Preparação de tecido 100% algodão com plasma-DBD para aplicação de AgNP

Abstract

The demand for functional textiles is constantly growing, as these products encompass all textiles that perform some functionality. However, the pre-treatment processes for these materials (preparation) are generally applied through moisture and hydration processes, which have some limitations, the most significant of which is the need for uniformity on the surface. Conversely, the adoption of a dry preparation method, using the dielectric barrier plasma discharge (DBD) method, stands out as a competitive option, both in terms of cost and sustainability, compared to chemical treatments for dampness. This technique not only reduces operational costs, but also aligns with a growing concern for environmental preservation, avoiding excessive use of natural resources, such as water, and minimizing the emission of emissions (effluents), which improves overall efficiency. pre-treatment of textile substrates. Furthermore, after preparation, metallic silver nanoparticles can be applied more uniformly and effectively, ensuring finish coverage. Based on the above, the objective of this work is to employ the plasma-assisted deposition technique of dielectric barrier discharge (DBD) at atmospheric pressure to prepare 100% cotton substrates by dry process, with subsequent finishing with silver nanoparticles by exhaustion. The materials obtained were evaluated by DLS to size the nanoparticles, MEV, FTIR, and XRD to characterize the impregnations made on the substrates, and traction and tension tests, characterizing all the physical behaviors of the samples. The results obtained showed the adhesion of nanoparticles to the cotton surface and that plasma treatment has the potential to be used as a textile pre-treatment, to avoid high water consumption.