Article
  • Effect of Filler Particle Size on the Rheological Properties of Suspension 2. Glass Bead Suspended in Aqueous PVA solution
  • Kim KU, Kim KS, Kim YS
  • 충진제 입도가 현탁계의 점도에 미치는 영향: 2. 유리구-PVA
  • 김광웅, 김공수, 김영식
Abstract
The viscosity behavior of polyvinyl alcohol (PVA) aqueous solution suspended with galss bead was examined in terms of glass bead concentration, particle size, and particle size distribution. Almost Newtonian viscosity behavior of PVA aqueous solution became more non-Newtonian with increasing glass bead content. At the high glass bead loadings, there was a clear evidence of yield stress for PVA-glass bead suspensions. The relative viscosity became lower for the wider particle size distribution for both monomodal and multimodal systems. In other words, the maximum packing fraction became higher for the wider particle size distribution.

수용성 폴리비닐 알콜(PVA)에 유리구를 현탁시킨 계의 점도 거동을 유리구의 농도, 입자크기 및 입자크기분포를 변화시켜 조사하였다. PVA 수용액은 거의 뉴톤성을 나타내었으나 유리구의 함량이 증가할수록 점차 비뉴톤성이 더 강하게 나타났다. 그리고 유리구의 함량이 높은 때 PVA-유리구 현탁계는 뚜렷한 항복응력을 나타내었다. 단일 분포 또는 다상분포에 상관없이 입자분포가 넓어짐에 따라 비점도는 낮아졌다. 즉 입자분포가 넓어짐에 따라 입자의 최대 충전률은 높아졌다.

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  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2022 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 1991; 15(1): 8-14

    Published online Feb 25, 1991