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2005 Fiscal Year Final Research Report Summary

Dispersion Control of Ceramics and Nano-Carbon Particles Utilizing Phase Separated Structures of Polymers

Research Project

Project/Area Number 16350127
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Polymer/Textile materials
Research InstitutionKyoto Institute of Technology

Principal Investigator

TAKAHASHI Masaoki  Kyoto Institute of Technology, Faculty of Textile Science, Professor, 繊維学部, 教授 (50115870)

Co-Investigator(Kenkyū-buntansha) JINNAI Hiroshi  Kyoto Institute of Technology, Faculty of Textile Science, Associate Professor, 繊維学部, 助教授 (20303935)
Project Period (FY) 2004 – 2005
KeywordsNano-carbon / Zirconia / Polymer blend / Phase separated structure / Bicontinuous structure / Percolation / Fractal dimension / Dispersion control
Research Abstract

1. Dispersion Control of Zirconia Particles in Polymer Blends
Zirconia particles have spherical shape with the average diameter of 0.27μm. In polystyrene (PS)/poly(butyl methacrylate) (PBMA) blend melts, zirconia particles enter exclusively into the PBMA phase due to the adsorption of flexible PBMA chains on the zirconia particles. Dispersion control of zirconia particles is possible utilizing this exclusive localization and phase separated structure such as bicontinuous and droplet/matrix structures with changing the volume fraction of PBMA phase. On the other hand, in blends of polymer chains with somewhat less flexibility, such as PS/poly(methyl methacrylate) (PMMA) blend melts, zirconia particles are not compatible with both components, and form branches and network structure in both phases.
2. Dispersion Control of Nano-Carbon Particles in Polymer Blends
Dispersion state of vapor grown carbon fibers (VGCF) with the average diameter of 150nm and aspect ratio of 67-130 is investigated in polymer blends. Flexible polymer chains with low glass transition temperature Tg can preferentially adsorb on nano-carbon particles due to the lower entropy loss for the adsorption. Exclusive localization of VGCF in high density polyethylene (HDPE) phase is observed in polypropylene (PP)/HDPE blend melts with bicontinuous structure. From measurements of dynamic viscoelasticity and electrical conductivity of the composites, percolation threshold is determined to be 0.95vol% of VGCF after 1 hr annealing at 180℃. The fractal dimension D at the threshold is found to be 1.7. This small D (compared with D = 2.2 for carbon black in rubbers) is due to its fibrous shape and to the orientation along the interface of bicontinuous structure. The percolation threshold of VGCF in the PP/HDPE blend melt can be reduced to 1/2.5 of the threshold in PP or HDPE melts.

  • Research Products

    (20 results)

All 2006 2005 2004

All Journal Article (16 results) Book (4 results)

  • [Journal Article] Dynamic Viscoelasticity in Sol and Gel States for 1,3:2,4-bis-O-(p-methylbenzylidene)-D-sorbitol/molten Polystyrene Systems2005

    • Author(s)
      Toshiaki Kobayashi
    • Journal Title

      J.Society Rheology, Japan 33・5

      Pages: 267-272

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] ナイロン6の等温結晶化過程の動的粘弾性2005

    • Author(s)
      柏原久彦
    • Journal Title

      材料 54・1

      Pages: 56-59

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] CAE用レオロジーの基礎:高分子溶融体のレオロジー2005

    • Author(s)
      高橋雅興
    • Journal Title

      プラスチック成形加工学会誌(成形加工) 17・7

      Pages: 467-474

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Dynamic Viscoelasticity in Sol and Gel States for 1,3:2,4-bis-O-(p-methylbenzylidene)-D-sorbitol/molten Polystyrene Systems2005

    • Author(s)
      T.Kobayashi, M.Takenaka, M.Takahashi, T.Hashimoto
    • Journal Title

      J.Society Rheology, Japan 33(5)

      Pages: 267-272

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Dynamic Viscoelasticity for Nylon6 during Isothermal Crystallization2005

    • Author(s)
      H.Kashihara, M.Takahashi, K.Urayama, T.Takigawa
    • Journal Title

      J.Society Materials Science, Japan 54(1)

      Pages: 56-59

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Fundamentals of Rheology for CAE : Rheology of Polymer Melts2005

    • Author(s)
      M.Takahashi
    • Journal Title

      J.Japan Society Polymer Processing (Seikei Kakou) 17(7)

      Pages: 467-474

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Poly(D-Lactic Acid) as a Rheological Modifier of Poly(L-Lactic Acid) : Shear and Biaxial Extensional Flow Behavior2004

    • Author(s)
      Hideki Yamane
    • Journal Title

      J.Rheology 48・3

      Pages: 599-609

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Comparison in Fractal Dimension between Those Obtained from Structure Factor and Viscoelasticity of Gel Networks of 1,3:2,4-bis-O-(p-Methylbenzylidene)-D-Sorbitol in Polystyrene Melt at Gel Point2004

    • Author(s)
      Mikihito Takenaka
    • Journal Title

      J.Chemical Physics 121・7

      Pages: 3323-3328

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] 分散相粘度が結晶化によって変化するポリマーブレンドの動的粘弾性2004

    • Author(s)
      柏原久彦
    • Journal Title

      日本レオロジー学会誌 32・3

      Pages: 215-219

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Numerical Simulation of Thermoforming Process for a Lightly Cross-linked Poly(methyl methacrylate)2004

    • Author(s)
      Koji Ogura
    • Journal Title

      J.Japan Society Polymer Processing(Seikei Kakou) 16・5

      Pages: 328-334

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] ポリブテン-1の結晶化過程のレオロジー挙動に与えるひずみの効果2004

    • Author(s)
      柏原久彦
    • Journal Title

      材料 53・12

      Pages: 1272-1275

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Poly(D-Lactic Acid) as a Rheological Modifier of Poly(L-Lactic Acid) : Shear and Biaxial Extensional Flow Behavior2004

    • Author(s)
      H.Yamane, K.Sasai, M.Takano, M.Takahashi
    • Journal Title

      J.Rheology 48(3)

      Pages: 599-609

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Comparison in Fractal Dimension between Those Obtained from Structure Factor and Viscoelasticity of Gel Networks of 1,3:2,4-bis-O-(p-Methylbenzylidene)-D-Sorbitol in Polystyrene Melt at Gel Point2004

    • Author(s)
      M.Takenaka, T.Kobayashi, K.Saijo, H.Tanaka, N.Iwase, T.Hashimoto, M.Takahashi
    • Journal Title

      J.Chemical Physics 121(7)

      Pages: 3323-3328

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Dynamic Viscoelastic Properties of Crystalline Polymer Blends - Effect of the Viscosity of Domain Phase -2004

    • Author(s)
      H.Kashihara, M.Takahashi, K.Urayama, T.Takigawa
    • Journal Title

      J.Society Rheology, Japan 32(3)

      Pages: 215-219

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Numerical Simulation of Thermoforming Process fora Lightly Cross-linked Poly(methyl methacrylate)2004

    • Author(s)
      K.Ogura, S.Tanifuji, M.Takahashi
    • Journal Title

      J.Japan Society Polymer Processing (Seikei Kakou) 16(5)

      Pages: 328-334

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Effects of Strains on Rheological Properties in the Course of Isothermal Crystallization of Polybutene-I2004

    • Author(s)
      H.Kashihara, M.Takahashi, K.Urayama, T.Takigawa
    • Journal Title

      J.Society Materials Science, Japan 53(12)

      Pages: 1272-1275

    • Description
      「研究成果報告書概要(欧文)」より
  • [Book] レオロジーデータ・ハンドブック2006

    • Author(s)
      井上正志
    • Total Pages
      546
    • Publisher
      丸善株式会社
    • Description
      「研究成果報告書概要(和文)」より
  • [Book] Rheology Data Handbook2006

    • Author(s)
      T.Inoue, M.Takahashi, et al.
    • Total Pages
      546
    • Publisher
      Maruzen, Co., Ltd.
    • Description
      「研究成果報告書概要(欧文)」より
  • [Book] 高分子材料・技術総覧2004

    • Author(s)
      大武義人
    • Total Pages
      803
    • Publisher
      株式会社産業技術サービスセンター
    • Description
      「研究成果報告書概要(和文)」より
  • [Book] Overview of Polymeric Materials and Technology2004

    • Author(s)
      Y.Otake, K.Tashiro, M.Takahashi, et al.
    • Total Pages
      803
    • Publisher
      Industrial Technology (Sangyo Gijutsu) Service Center, Co., Ltd.
    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2007-12-13  

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