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挤出过程聚合物停留时间分布的在线测量新系统 被引量:5

A New In-line Measurement System of Residence Time Distribution in Extruding Processing
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摘要 提出一种新型的物料停留时间分布(RTD,Residence Time Distribution)在线测量装置。基于光纤传感器对熔融聚合物内颜色浓度变化的响应,在稳定挤出后脉冲加入色母粒示踪剂,对光纤传感器的输出实时采集,得到RTD曲线。还对光纤传感器输出与示踪剂浓度的线性关系、RTD测量系统的重现性进行了验证。 A new in-line measurement installation for Residence Time Distribution was performed. The system was based on the optical fiber sensor which detected the color concentration of the melting polymer. When the extruder was in a steady state,a small amount of the color master batch tracer was injected to the bopper as a pulse. The output of the optical fiber sensor was collected by the computer in the extruding process. RTD curve could be obtained. Data reproducibility of the RTD measurement system and the linearity between the output of the optical fiber sensor and the tracer concentration was validated.
出处 《塑料》 CAS CSCD 北大核心 2008年第6期106-108,共3页 Plastics
关键词 停留时间分布 在线测量 光纤传感器 双螺杆挤出机 颜色浓度 Residence Time Distribution on-line measurement optical fiber sensor twin-screw extruder color concentration
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参考文献5

  • 1Sang Myung Lee, Jong Cheol Park, Sang Mook Lee,et all. In-line measurement of residence time distribution in twin-screw extruder using non-destructive ultrasound[ J]. Korea-Australia Rheology Journal, 2005,17 ( 2 ) : 87 - 95.
  • 2Emine Unlu,James F Faller. Geometric mean vs arithmetic mean in extrusion residence time studies[ J]. Polymer Engineering and Science, 2001,41 (5) :743 -751.
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  • 4Guo-Hua Hu,Ilham Kadri. On-line measurement of the residence time distribution in screw extruders[ J]. Polymer Engineering and Science, 1999,39(5) :930-939.
  • 5Ajay Kumar, Girish M Ganjyal, David D Jones,et al. Digital image processing for measurement of RTD in a laboratory extruder[ J]. Journal of Food Engineering ,2006,75 ( 2 ) :237 - 244.

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