The dynamic rheological behavior and non-isothermal cold crystallization of poly(ethylene terephthalate)(PET)were studied to reflect the disentanglement effect of the pulsatile extrusion flow field.

• 通过分析PET熔体的动态流变参数和结晶动力学过程的变化,间接证实动态挤出聚合物熔体分子的解缠结作用。