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Low temperature synthesis of fluororesin thin films by plasma excitation of fluorocarbon condensed solid thin films

Research Project

Project/Area Number 17K06816
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Composite materials/Surface and interface engineering
Research InstitutionUniversity of Yamanashi

Principal Investigator

SATO Tetsuya  山梨大学, 大学院総合研究部, 准教授 (60252011)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2019: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywordsプラズマ / フルオロカーボン / 電子衝撃 / クライオ / フッ素 / 温室効果ガス / 極低温 / 凝縮 / フッ素樹脂 / 薄膜 / オクタフルオロシクロブタン / パーフルオロカーボン / 撥水 / 電子照射 / 低温 / アモルファスカーボン / PTFE / 電子励起
Outline of Final Research Achievements

We have obtained the knowledge about the surface reaction for converting (recycling) into a fluororesin thin film at a low temperature below room temperature using a fluorine-containing greenhouse gas. F-containing amorphous carbon thin film (a-C:F) was synthesized by simultaneously irradiating the condensed layer of fluorocarbon gas with slow electrons and metastable excited species generated by DC discharge plasma of He and Ar.
We have accumulated basic data on thin film physical properties such as chemical stability and adhesion strength.We have established a low-temperature synthesis process for highly transparent and highly dense perfluorocarbon (PFC) and dendritic polytetrafluoroethylene (PTFE) that has large irregularities and is superhydrophobic.

Academic Significance and Societal Importance of the Research Achievements

低速電子線誘起反応と水素原子の低温トンネル反応を利用した独自の製膜法を用いて、温室効果ガスの一種で削減対象であるフッ素含有温室効果ガス(F-GHG)を低温で分解し、フッ素含有非晶質カーボン(a-C:F)やPFC薄膜を合成した。表面形状や化学結合状態、水の接触角等の物性を詳細かつ系統的調べ、付加価値の高い機能性薄膜として応用するための基礎的知見を得ることができた。また、既存のプラズマプロセスでは困難であった低融点素材のプラスチックや繊維や和紙表面に高品質のフッ素樹脂薄膜を形成可能とする新規低温合成法の有効性を実証した。F-GHGの除害と機能性薄膜形成を同時に実現できるユニークな方法である。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (4 results)

All 2019 2018 Other

All Presentation (3 results) (of which Int'l Joint Research: 1 results) Remarks (1 results)

  • [Presentation] Synthesis of Super-hydrophobic PTFE Thin Films Using Electronic Excitation of c-C4F8 Condensed Gas2019

    • Author(s)
      Toshihiro Mitani, Tetsuya Sato
    • Organizer
      The 16th Pacific Polymer Conference
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] -C4F8/SiF4混合凝縮層の電子励起によるa-C:Fの低温合成と物性評価2019

    • Author(s)
      三谷隼弘,佐藤哲也 , 塩澤佑一朗, 上垣良信
    • Organizer
      第66回応用物理学会春季学術講演会
    • Related Report
      2018 Research-status Report
  • [Presentation] c-C4F8 凝縮層の電子励起による超撥水性樹状a-C:F の形成2018

    • Author(s)
      三谷 隼弘,上垣 良信, 佐藤 哲也
    • Organizer
      2018年第65回応用物理学会春季学術講演会
    • Related Report
      2017 Research-status Report
  • [Remarks] 山梨大学研究者総覧 佐藤哲也

    • URL

      http://nerdb-re.yamanashi.ac.jp/Profiles/336/0033566/profile.html

    • Related Report
      2017 Research-status Report

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Published: 2017-04-28   Modified: 2021-02-19  

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