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线性聚乙烯熔体的强异常流动行为源于其高分子量，分子链缠结点多，熔体的界面吸附性强。界面吸附作用的极度变化是造成异常流动的外因，而口模壁附近吸附链和未吸附链间的缠结-解缠结动力学振荡，则是导致挤出压力振荡的内因。用聚合填充法制备的UHMWPE/Kaolin和HDPE／Kaolin体系可以顺利地由毛细管挤出，且填充量增大，体系表现粘度下降，加工流动性变好。在滑动动力学边界条件下，熔体在管壁附近所承受的真实剪切速率和剪应力减少。管壁处粘性作用的下降（脱附）和物料实际承受的弹性变形能减少，是第二光滑区中获得稳定滑动流动的重要条件。
The strong anomalous flow behavior of the linear polyethylene melt stems from its high molecular weight, the number of molecular chains entangled, and the melt’s interfacial adsorption. The extreme change of adsorption at the interface is the external cause of the abnormal flow. The entanglement-entanglement kinetic oscillation between the adsorbed and unadsorbed chains near the die wall is the internal cause of the oscillation of the extrusion pressure. The UHMWPE / Kaolin and HDPE / Kaolin systems prepared by the polymerization method can be smoothly extruded from the capillaries and the loadings increase, the viscosity of the system decreases, and the processing fluidity becomes better. Under the sliding dynamics boundary conditions, the true shear rate and shear stress experienced by the melt near the tube wall decrease. Decreasing the viscosity of the pipe wall (desorption) and the material to withstand the actual elastic deformation can be reduced, is the second smooth area to obtain a stable sliding flow of the important conditions.