ガンマ線照射超高分子量ポリエチレンの酸化劣化の評価

DOI Web Site Web Site 参考文献12件
  • 若松 郁也
    東海大学大学院工学研究科医用生体工学専攻
  • 菊川 久夫
    東海大学大学院工学研究科医用生体工学専攻 東海大学工学部医工学科
  • 淺香 隆
    東海大学工学部応用化学科

書誌事項

タイトル別名
  • Evaluation of Oxidative Degradation of Ultra-High-Molecular-Weight Polyethylene Irradiated by Gamma-Ray
  • ガンマセン ショウシャ チョウコウブンシリョウ ポリエチレン ノ サンカ レッカ ノ ヒョウカ

この論文をさがす

抄録

<p>In this study, the oxidative degradation of gamma-irradiated ultra-high-molecular-weight polyethylene (UHMWPE) was evaluated. Tensile yield stress, Young’s modulus, and Vickers hardness were measured to characterize oxidative deterioration. Furthermore, we evaluated the existence of residual radicals by the electron spin resonance (ESR) analysis, and discussed the relationship between ESR spectra change and mechanical property indexes. In the tensile test of small UHMWPE specimens, it is often difficult to measure the strain. Therefore, we tried to estimate the Young’s modulus simply by using Hertz’s theory of elastic contact, and confirmed its usefulness. It is possible to estimate the tensile Young’s modulus from the indentation test in this experimental range. This method is applicable to evaluate the relationship between mechanical properties such as Young’s modulus and ESR properties over a long term after irradiation.</p>

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 88 (2), 31-37, 2024-02-01

    公益社団法人 日本金属学会

参考文献 (12)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ