市販ティッシュコンディショナーの組成と流動特性 Composition and Flow Properties of Commercial Tissue Conditioners

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著者

    • 細谷 誠 HOSOTANI Makoto
    • 東北大学歯学部歯科補綴学第一講座 1st Department of Prosthetic Dentistry, School of Dentistry, Tohoku University
    • 八代 浩次 YASHIRO Kohji
    • 東北大学歯学部歯科補綴学第一講座 1st Department of Prosthetic Dentistry, School of Dentistry, Tohoku University
    • 豊田 丈爾 TOYODA Johji
    • 東北大学歯学部歯科補綴学第一講座 1st Department of Prosthetic Dentistry, School of Dentistry, Tohoku University
    • 泉田 明男 IZUMIDA Akio
    • 東北大学歯学部歯科補綴学第一講座 1st Department of Prosthetic Dentistry, School of Dentistry, Tohoku University
    • 依田 正信 YODA Masanobu
    • 東北大学歯学部歯科補綴学第一講座 1st Department of Prosthetic Dentistry, School of Dentistry, Tohoku University
    • 奥野 攻 OKUNO Osamu
    • 東北大学歯学部歯科理工学講座 Department of Dental Materials Science, School of Dentistry, Tohoku University
    • 木村 幸平 KIMURA Kouhei
    • 東北大学歯学部歯科補綴学第一講座 1st Department of Prosthetic Dentistry, School of Dentistry, Tohoku University

抄録

In this study, the relationship between the composition and the flow properties of three commercial tissue conditioners was investigated. Analysis of the composition was chiefly done by infrared spectroscopy (IR). As for the liquid, plasticizer was qualitatively determined and the content of alcohol was measured by distillation. The characteristics of polymer powders were obtained by means of gel permeation chromatography (GPC), particle size analyzer and SEM. As for the flow property, the apparent viscosity of a mixture of liquid and powder was measured by a cone and plate rotational viscometer.<BR>As a result, the liquid was a mixture of a phthalic ester plasticizer (dibutyl phthalate) with up to 13% ethyl alcohol. The polymer powders generally consisted of polyethyl methacrylate (PEMA), but one was a blend of PEMA and polyisobutyl methacrylate (iso-PBMA).<BR>The viscosities of mixtures were found to increase rapidly with an increase in the ethyl alcohol content, and an increase in temperature. Further, the viscosity curve of the tissue conditioner, of which the powder was a blend of PEMA and iso-PBMA, showed characteristic behavior. Thus it was suggested that the flow property of the tissue conditioner was affected by the molecular structure of the polymer powder.

収録刊行物

  • 日本補綴歯科學會雜誌 = The journal of the Japan Prosthodontic Society

    日本補綴歯科學會雜誌 = The journal of the Japan Prosthodontic Society 43(3), 551-558, 1999-06-10

    Japan Prosthodontic Society

参考文献:  13件中 1-13件 を表示

被引用文献:  1件中 1-1件 を表示

各種コード

  • NII論文ID(NAID)
    10008173672
  • NII書誌ID(NCID)
    AN00197911
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    03895386
  • データ提供元
    CJP書誌  CJP引用  J-STAGE 
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