哈尔滨工业大学学报（英文版）2005，Vol.12Issue(2)：193-196,4.
Shear flow analyses for polymer melt extruding under superimposed vibration
Shear flow analyses for polymer melt extruding under superimposed vibration
摘要
Abstract
The introduction of a vibration force field has a profound influence on the polymer formation process.However, its formation mechanism has not been explored until now. With the application of experimental equipment designed by the authors named "Constant Velocity Type Dynamic Rheometer of Capillary" or (CVDRC),we were able to analyze in detail the whole extrusion process of a polymer melt. We did this after superimposing a sine vibration of small amplitude parallel to the extruding direction of the polymer melt. Then, we created a calculation model to determine the shear stress at the wall of the capillary using a superimposed vibration. We also determined the calculation steps needed to establish the afore-mentioned shear stress. Through measurement and analysis, the instantaneous entry pressure of the capillary, the pressure gradient, and the shear stress of the polymer melt within the capillary under vibration force field can be calculated.关键词
polymer/superimposed vibration/pressure drop/shear stressKey words
polymer/superimposed vibration/pressure drop/shear stress分类
化学化工引用本文复制引用
LIU Yue-jun,FAN Shu-hong,SHI Pu..Shear flow analyses for polymer melt extruding under superimposed vibration[J].哈尔滨工业大学学报（英文版）,2005,12(2):193-196,4.基金项目
Sponsored by the National Natural Science Foundation of China( Grant No. 20027002 ) and the Natural Science Foundation of Hunan Province( Grant No.04JJ40015 ). （ Grant No. 20027002 ）
