聚合物熔体在振动场中的流变行为研究

Study on Rheological Behaviors of Polymer Melts under Vibration

利用自行研制的振动试验装置研究了振动场中聚合物HDPE、PS熔体在不同压力、温度、频率、振幅条件下的流变行为。试验结果表明 ,熔体表观粘度随振动频率的增加而降低 ,但降低的幅度随压力、温度和振幅的不同而不同。

Using vibration experimental apparatus made by the authors,rheological behaviors of HDPE and PS melts under different pressure,temperature,frequency and vibration amplitude are studied.Results show that apparent viscosity of melts decreases with the increase of vibration frequency,but the decreased amplitude changes with different temperature,pressure and vibration amplitude.