中国塑料 ›› 2022, Vol. 36 ›› Issue (11): 108-111.DOI: 10.19491/j.issn.1001-9278.2022.11.016

• 加工与应用 • 上一篇    下一篇

双螺杆挤出机在高比例溶剂POE脱挥及挤压造粒中的应用

徐斌(), 陈志强, 陈燕飞, 马宁   

  1. 江苏越升科技股份有限公司,南京 211103
  • 收稿日期:2022-06-27 出版日期:2022-11-26 发布日期:2022-11-25
  • 作者简介:徐斌(1969—),男,工程师,从事高分子机械挤出研究,allen.zhang@useon.com

Application of twin⁃screw extruder for high⁃proportion solvent POE devolatilization and granulation

XU Bin(), CHEN Zhiqiang, CHEN Yanfei, MA Ning   

  1. USEON Technology Limited,Nanjing 211103,China
  • Received:2022-06-27 Online:2022-11-26 Published:2022-11-25

摘要:

对双螺杆挤出机在聚烯烃弹性体(POE)制备过程中高比例溶剂脱挥及挤压造粒应用进行了介绍,并经过试验平台验证,探索出“可控分布脱挥技术”,通过脱挥过程中各个区段不同的工艺要求,设置不同的工艺温度和螺杆的组合排列,同时通过合理控制各个区段不同的真空要求;最终利用双螺杆挤出机将POE流体中的高比例溶剂(质量分数为75 %的溶剂)脱挥至50~200 ppm;同时,阐述了在脱挥过程中的技术关键点,这对大型双螺杆脱挥机组的设计起到了良好的技术支撑作用。

关键词: 聚烯烃弹性体, 脱挥, 挤压造粒, 双螺杆挤出机

Abstract:

This paper introduced the application of twin⁃screw extruder for the high⁃proportion solvent polyolefin elastomer (POE) devolatilization and granulation. Using an experiment plate, the “controlled stepwise devolatilization process” was investigated through setting a suitable temperature and configuration of twin screw under the different process requirement of different section and controlling different vacuum of every devolatilization section. A high proportion of solvent (75 wt%) in the POE fluid was devolatilized up to 50~200 ppm through the twin⁃screw extruder. Meanwhile, a key technical point in devolatilization process was described, which provided a design support in the mega⁃extrusion and devolatilization unit.

Key words: polyolefin elastomer, devolatilization, pelletizing, twin?screw extruder

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