Magnesium-based compounds, such as oxide (MgO) and hydroxide (Mg (OH)2), are used in various applications ranging from medicine to electrotechnics. Especially, magnesium hydroxide coatings of textile structures are frequently used as part of flame retardant compositions, antibacterial agents, and surface absorption of far infrared radiation. Numerous analytical techniques exist for evaluating these compounds on material surfaces. The main aim of this article is to propose a novel methodology for the non-destructive quantitative evaluation of Mg (OH)2 coatings on the surfaces of typical synthetic fibers in low concentrations by analyzing Raman spectra. A regression approach was used to determine the concentration of Mg (OH)2 based on the assumption of Raman spectra additivity of Mg (OH)2 and the synthetic fiber. A simple modification of the sensor for analyzing Raman spectra was implemented, ensuring accurate positioning along all three axes. This methodology was applied to the analysis of polyester and polyamide textiles with Mg (OH)2 coatings.

• Klíčová slova
• Magnesium hydroxide, Magnesium oxide, Nondestructive technique, Raman spectra, Textile coatings,
• Publikační typ
• časopisecké články MeSH

In the last few decades, there has been a trend involving the use of nanoscale fillers in a variety of applications. Significant improvements have been achieved in the areas of their preparation and further applications (e.g., in industry, agriculture, and medicine). One of these promising materials is magnesium oxide (MgO), the unique properties of which make it a suitable candidate for use in a wide range of applications. Generally, MgO is a white, hygroscopic solid mineral, and its lattice consists of Mg2+ ions and O2- ions. Nanostructured MgO can be prepared through different chemical (bottom-up approach) or physical (top-down approach) routes. The required resultant properties (e.g., bandgap, crystallite size, and shape) can be achieved depending on the reaction conditions, basic starting materials, or their concentrations. In addition to its unique material properties, MgO is also potentially of interest due to its nontoxicity and environmental friendliness, which allow it to be widely used in medicine and biotechnological applications.

• Klíčová slova
• bottom-up, crystallite size, dielectric properties, electrotechnical applications, magnesium oxide, nanomaterials, structural properties, synthesis,
• MeSH
• adsorpce MeSH
• chemické modely MeSH
• nanočástice chemie   MeSH
• oxid hořečnatý chemie   MeSH
• Publikační typ
• časopisecké články MeSH
• přehledy MeSH
• Názvy látek
• oxid hořečnatý MeSH