Simultaneous Treatment of Both Sides of the Polymer with a Conical-Shaped Atmospheric Pressure Plasma Jet

Autor(es)

Kodaira, Felipe Vicente de Paula ; Leal, Bruno Henrique Silva ; Tavares, Thayna Fernandes ; Quade, Antje ; Hein, Luis Rogerio de Oliveira ; Chiappim, William ; Kostov, Konstantin Georgiev

• Tipo de documento: Artigo Científico
• Fonte: POLYMERS; v. 15, n. 2, p. 14-pg., 2023-01-01.

Resumo

A conical-shaped atmospheric pressure plasma jet (CS-APPJ) was developed to overcome a standard limitation of APPJs, which is their small treatment area. The CS-APPJs increase the treatment area but use the same gas flow. In the present work, polypropylene samples were treated by CS-APPJ and characterized by scanning electron microscope (SEM), the contact angle, Fourier-transformed infrared spectroscopy (FTIR), and X-ray photoelectron spectroscopy (XPS). It was observed that the treatment co-occurs on the face directly in contact with the plasma and on the opposite face (OF) of the samples, i.e., no contact. However, the treatment changed the chemical composition on each side; the OF is rougher than the direct contact face (DCF), probably due to the oxygen groups in excess at the DCF and nitrogen in quantity at the OF. Although simultaneous treatment of both sides of the sample occurs for most atmospheric plasma treatments, this phenomenon is not explored in the literature. (AU)

• Processo FAPESP: 19/05856-7 - Aplicações de plasmas atmosféricos não-térmicos na odontologia: da bancada para a clínica
• Beneficiário: Cristiane Yumi Koga Ito
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 20/10450-7 - Explorando o potencial do líquido ativado com plasma (PAL): caracterização do plasma e aplicação do PAL no tratamento endodôntico
• Beneficiário: William Chiappim Junior
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado