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ダウンロード数 : ?
ID 114084
著者
Yoshitani, Yuki Tokushima University
Mitani, Kimiaki Tokushima University
Niibe, Masahito University of Hyogo
Nakano, Yoshitaka Chubu University
Mukai, Takashi Nichia Corporation
キーワード
Air plasma jet
Polypropylene film
Oxygen radical ions
Heat-induced oxidation
Oxygen radicals
Ultraviolet-induced oxidation
資料タイプ
学術雑誌論文
抄録
Polypropylene (PP) film surfaces were treated using air-based nonequilibrium atmospheric pressure plasma jets generated with a twisted wires-cylindrical electrode configuration. For comparison, PP samples were also processed with Ar plasma jets. The flux of charged particles imparted to the polymer surface by the air plasma jet greatly increased with decreases in both the gas flow rate and nozzle-to-sample distance, which was not the case for the Ar plasma jet. Reducing the gas flow rate and the nozzle-to-sample distance greatly enhanced the extent to which the surface was rendered hydrophilic by the air plasma within a short treatment time of 1 min. This enhanced effect is believed to originate from a high concentration of oxygen-based functional polar groups (FPGs) containing C−O/C−OH and C=O/C=O−OH bonds grafted onto the surface. The hydrophilic surfaces resulting from this process also exhibited nanopore structures. The large number of oxygen-based FPGs produced by the air plasma can be attributed primarily to oxygen radical ions impinging from the air plasma on the surface. This can further be attributed secondarily to heat-induced oxidation rather than the sticking of oxygen radicals and UV-induced oxidation from the plasma. The nanoporous structure can also be ascribed to oxidation from UV photogenerated holes.
掲載誌名
Applied Surface Science
ISSN
01694332
cat書誌ID
AA1152169X
出版者
Elsevier
509
開始ページ
144910
発行日
2019-12-04
備考
論文本文は2021-12-04以降公開予定
権利情報
© 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
EDB ID
出版社版DOI
出版社版URL
言語
eng
著者版フラグ
その他
部局
理工学系
技術支援部