A Self-Build Apparatus for Oscillatory Flow Birefringence Measurements in a Co-Cylindrical Geometry

DOI Web Site Web Site 被引用文献5件 参考文献11件
  • Tanaka Reina
    Department of Macromolecular Science, Graduate School of Science, Osaka University Forestry and Forest Products Research Institute, Forest Research and Management Organization
  • Li Shangwei
    Department of Macromolecular Science, Graduate School of Science, Osaka University
  • Kashiwagi Yu
    Department of Macromolecular Science, Graduate School of Science, Osaka University
  • Inoue Tadashi
    Department of Macromolecular Science, Graduate School of Science, Osaka University

この論文をさがす

抄録

<p>We developed a high-sensitive apparatus for oscillatory flow birefringence measurement in a co-cylindrical geometry. The apparatus was comprised of a conventional rheometer, an Argon ion laser, and a lock-in amplifier. The laser was irradiated to samples under sinusoidal strains, and transmitted light intensities were analyzed using the lock-in amplifier to evaluate flow birefringence. TTL signals, which were transformed from sinusoidal strains using a comparator, were used as reference signals for lock-on detection at low frequencies. First, phase shifts between the true strain and TTL reference signal generated by the comparator were calibrated. Next, reliability of the apparatus was assessed using a wormlike micellar solution, whose flow birefringence behavior are well known. Finally, sensitivity of the birefringence measurement was checked using a low birefringent cellulose nanofiber (CNF) dispersion. Flow birefringence behavior of the CNF dispersion became measurable thanks to a long optical pass length of the geometry. The apparatus will be a strong tool to reveal dynamics of low birefringent solutions.</p>

収録刊行物

被引用文献 (5)*注記

もっと見る

参考文献 (11)*注記

もっと見る

関連プロジェクト

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