日本接着学会誌
Online ISSN : 2187-4816
Print ISSN : 0916-4812
ISSN-L : 0916-4812
57 巻, 7 号
選択された号の論文の5件中1~5を表示しています
総説
  • 足立 馨
    2021 年57 巻7 号 p. 291-297
    発行日: 2021/07/01
    公開日: 2024/11/02
    ジャーナル フリー

    In order to prevent surface color change of the metals and generation of metal oxide on the surface, variety

    of approaches has been investigated for many years. Here, polymeric molecular coatings of polymers having

    a thiol group at the chain end were reviewed. The polymeric molecular coatings have advantages in simple

    preparation by immersion of the specimens into solution of the thiol-terminated polymers, and in low electric

    resistance on the metal surface. High oxidation resistance property on metal surface with the molecular

    coatings was evaluated by surface electrical resistance measurements after heat treatment of the specimen in

    air. Quantitative evaluation of metal oxide on the surface by cyclic voltammetry measurements supports the

    property of the coatings. Quantitative evaluation also showed that the higher air oxidation resistance property

    was provided by longer polymer chain of the coating, whereas shorter chain gave higher electrochemical

    oxidation resistance properties on the surface. Versatility of the polymeric molecular coatings such as PMMA

    coatings and polymeric coatings on nickel is briefly reviewed as well.

技術論文
  • 成田 充, 中村 学, 黒木 智之, 大久保 雅章
    2021 年57 巻7 号 p. 280-290
    発行日: 2021/07/01
    公開日: 2024/10/31
    ジャーナル フリー

    アルゴンとアクリル酸を用いた大気圧非熱プラズマ(NTP)グラフト重合技術を利用して,ポリテトラフ

    ルオロエチレン(PTFE)フイルム表面の接着を強化し,最大化した。このプロセスにより,PTFE を誘電体

    材料として,導体との複合材料を作成し,他のプロセスでは製造困難なフレキシブル高周波同軸ケーブル

    アセンブリを製造することができる。ケーブルアセンブリに必要な接着力を処理されたPTFE フイルムを

    金属に接着し,T 型はく離試験を行うことで評価した。単位幅当たりの平均接着強度4.9 N/mm をアクリル

    酸の蒸発温度が50℃で,アルゴン流量が40 L/min の条件で達成した。処理面の物理的特性を走査型電子顕

    微鏡とX 線光電子分光法で分析した。粒子状の球状ポリマーで表面が覆われており,このことにより接着

    強度が大幅に向上したと考えられる。本論文で報告する結果は,PTFE の表面処理条件を最適化すること

    に役立ち,健康管理をはじめとする様々な分野への応用が拡大する。

    *

研究論文
研究論文
解説23.SDGs に対応するためのポリマー材料開発最前線
  • 望月 政嗣
    2021 年57 巻7 号 p. 298-311
    発行日: 2021年
    公開日: 2026/04/03
    ジャーナル フリー

    Synthetic polymer products made from oil as their feedstock source of the 20 century has led to three big problems, exhaustion of oil reserves, increases in greenhouse gas emission, and solid waste management like ocean contamination by plastics. In the coming 21st century, a sustainable social system from the view point of feedstock resource reservation, reduction of greenhouse gas emission and solid wastes management is expected to emerge. The current crisis in solid waste management, in particular, has led to focused attention on the development of bio-based polymers such as polylactic acid(PLA)that can biodegrade in the natural environment in soil, in sea water, or in the course of bio-recycling like composting. PLA is not only a biodegradable plastic but also smart plastic that can cover from single use to durable product applications required high performance, owing to the advanced technologies in addition to its inherent biodegradation mechanism. Also PLA has excellent antibacterial/antifungal property, regardless of its biodegradability. In this article, biodegradation mechanism, the key performance features and potential applications of PLA are discussed.

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