华南理工大学学报(自然科学版) ›› 2015, Vol. 43 ›› Issue (7): 8-13.doi: 10.3969/j.issn.1000-565X.2015.07.002

• 材料科学与技术 • 上一篇    下一篇

叶片挤出机中聚合物固体形变的可视化和影响因素

刘环裕 张桂珍 陈佳佳 瞿金平   

  1. 华南理工大学 聚合物新型成型装备国家工程研究中心//聚合物成型加工工程教育部重点实验室,广东 广州 510640
  • 收稿日期:2014-10-13 修回日期:2014-12-11 出版日期:2015-07-25 发布日期:2015-06-03
  • 通信作者: 瞿金平( 1957-) ,男,中国工程院院士,主要从事聚合物成型理论及装备研究. E-mail:jpqu@scut.edu.cn
  • 作者简介:刘环裕( 1989-) ,男,博士,主要从事聚合物成型装备研究. E-mail: liuhuanyu1989@163.com
  • 基金资助:
    国家科技支撑计划项目( 2009BAI84B06,2011BAE15B02)

Visualization of Solid Polymer Deformation in Vane Extruder and Its Influence Factors

Liu Huan-yu Zhang Gui-zhen Chen Jia-jia Qu Jin-ping   

  1. National Engineering Research Center of Novel Equipment for Polymer Processing//Key Laboratory of Polymer Processing Engineering of the Ministry of Education,South China University of Technology,Guangzhou 510640,Guangdong,China
  • Received:2014-10-13 Revised:2014-12-11 Online:2015-07-25 Published:2015-06-03
  • Contact: 瞿金平( 1957-) ,男,中国工程院院士,主要从事聚合物成型理论及装备研究. E-mail:jpqu@scut.edu.cn
  • About author:刘环裕( 1989-) ,男,博士,主要从事聚合物成型装备研究. E-mail: liuhuanyu1989@163.com
  • Supported by:
    Supported by the National Key Technology Research and Development Program of the Ministry of Science and Technology of China ( 2009BAI84B06,2011BAE15B02)

摘要: 采用组装式叶片挤出机在线观察了聚合物固体形变,考察了物料参数、颗粒大小和工艺参数对聚合物固体形变的影响. 结果表明: 固体颗粒会在叶片塑化输运单元的强制挤压作用下产生形变; 高模量的聚合物固体经叶片塑化输运单元作用后产生的塑性形变大; 大颗粒料经叶片塑化输运单元挤压作用后变成薄片,但小颗粒料则经历大的形变后粘连; 聚合物固体颗粒的形变量随着温度升高减小,随着转速的增加增大.

关键词: 叶片挤出机, 聚合物, 形变, 可视化

Abstract: The solid polymer deformation was observed on-line by using an assembled vane extruder,and then the effects of material properties,pellet size and process parameters on the deformation were investigated.The results show that (1) polymer pellets are deformed under the compaction of VPCU;(2) the solid polymer of a higher modulus experiences a larger plastic deformation;(3) big polymer pellets are turned into small slices after extrusion by VPCU is done,while small pellets experience a big deformation and then form bonded structure;and (4) the solid polymer deformation decreases with the rise of temperature as well as with the decrease of rotor speeds.

Key words: vane extruder, polymers, deformation, visualization

中图分类号: