FINISHING TEXTILE MATERIALS WITH MICROCAPSULES AND NANOPARTICLES OF FUNCTIONAL SUBSTANCES

Abstract

The results of studies aimed at the creation of new functional textile materials through the use of microencapsulated TE (textile excipients) and metal nanoparticles, metal and non-metal oxides, as well as clays of natural origin were summarized. The developed methods for the synthesis of capsule shells of various architectures, including natural and synthetic polyelectrolytes, were presented. The technologies for encapsulation of functional preparations for aromatic, repellent and antibacterial finishing of textile materials were described. A description of the formation of microcapsules based on a highly active repellent drug - alpha-cypermethrin is given. An antimicrobial preparation containing silver nanoparticles has been developed, and recommendations for its use have been given. The production of silver nanoparticles were based on the reduction of metallic silver from silver nitrate using reducing agents such as glucose, glyoxal, and sodium dithionite in various concentrations. The sizes of synthesized particles vary from 145 to 2 nm. Modifying compositions based on synthetic polyelectrolytes and new complex compounds with predictable prolonged stability, functional substances and macrocycles (cyclodextrins (CD) and crown ethers) have been obtained. A technique was presented for the synthesis and strong fixation on cellulose fiber by introducing silver ions into the cavity of β-cyclodextrin of bioactive Ag-containing preparations with nanometer-sized particles. Methods for obtaining nanosized particles of zinc oxide were presented. Zinc acetate and zinc chloride were used as precursors. The sizes of the obtained nanoparticles are 70-90 nm. The technological bases for obtaining polyfunctional coatings on textile materials by impregnation and printing methods using polymers were described. The resulting coatings exhibit enhanced antibacterial and self-cleaning properties. The polyfunctionality of the action of fluorinated aluminosilicate in the processes of textile chemistry was shown. For citation: Odintsova O.I., Vladimirtseva E.L., Kozlova O.V., Smirnova S.V., Lipina A.A., Petrova L.S., Erzunov K.A., Konstantinova Z.A., Zimnurov A.R., Bykov F.A., Melnikov A.G. Finishing textile materials with microcapsules and nanoparticles of functional substances. ChemChemTech [Izv. Vyssh. Uchebn. Zaved. Khim. Khim. Tekhnol.]. 2023. V. 66. N 7. P. 173-184. DOI: 10.6060/ivkkt.20236607. 6844j.