采用双毛细管流变仪详细研究了聚乙烯及其共聚物的挤出畸变、管壁滑移及挤出压力振荡现象。
The effect of blending was investigated by analyzing the viscoelasticity, pressure oscillation, flow curves and extrudate appearance.
该离子印迹聚合物多孔小球可以通过控挤出压力和振荡频率来控制尺寸大小。
The size dimension of the ion imprinting polymer porous small ball can be controlled by controlling the extrusion pressure and oscillation frequency.
挤出温度升高，压力振荡频率减小，周期变大，外推滑移长度有变小趋势。
When the extrusion temperature was increased, the pressure vibration frequency and critical slid length decreased, while the vibration period increased.
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