Influence of an Assumed Size of a Dispersoid on the Calculated Flow Curves of Immiscible Polymer Blends by Concentric Multi-layer Model

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  • 非相容ポリマーブレンド系の流動特性の計算モデル-分散粒径の影響-

Abstract

The effect of assumed size of dispersoid was investigated by the concentric multi-layer model proposed earlier for simulating the flow of immiscible polymer blend through a tube. The flow curves of PC, SAN and their blends were calculated by changing the diameter (d) of a dispersoid from 0.01 μm to 100 μm. The influence of diameter on calculated results was negligible provided that the diameter was 1 μm (d/2R1=2×10-3, R1; radius of a capillary) or less. The calculated result was not affected by the order of layers, i.e., the matter of which component was in contact with the tube wall, when the assumed particle size was small, and was in good agreement with the observed result.

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