Show simple item record

dc.contributor.authorLiu, Feng
dc.contributor.authorCai, Meiling
dc.contributor.authorZhang, Bo
dc.contributor.authorFang, Zhi
dc.contributor.authorJiang, Chunqi
dc.contributor.authorOstrikov, Kostya Ken
dc.date.accessioned2019-06-26T06:02:02Z
dc.date.available2019-06-26T06:02:02Z
dc.date.issued2018
dc.identifier.issn0734-2101
dc.identifier.doi10.1116/1.5030718
dc.identifier.urihttp://hdl.handle.net/10072/385377
dc.description.abstractRecently developed atmospheric pressure plasma jet (APPJ) is considered as a novel and efficient technique for uneven surfaces processing and APPJ array effectively expands the treatment area of a single APPJ. In this paper, a two-dimensional (2D) APPJ array in Ar/tetramethylsilane (TMS) is used to improve the surface hydrophobicity of polymethyl methacrylate (PMMA) by depositing polymerized silicalike clusters on the jet-PMMA interface. The electrical and optical characteristics of the 2D Ar/TMS APPJ array are measured to optimize experimental conditions. The wettability of jet-PMMA interface is assessed by measuring water contact angle, which increases from 65° to a maximum value of 115° after 240 s plasma treatment at 0.04% TMS content. Scanning electron microscopy is used to investigate the micro- and nanoscale surface morphology of PMMA after plasma treatment, and it is found that there are clusters of particles with diameters of hundreds of nanometers attached on the PMMA surface. The changes of the chemical composition and chemical bonding on the PMMA surface are further analyzed using Fourier transform infrared and x-ray photoelectron spectroscopies. It is found that the silicon-containing groups, such as Si-CH3, Si-H, and Si-O-Si, replace oxygen-containing hydrophilic polar groups (C—O and C=O), reduce the surface polarity, decrease the surface tension, and increase the surface hydrophobicity. For the intensive peak of Si-O-Si in FTIR spectra, the improvement of hydrophobicity of the PMMA surface is caused by the hydrophobic polymerized Si-O-Si thin film. The results demonstrate that the APPJ array as a novel atmospheric pressure plasma device provides an efficient way to modify large uneven material surfaces.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherA V S AMER INST PHYSICS
dc.relation.ispartofissue6
dc.relation.ispartofjournalJOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
dc.relation.ispartofvolume36
dc.subject.fieldofresearchPhysical sciences
dc.subject.fieldofresearchEngineering
dc.subject.fieldofresearchcode51
dc.subject.fieldofresearchcode40
dc.titleHydrophobic surface modification of polymethyl methacrylate by two-dimensional plasma jet array at atmospheric pressure
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
dc.description.versionVersion of Record (VoR)
gro.rights.copyright© 2018 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in 36, 061302 (2018) and may be found at https://doi.org/10.1116/1.5030718.
gro.hasfulltextFull Text
gro.griffith.authorOstrikov, Ken


Files in this item

This item appears in the following Collection(s)

  • Journal articles
    Contains articles published by Griffith authors in scholarly journals.

Show simple item record