Your browser doesn't support javascript.
loading
Physicochemical Studies on the Surface of Polyamide 6.6 Fabrics Functionalized by DBD Plasmas Operated at Atmospheric and Sub-Atmospheric Pressures.
Nascimento, Larissa; Gasi, Fernando; Landers, Richard; da Silva Sobrinho, Argemiro; Aragão, Eduardo; Fraga, Mariana; Petraconi, Gilberto; Chiappim, William; Pessoa, Rodrigo.
Afiliación
  • Nascimento L; Laboratório de Plasmas e Processos, Instituto Tecnológico de Aeronáutica (ITA), São José dos Campos 12228-900, Brazil.
  • Gasi F; Centro de Engenharia, Modelagem e Ciências Sociais Aplicadas, Universidade Federal do ABC (UFABC), São Bernardo do Campo 09210-170, Brazil.
  • Landers R; Instituto de Física Gleb Wataghin (IFGW), Universidade Estadual Paulista (Unicamp), Campinas 13083-859, Brazil.
  • da Silva Sobrinho A; Laboratório de Plasmas e Processos, Instituto Tecnológico de Aeronáutica (ITA), São José dos Campos 12228-900, Brazil.
  • Aragão E; Campus Integrado de Manufatura e Tecnologias, SENAI Cimatec, Salvador 41650-010, Brazil.
  • Fraga M; Instituto de Ciência e Tecnologia (ICT), Universidade Federal de São Paulo (Unifesp), São José dos Campos 12231-280, Brazil.
  • Petraconi G; Laboratório de Plasmas e Processos, Instituto Tecnológico de Aeronáutica (ITA), São José dos Campos 12228-900, Brazil.
  • Chiappim W; i3N, Departamento de Física, Universidade de Aveiro, Campus Santiago, Aveiro 3810-193, Portugal.
  • Pessoa R; Laboratório de Plasmas e Processos, Instituto Tecnológico de Aeronáutica (ITA), São José dos Campos 12228-900, Brazil.
Polymers (Basel) ; 12(9)2020 Sep 18.
Article en En | MEDLINE | ID: mdl-32961866
This work proposes the use of a dielectric barrier discharge (DBD) reactor operating at atmospheric pressure (AP) using air and sub-atmospheric pressure (SAP) using air or argon to treat polyamide 6.6 (PA6.6) fabrics. Here, plasma dosages corresponding to 37.5 kW·min·m-2 for AP and 7.5 kW·min·m-2 for SAP in air or argon were used. The hydrophilicity aging effect property of untreated and DBD-treated PA6.6 samples was evaluated from the apparent contact angle. The surface changes in physical microstructure were studied by field emission scanning electron microscopy (FE-SEM). To prove the changes in chemical functional groups in the fibers, Fourier transform infrared spectroscopy (FTIR) was used, and the change in surface bonds was evaluated by energy dispersive X-ray spectroscopy (EDS) and X-ray photoelectron spectroscopy (XPS). In addition, the whiteness effect was investigated by the color spectrophotometry (Datacolor) technique. The results showed that the increase in surface roughness by the SAP DBD treatment contributed to a decrease in and maintenance of the hydrophilicity of PA6.6 fabrics for longer. The SAP DBD in air treatment promoted an enhancement of the aging effect with a low plasma dosage (5-fold reduction compared with AP DBD treatment). Finally, the SAP DBD treatment using argon functionalizes the fabric surface more efficiently than DBD treatments in air.
Palabras clave
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Polymers (Basel) Año: 2020 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Suiza
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Polymers (Basel) Año: 2020 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Suiza