Use of statistical design of experiments in the optimization of Ar–O2 low-pressure plasma treatment conditions of polydimethylsiloxane (PDMS) for increasing polarity and adhesion, and inhibiting hydrophobic recovery

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Título: Use of statistical design of experiments in the optimization of Ar–O2 low-pressure plasma treatment conditions of polydimethylsiloxane (PDMS) for increasing polarity and adhesion, and inhibiting hydrophobic recovery
Autor/es: Butrón-García, María Isabel | Jofre-Reche, José Antonio | Martín-Martínez, José Miguel
Grupo/s de investigación o GITE: Adhesión y Adhesivos
Centro, Departamento o Servicio: Universidad de Alicante. Departamento de Química Inorgánica
Palabras clave: PDMS | Low-pressure plasma | Hydrophobic recovery | Water contact angle | XPS | Adhesion
Área/s de conocimiento: Química Inorgánica
Fecha de publicación: 30-mar-2015
Editor: Elsevier
Cita bibliográfica: Applied Surface Science. 2015, 332: 1-11. doi:10.1016/j.apsusc.2015.01.144
Resumen: Polydimethylsiloxane (PDMS) film was treated with RF low-pressure plasmas (LPPs) made of mixtures of oxygen and argon for increasing surface polarity, minimizing hydrophobic recovery (i.e. retard ageing) and increasing adhesion to acrylic adhesive tape for medical use. Statistical design of experiments has been used for determining the most influencing experimental parameters of the LPP treatment of PDMS. Water contact angle values (measured 24 h after treatment) and the O/C ratio obtained from XPS experiments were used as response variables. Working pressure was the most influencing parameter in LPP treatment of PDMS, and the duration of the treatment, the power and the oxygen–argon mixture composition determined noticeably its effectiveness. The optimal surface properties in PDMS and inhibited hydrophobic recovery were achieved by treatment with 93 vol% oxygen + 7 vol% argon LLP at low working pressure (300 mTorr), low power (25 W) and long duration of treatment (120 s).
Patrocinador/es: This study was carried out in the framework of COST MP1101project.
URI: http://hdl.handle.net/10045/44647
ISSN: 0169-4332
DOI: 10.1016/j.apsusc.2015.01.144
Idioma: eng
Tipo: info:eu-repo/semantics/article
Derechos: © 2015 Elsevier B.V.
Revisión científica: si
Versión del editor: http://dx.doi.org/10.1016/j.apsusc.2015.01.144
Aparece en las colecciones:INV - LAA - Artículos de Revistas

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