Novel dynamic analytic melting model of polymer with vibration field

作者：Zeng, Guangsheng; Qu, Jinping; Feng, Yanhong

来源：Chinese Journal of Materials Research, 2006, 20(1): 59-63.

• Melting model
• Vibration field

A dynamic analytic melting model in a vibration extruder is presented by introducing vibration field into the melting and extruding process of polymer material. The introduction of vibration field improves the melting and plastication capacity of extruder, and the melting section length decreases as the amplitude and the frequency increase. In the present model, as melting proceeds, the thickness of the melt gradually grows at the expense of the solid bed until eventually the melted material fills the entire cross-section of the screw channel; under the steady condition, the melting section length is unvaried, and the speed that the polymer pellet enters the barrel is equally to the melting rate, as well as the output. When the intensity of vibration arrives at an extremum, increasing the vibration parameters can not lead to a significant change of the melting section length. The processing parameters in the vibration extruders can be predicted by this model, and the optimum condition was obtained.

• 出版日期2006-2
• 单位华南理工大学