Plasma Processes and Polymers

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Online ISSN: 1612-8869

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Recently Published Articles

  1. Linewidth Control and the Improved Adhesion of Inkjet-Printed Ag on Polyimide Substrate, Textured Using Near-Atmospheric Pressure Plasmas

    Mu Kyeom Mun, Jin Woo Park and Geun Young Yeom

    Article first published online: 8 FEB 2016 | DOI: 10.1002/ppap.201500222

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    Effect of polyimide surface modification – using near-atmospheric He/O2 pressure plasmas – on the line width and adhesion of inkjet-printed Ag was investigated by texturing using spray-coated graphene flakes and modifying the chemical composition of the polyimide surface with a SF6 plasma. By texturing and surface modification with the SF6 plasma, the inkjet-printed Ag line exhibited the increased adhesion strength of Ag film in addition to the decreased linewidth by about 10 times.

  2. Energy Conversion Efficiency in Plasma Polymerization – A Comparison of Low- and Atmospheric-Pressure Processes

    Dirk Hegemann, Bernard Nisol, Sean Watson and Michael R. Wertheimer

    Article first published online: 8 FEB 2016 | DOI: 10.1002/ppap.201500224

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    In our two laboratories, we have developed methods for measuringEm (or the roughly equivalent Ea), energy absorbed from the plasma by a monomer molecule, in low- (LP) and atmospheric-pressure (AP) discharges. We propose a new “ECE” parameter that allows direct comparison of LP and AP plasma polymerization experiments; good agreement is found in the case of three model monomer molecules, ethane, acetylene, and acrylic acid (AAc).

  3. Deposition of Cu/a-C:H Nanocomposite Films

    Jan Hanuš, Tereza Steinhartová, Ondřej Kylián, Jaroslav Kousal, Petr Malinský, Andrei Choukourov, Anna Macková and Hynek Biederman

    Article first published online: 1 FEB 2016 | DOI: 10.1002/ppap.201500208

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    Currently, the most often used technology for metal/a-C:H nanocomposite films deposition is based on the combination of PECVD with simultaneous magnetron sputtering of metal target. This approach suffers from the impossibility to control independently the matrix properties and NPs filling factor and size distribution. It is shown on example of Cu/a-C:H nanocomposites that this principal drawback may be overcome by a PECVD combined with the deposition of Cu NPs by means of gas aggregation source.

  4. A μs-Pulsed Dielectric Barrier Discharge Source: Physical Characterization and Biological Effects on Human Skin Fibroblasts

    Regina Tiede, Joanna Hirschberg, Wolfgang Viöl and Steffen Emmert

    Article first published online: 29 JAN 2016 | DOI: 10.1002/ppap.201500190

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    Biocompatible atmospheric pressure plasma is a new therapeutic approach in medicine with a variety of possible application fields. Especially for treatments of dermatological diseases atmospheric pressure plasma seems to be beneficial. In this article a new μs-pulsed dielectric barrier discharge with a phosphate buffered saline-electrode is introduced. Furthermore, we provide a general physical characterization of the device, as well as a risk assessment of post-plasma biological effects on human skin fibroblasts and effects on DNA. Resulting data are discussed regarding safety aspects for medical use.

  5. Designing Hydrophobicity of the PLA Polymer Blend Surfaces by ICP Etching

    Domagoj Vrsaljko, Ivana Grčić, Cédric Guyon, Guillaume Schelcher and Michael Tatoulian

    Article first published online: 27 JAN 2016 | DOI: 10.1002/ppap.201500218

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    A novel method for designing hydrophobicity of the PLA/PE-LD blends by creating specific surface topography is proposed. Blends are etched by using ICP before the fluorocarbon-based coating treatment. During the surface treatment process PLA is etched more than PE-LD and “island-like” surface morphology is created, which after the coating treatment has very high contact angle (>120°).

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