Abstract
To activate the surface of cotton fabrics before chemical nickel plating, it is proposed to use physical and chemical processes occurring in thin layers of solutions of copper (II) chloride under the influence of electromagnetic solar rays of the visible spectrum. It is shown that cellulose, which is the main component of the fabric, undergoes photo-oxidation in the presence of copper (II) chloride. As a result of this interaction, well-bonded copper monochloride is formed. When further processing of the fabric with phosphine gas, copper monochloride is transformed into copper and copper phosphide. Copper phosphide is a catalyst for the chemical nickel plating process. This makes it possible to obtain an electrically conductive nickel-phosphorus coating on the surface of the fabric in conventional electrolytes of chemical nickel plating. It is also found that when screening individual sections, the processes leading to the formation of copper monochloride do not occur. This allows selective metallization of the fabric.
Highlights
The acceleration of technological progress poses new challenges to the industry in the field of fabric production
Copper phosphide is a catalyst for the chemical nickel plating process
To apply nickel coatings to fabrics, the following basic operations are required: - creating an indelible layer of copper chloride (I) on the surface of the fabric); - transformation of chloride (I) to copper phosphide; - obtaining a metal coating by chemical nickel plating
Summary
The acceleration of technological progress poses new challenges to the industry in the field of fabric production. - decorative appearance, electrical conductivity, which gives fabrics antistatic properties [1]; - creation of an active catalytic layer on the fabric surface of the necessary layer necessary for chemical current sources and devices for producing hydrogen [2, 3]; - giving fabrics a certain electrical resistance allows them to be used as flexible conductive elements, clothing with heating elements [4]; - shielding of electromagnetic radiation and use in various protective devices [5,6,7]; - radio-absorbing properties that are widely used in modern industry and, especially, in products of the military-industrial complex [8]. Processes are carried out on special installations Such fabrics have good decorative properties and high electrical conductivity, which allows them to be used as flexible conductive elements and when creating smart textiles [4]. It is obvious that in this case the difficulties associated with the creation of additional threads
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