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双螺杆挤出机输送段制备PP/TiO2纳米复合材料的反应过程数值模拟

辽宁石油化工大学学报

2016年 36卷第No.4期

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Title

Numerical Simulation of Reaction Process for Preparing PP/TiO2 Nanocomposites in Twin Screw Extruder

作者

高明光张翠翠何婉秋程志飞朱向哲

Authors

Gao Mingguang Zhang Cuicui He Wanqiu Cheng Zhifei Zhu Xiangzhe

单位

(1.辽宁石油化工大学机械工程学院,辽宁抚顺113001;2.廊坊中油朗威工程项目管理有限公司,河北廊坊065000)

Organization

1.School of Mechanical Engineering，Liaoning Shihua University，Fushun Liaoning 113001，China； 2.China Petroleum LONGWAY Engineering Project Management Co.，Ltd.，Langfang Hebei 065000，China

摘要

关键词: 数值模拟, 混合效率, 非等温, 纳米复合材料, 双螺杆挤出机

Abstract

The model and numerical simulation of three-dimensional non-isothermal for sol-gel reaction process of preparing PP/TiO2 nanocomposites between mixing and reaction process in twin screw extruder were established by POLYFLOW software with the finite element method. The effects of screw speed, screw pitch and precursor concentration on the preparation of PP/TiO2 nanocomposites reaction process about mixing efficiency and reaction rate were analyzed. The results showed that the increasing pitch which enhanced the temperature of polymer and improved mixing efficiency in twin screw extruder contributes to the reaction process. The increasing screw speed and precursor concentration were not conducive to the reaction, because of the drop of the fractional conversion.

关键词：

数值模拟; 混合效率; 非等温; 纳米复合材料; 双螺杆挤出机;

Keywords:

Numerical simulation; Mixing efficiency; Non-isothermal; Nanocomposites; Two screw extruder;

基金项目

DOI

10.3969/j.issn.1672-6952.2016.04.011