Increased adhesion of polydimethylsiloxane (PDMS) to acrylic adhesive tape for medical use by surface treatment with an atmospheric pressure rotating plasma jet

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Title: Increased adhesion of polydimethylsiloxane (PDMS) to acrylic adhesive tape for medical use by surface treatment with an atmospheric pressure rotating plasma jet
Authors: Jofre-Reche, José Antonio | Pulpytel, Jérôme | Arefi-Khonsari, Farzaneh | Martín-Martínez, José Miguel
Research Group/s: Adhesión y Adhesivos
Center, Department or Service: Universidad de Alicante. Departamento de Química Inorgánica
Keywords: Polydimethylsiloxane | Atmospheric pressure rotating plasma jet | Hydrophobic recovery | Adhesive tape for medical use
Knowledge Area: Química Inorgánica
Issue Date: 21-Jul-2016
Publisher: IOP Publishing
Citation: Journal of Physics D: Applied Physics. 2016, 49(33): 334001 (10pp). doi:10.1088/0022-3727/49/33/334001
Abstract: The surface properties of polydimethylsiloxane (PDMS) were modified by treatment with an atmospheric pressure rotating plasma jet (APPJ) and the surface modifications were studied to assess its hydrophilicity and adhesion to acrylic adhesive tape intended for medical applications. Furthermore, the extent of hydrophobic recovery under different storage conditions was studied. The surface treatment of PDMS with the APPJ under optimal conditions noticeably increased the oxygen content and most of the surface silicon species were fully oxidized. A brittle silica-like layer on the outermost surface was created showing changes in topography due to the formation of grooves and cracks. A huge improvement in T-peel and the shear adhesive strength of the APPJ-treated PDMS surface/acrylic tape joints was obtained. On the other hand, the hydrophilicity of the PDMS surface increased noticeably after the APPJ treatment, but 24 h after treatment almost 80% hydrophobicity was recovered and the adhesive strength was markedly reduced with time after the APPJ treatment. However, the application of an acrylic adhesive layer on the just-APPJ-treated PDMS surface retained the adhesive strength, limiting the extent of hydrophobic recovery.
Sponsor: The STSM Grant by COST ACTION MP1101 ‘Biomedical Applications of Atmospheric Pressure Plasma Technology’ and financial support from the Innovaciones DisRas S L Company is gratefully acknowledged.
ISSN: 0022-3727 (Print) | 1361-6463 (Online)
DOI: 10.1088/0022-3727/49/33/334001
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2016 IOP Publishing Ltd
Peer Review: si
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