Plasma Treatment of Polyamide Fabric Surface by Hybrid Corona-Dielectric Barrier Discharge: Material Characterization and Dyeing/Washing Processes

• Autor(a) principal: Gasi,Fernando
• Data de Publicação: 2020
• Outros Autores: Petraconi,Gilberto, Bittencourt,Edison, Lourenço,Sérgio Ricardo, Castro,Alonso Hernan Ricci, Miranda,Felipe de Souza, Essiptchouk,Alexei Mikhailovich, Nascimento,Larissa, Petraconi,André, Fraga,Mariana Amorim, Pessoa,Rodrigo Savio
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Materials research (São Carlos. Online)
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392020000100201
• topic: Corona; dielectric barrier discharge; textile; polyamide; surface treatment.

In this study, the hybrid corona-dielectric barrier discharge plasma treatment was employed to modify the physical, chemical and morphological characteristics of a half-knitted fabric composed of 92% polyamide 6.6 and 8% elastane (PA). These properties of the fabric were evaluated by the water contact angle, x-ray diffraction, infrared spectroscopy, scanning electron microscopy and atomic force microscopy techniques. In addition, the dyeing and washing processes were also investigated. A significant reduction of the contact angle was observed for plasma-treated PA. Infrared spectroscopy analyses indicated that C-H, N-H, and N-O groups in PA increased after plasma treatment, explaining the improved coloring strength for the plasma-treated samples when dyed with reactive and acid dyes. A better fixation of dye was also observed after the atmospheric plasma treatment. Furthermore, dyeing with a basic and acid dye caused the dyeability increases for the plasma-treated sample compared with the untreated sample.