Polyimide film surface modification by nanosecond high voltage pulse driven electrical discharges in water

Camelia Miron, Camelia Hulubei, Ion Sava, Antje Quade, Anna Steuer, Klaus Dieter Weltmann, Juergen F. Kolb

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Nanosecond high voltage pulses of 10 ns duration were used to generate pulsed discharges in distilled water for surface modifications of the aromatic and partially aromatic polyimides. Optical emission spectroscopy has shown the formation of excited speciesin plasma due to water dissociation and ionization. Molecular bands of hydrogen, oxygen, and nitrogen have dominated the emission spectra. The reactive species are likely to be responsible for the observed surface modifications of polymer films which were investigated by FTIR, AFM, XPS, and static contact angle measurements. The surface hydrophobicity of the polyimide films increased with treatment time. The mechanism of surface modification of polyimides treated by nanosecond pulsed discharges was different from previously described interactions with plasmas that were generated with microsecond voltage pulses. Nanosecond high voltage pulses have induced an increase of the unsaturated bondings on the polyimide surface, while the segregation of CF3 groups at the film surface was responsible for the increased surface hydrophobicity when discharges were generated with microsecond high voltage pulses.

Original languageEnglish
Pages (from-to)734-745
Number of pages12
JournalPlasma Processes and Polymers
Volume12
Issue number8
DOIs
Publication statusPublished - 2015 Jan 1
Externally publishedYes

Fingerprint

polyimides
Polyimides
Surface treatment
high voltages
Water
Electric potential
Hydrophobicity
pulses
water
Plasmas
Optical emission spectroscopy
hydrophobicity
Beam plasma interactions
Angle measurement
Polymer films
Discharge (fluid mechanics)
Contact angle
Ionization
Hydrogen
Nitrogen

Keywords

  • plasma in water
  • plasma treatment
  • polyimides
  • surface modification

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Polymers and Plastics

Cite this

Polyimide film surface modification by nanosecond high voltage pulse driven electrical discharges in water. / Miron, Camelia; Hulubei, Camelia; Sava, Ion; Quade, Antje; Steuer, Anna; Weltmann, Klaus Dieter; Kolb, Juergen F.

In: Plasma Processes and Polymers, Vol. 12, No. 8, 01.01.2015, p. 734-745.

Research output: Contribution to journalArticle

Miron, Camelia ; Hulubei, Camelia ; Sava, Ion ; Quade, Antje ; Steuer, Anna ; Weltmann, Klaus Dieter ; Kolb, Juergen F. / Polyimide film surface modification by nanosecond high voltage pulse driven electrical discharges in water. In: Plasma Processes and Polymers. 2015 ; Vol. 12, No. 8. pp. 734-745.
@article{021036740bc545f0a6ef8856b599092f,
title = "Polyimide film surface modification by nanosecond high voltage pulse driven electrical discharges in water",
abstract = "Nanosecond high voltage pulses of 10 ns duration were used to generate pulsed discharges in distilled water for surface modifications of the aromatic and partially aromatic polyimides. Optical emission spectroscopy has shown the formation of excited speciesin plasma due to water dissociation and ionization. Molecular bands of hydrogen, oxygen, and nitrogen have dominated the emission spectra. The reactive species are likely to be responsible for the observed surface modifications of polymer films which were investigated by FTIR, AFM, XPS, and static contact angle measurements. The surface hydrophobicity of the polyimide films increased with treatment time. The mechanism of surface modification of polyimides treated by nanosecond pulsed discharges was different from previously described interactions with plasmas that were generated with microsecond voltage pulses. Nanosecond high voltage pulses have induced an increase of the unsaturated bondings on the polyimide surface, while the segregation of CF3 groups at the film surface was responsible for the increased surface hydrophobicity when discharges were generated with microsecond high voltage pulses.",
keywords = "plasma in water, plasma treatment, polyimides, surface modification",
author = "Camelia Miron and Camelia Hulubei and Ion Sava and Antje Quade and Anna Steuer and Weltmann, {Klaus Dieter} and Kolb, {Juergen F.}",
year = "2015",
month = "1",
day = "1",
doi = "10.1002/ppap.201400170",
language = "English",
volume = "12",
pages = "734--745",
journal = "Plasma Processes and Polymers",
issn = "1612-8850",
publisher = "Wiley-VCH Verlag",
number = "8",

}

TY - JOUR

T1 - Polyimide film surface modification by nanosecond high voltage pulse driven electrical discharges in water

AU - Miron, Camelia

AU - Hulubei, Camelia

AU - Sava, Ion

AU - Quade, Antje

AU - Steuer, Anna

AU - Weltmann, Klaus Dieter

AU - Kolb, Juergen F.

PY - 2015/1/1

Y1 - 2015/1/1

N2 - Nanosecond high voltage pulses of 10 ns duration were used to generate pulsed discharges in distilled water for surface modifications of the aromatic and partially aromatic polyimides. Optical emission spectroscopy has shown the formation of excited speciesin plasma due to water dissociation and ionization. Molecular bands of hydrogen, oxygen, and nitrogen have dominated the emission spectra. The reactive species are likely to be responsible for the observed surface modifications of polymer films which were investigated by FTIR, AFM, XPS, and static contact angle measurements. The surface hydrophobicity of the polyimide films increased with treatment time. The mechanism of surface modification of polyimides treated by nanosecond pulsed discharges was different from previously described interactions with plasmas that were generated with microsecond voltage pulses. Nanosecond high voltage pulses have induced an increase of the unsaturated bondings on the polyimide surface, while the segregation of CF3 groups at the film surface was responsible for the increased surface hydrophobicity when discharges were generated with microsecond high voltage pulses.

AB - Nanosecond high voltage pulses of 10 ns duration were used to generate pulsed discharges in distilled water for surface modifications of the aromatic and partially aromatic polyimides. Optical emission spectroscopy has shown the formation of excited speciesin plasma due to water dissociation and ionization. Molecular bands of hydrogen, oxygen, and nitrogen have dominated the emission spectra. The reactive species are likely to be responsible for the observed surface modifications of polymer films which were investigated by FTIR, AFM, XPS, and static contact angle measurements. The surface hydrophobicity of the polyimide films increased with treatment time. The mechanism of surface modification of polyimides treated by nanosecond pulsed discharges was different from previously described interactions with plasmas that were generated with microsecond voltage pulses. Nanosecond high voltage pulses have induced an increase of the unsaturated bondings on the polyimide surface, while the segregation of CF3 groups at the film surface was responsible for the increased surface hydrophobicity when discharges were generated with microsecond high voltage pulses.

KW - plasma in water

KW - plasma treatment

KW - polyimides

KW - surface modification

UR - http://www.scopus.com/inward/record.url?scp=84939256137&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84939256137&partnerID=8YFLogxK

U2 - 10.1002/ppap.201400170

DO - 10.1002/ppap.201400170

M3 - Article

AN - SCOPUS:84939256137

VL - 12

SP - 734

EP - 745

JO - Plasma Processes and Polymers

JF - Plasma Processes and Polymers

SN - 1612-8850

IS - 8

ER -