Studies of the Application of Electrically Conductive Composite Copper Films to Cotton Fabrics

Abstract

This paper presents a technology for applying copper and silver films to cotton fabrics by combining photochemical and chemical methods for the reduction of the compounds of these metals. The resulting metal-containing films have inherent electrical conductivity of metals. All the main processes described in the work were carried out by means of the compounds being sorbed by the surface of the fabric when they were wetted in appropriate solutions. The aim of the work was to study the application of electrically conductive composite copper films on cotton fabrics. The tasks to achieve this aim were to perform scanning electron microscopy, energy dispersive spectroscopy and X-ray diffraction analysis to confirm that as a result of the experiment, CuCl with a semiconductor ability was formed on the surface of the sample. The driving force behind the photochemical reduction of copper and silver halides on cotton surfaces is that, as a result of the photooxidation of cellulose molecules in the fabric, copper monochloride is first formed on the cotton surface. Subsequently, the process of obtaining silver particles based on semiconductor silver chloride obtained as a result of the transformation of copper monochloride was carried out. The physicochemical and photochemical processes leading to the formation of monovalent copper chloride, which provides sufficient adhesion to the substrate, are considered. It is shown that in this case, the oxidation of monovalent copper also occurs with the formation of soluble salts that are easily removed by washing. Since the proposed technology does not require special equipment, and the chemical reagents used are not scarce, it can be used to apply bactericidal silver films to various household items and medical applications in ordinary laundries or at home. This article examines an affordable and simple technology for producing metal films on a cotton surface due to the presence of disadvantages (time duration, high temperature, scarce reagents, special installations, etc.) of a number of well-known methods in the production of chemical coatings.

Methods for Obtaining Phosphorus-Containing Fertilizers Based on Industrial Waste

“…At the same time, respectively, there is an increase in the yield of monocalcium phosphate and P 2 O 5 with the product. The optimal parameters taking a phosphoruscontaining compound from cottrel dust were determined and the process of crystallization of monocalcium phosphate was studied depending on the duration of the process and the yield of P 2 O 5 with the product [24,25].…”

Characterization and Optimization of Cu-Al2O3 Nanocomposites Synthesized via High Energy Planetary Milling: A Morphological and Structural Study

“…Copper-based nanocomposites have been studied extensively due to the high thermal and electrical conductivity of copper [1][2][3][4], as well as its low cost and availability [5,6]. The incorporation of ceramic nanoparticles, such as alumina, into the copper matrix can improve the mechanical properties [7,8], such as hardness and wear resistance, without compromising the electrical and thermal conductivity [9][10][11].…”