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Flow Analysis in Polymer Processing of Fiber Reinforced liquid Crystalline Polymers

Research Project

Project/Area Number 05452153
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field Fluid engineering
Research InstitutionOsaka University

Principal Investigator

NAKAMURA Kiyoji  Faculty of Engineering, Osaka University Professor, 工学部, 教授 (30029178)

Co-Investigator(Kenkyū-buntansha) YASUDA Kazunori  Faculty of Engineering, Osaka University Assistant, 工学部, 助手 (80239756)
MORI Noriyasu  Faculty of Engineering, Osaka University Associate Prof., 工学部, 助教授 (30124069)
Project Period (FY) 1993 – 1994
Project Status Completed (Fiscal Year 1994)
Budget Amount *help
¥7,400,000 (Direct Cost: ¥7,400,000)
Fiscal Year 1994: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1993: ¥6,900,000 (Direct Cost: ¥6,900,000)
KeywordsLiquid crystalline polymers / TIF model / Doi model / Cylinder array / Order parameter / HPC solution / Radial flow / Fiber orientation / 円柱周りの流れ / 円柱列流路 / 分子配向 / 差分法
Research Abstract

In this work we analyzed the velocity fields and the molecular orientations in the polymer processing of fiber reinforced liquid crystalline polymers (LCPs) which had both reinforcements by fiber orientation and molecular one. The TIF model and the Doi model are applied to the numerical simulations of the flows of LCPs in the model geometries ; parallel plates containing a cylinder and cylinder arrays. The experimental investigations are also performed by using the solutions of hydroxypropylcellulose (HPC). Results obtained in this work are as follows
1. The distribution of molecular alignment in the flow between parallel plates containing a crylinder is obtained by using the TIF model and the Doi model. From the result it is showed that a special attention should be paied to the occurrence of weld behind the crylinder in the flow of LCPs beteen fibers.
2. In the simulation by the TIF model it becomes clear the molecular alignment is largely affected by diverging and converging flows in the cylinder array geometries.
3. In the experiment of the radial flow of fiber susupensions in LCPs between circular parallel paltes, it is found that order parameter of fiber orientation in liquid crystal phases is less than that in isotropic phase. It is suggested that micro inhomogeneity in a velocity field in the liquid crystal phase of HPC solutions is one of this reason.

Report

(3 results)
  • 1994 Annual Research Report   Final Research Report Summary
  • 1993 Annual Research Report
  • Research Products

    (13 results)

All Other

All Publications (13 results)

  • [Publications] 森教安、辻裕、中村喜代次: "円柱を有する平行平板間流路における液晶高分子の流れのシミュレーション" 日本機械学会論文集(B編). 60. 782-788 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] N.Mori,Y.Tsuji,K.Nakamura and C.Yoshikawa: "Numerical Simulations of the flow of liquid crystalline polymers between parallel plates containing a cylinder" J.Non-Newtonian Fluid Mech.56. 85-97 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] N.Mori,Y.Tsuji and K.Nakamura: "FLOW OF LIQUID CRYSTALLINE POLYMERS THROUGH A CHANNEL CONTAINING A CYLINDER" Proc.of PCR'94. 259-260 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 森教安、中村喜代次: "円柱列を通過する液晶高分子の流れのシミュレーション" レオロジー学会誌. (掲載予定).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] M.Mori: "'Numerical Simulation of Flows of Liquid Crystalline Polymers through Parallel Plates Containig a Cylinder'" Trans.JSME (B). Vol.60. 782-788 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] M.Mori: "'Numerical Simulations of the flow of liquid crystalline polymers between parallel plates containing a cylinder'" J.Non-Newtonian Fluid Mech.Vol.56. 85-97 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] M.Mori: "'FLOW OF LIQUID CRYSTALLINE POLYMERS THROUGH A CHANNEL CONTAINING A CYLINDER'" Proc.PCR'94. 259-260 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] M.Mori: "'Numerical Simulation of Flows of Liquid Crystalline Polymers through Cylinder Arrays'" NIHON REOROJI GAKKAISHI. (to be published).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] N.Mori,Y.Tsuji and K.Nakamura: "FLOW OF LIQUID CRYSTALLINE POLYMERS THROUGH A CHANNEL CONTAINING A CYLINDER" Proc.,Pacific Conference on Rheology and Polymer Processing. 259-260 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] N.Mori,Y.Tsuji,K.Nakamura,C.Yoshikawa: "Numerical Simulations of the flow of liquid crystalline polymers between parallel plates containing a cylinder" J.Non-Newtonian Fluid Mech.56. 85-97 (1995)

    • Related Report
      1994 Annual Research Report
  • [Publications] 森教安,中村喜代次: "円柱列を通過する液晶高分子の流れのシミュレーション" レオロジー学会誌. (掲載予定).

    • Related Report
      1994 Annual Research Report
  • [Publications] 辻裕,森教安,中村喜代次: "液晶高分子の流れのシミュレーション(円柱を有する平行平板流路流れ)" 日本繊維機会学会第46回年次大会研究発表論文集. 208-209 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 森教安,辻裕,中村喜代次: "円柱を有する平行平板間流路における液晶高分子の流れのシミュレーション" 機械学会論文集(B編). 60(掲載予定). (1994)

    • Related Report
      1993 Annual Research Report

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Published: 1993-04-01   Modified: 2016-04-21  

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