Electron Microscopy (SEM), Fourier Transform Infrared Spectroscopy (FTIR) and gas physiosorption. Additionally, the morphology of zeolite-coated surfaces was examined closely using SEM, while changes in molecular-chemical level were examined by means of IR spectroscopy. Optical properties were studied using CIE colour measurement and diff use reflectance profi le determination, while the hydrophilic/hydrophobic character was examined using goniometry. The obtained results show the suitability of the employed exhaustion procedure, depending on the type of zeolite and the composition of the treatment bath. The results also provided evidence of the enhanced wettability of PA fabrics using 4A and 13X zeolites in combination with selected additives.
Highlights
Polyamide (PA) fibres are linear polymers containing amide bonds, the monomeric units of which are joined through secondary amide (-NHCO-)linkage [1]
The results provided evidence of the enhanced wettability of PA fabrics using 4A and 13X zeolites in combination with selected additives
Carran et al concluded that the surface treatment of wool fabrics with zeolite molecular sieve 5A leads to varied changes in the physicochemical properties of wool [7]
Summary
Polyamide (PA) fibres are linear polymers containing amide bonds, the monomeric units of which are joined through secondary amide (-NHCO-)linkage [1]. In addition to various nanoparticles that are used for modifying fibre-forming polymers, zeolites of numerous types have attracted increased interest for such kinds of applications on account of their superior heat resistance, high surface area, exchangeable cations and high chemical stability [6, 7]. Because they are non-toxic and non-absorbable by humans, zeolites would be highly promising for the fabrication of multifunctional textiles that are constantly in direct contact with the skin. Monteiro and colleagues showed that it is possible to immobilise montmorillonite onto cotton textile efficiently through their functionalisation with organosilanes, which in turn increases washing speed [10]
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