Estimation of the Morphology Development of Immiscible Liquid-Liquid Systems during Single Screw Extrusion

被引：13

作者：

Domingues, N. ^{[1
]}

Gaspar-Cunha, A. ^{[1
]}

Covas, J. A. ^{[1
]}

机构：

[1] Univ Minho, Dept Polymer Engn, P-4800058 Guimaraes, Portugal

来源：

POLYMER ENGINEERING AND SCIENCE | 2010年 / 50卷 / 11期

关键词：

POLYMER BLEND MORPHOLOGY; COMPUTATIONAL MODEL; FLUID-MECHANICS; CHANNEL FLOW; EXTRUDER; COALESCENCE; DISPERSION; DROP;

D O I：

10.1002/pen.21756

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A mathematical model to predict the evolution of the morphology of immiscible liquid-liquid systems in single screw extruders has been developed. The model computes the dimensions of the dispersed phase in the polymeric matrix, taking into account the stretching, break-up, and coalescence phenomena. The corresponding routine was inserted in a process modeling software, describing the flow in a single screw extruder from hopper do die. The drop dimensions were computed along the melting and melt conveying zones. This enabled the study of the morphological evolution of a two-phase liquid system in a single screw extruder, taking into consideration the effects of the material properties, operating conditions, and screw geometry. The limited experimental data obtained was generally in line with the theoretical predictions. POLYM. ENG. SCI., 50:2194-2204, 2010. (C) 2010 Society of Plastics Engineers

引用

页码：2194 / 2204

页数：11

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