辽宁石油化工大学学报

辽宁石油化工大学学报 ›› 2016, Vol. 36 ›› Issue (4): 47-53.DOI: 10.3969/j.issn.1672-6952.2016.04.011

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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

高明光1,张翠翠1,何婉秋1,程志飞2,朱向哲1   

  1. (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)
  • 收稿日期:2016-03-17 修回日期:2016-04-15 出版日期:2016-07-20 发布日期:2016-08-24
  • 通讯作者: 张翠翠(1982-),女,硕士,讲师,从事新型石化装备等方面的研究;E-mail:zhangcc1982@126.com。
  • 作者简介:高明光(1987-),男,硕士研究生,从事新型石化装备等方面的研究;E-mail:302939962@qq.com。

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

Gao Mingguang1Zhang Cuicui1He Wanqiu1Cheng Zhifei2Zhu Xiangzhe1   

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

  • Received:2016-03-17 Revised:2016-04-15 Published:2016-07-20 Online:2016-08-24
  • Supported by:
    辽宁省自然科学基金项目(20150142)。

摘要: 采用有限元法,利用POLYFLOW 软件,建立双螺杆挤出机输送段三维非等温模型,数值模拟了双螺杆挤出机输送段中通过溶胶-凝胶法制备聚丙烯/二氧化钛(PP/TiO2)纳米复合材料的反应过程,分析了螺杆转速、螺距、前驱体质量分数等控制条件对PP/TiO2纳米复合材料的混合效率及反应速率的影响。结果表明,随着螺杆螺距的增加,挤出机内物料温度逐渐升高,混合效率逐渐增大,平均转化率也逐渐升高;增加转速和前躯体质量分数,平均转化率降低,不利于反应的进行。

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.

Key words: Numerical simulation, Mixing efficiency, Non-isothermal, Nanocomposites, Two screw extruder

引用本文

高明光, 张翠翠, 何婉秋, 程志飞, 朱向哲. 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[J]. 辽宁石油化工大学学报, 2016, 36(4): 47-53.

Gao Mingguang, Zhang Cuicui, He Wanqiu, Cheng Zhifei, Zhu Xiangzhe.

Numerical Simulation of Reaction Process for Preparing PP/TiO2 Nanocomposites in Twin Screw Extruder[J]. Journal of Liaoning Petrochemical University, 2016, 36(4): 47-53.

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