结果表明，UHMWPS最显著的流变特征为超高的熔体粘度和低剪切速率下出现不稳定流动。
It was found that the rheological behavior of UHMWPS is remarkably characterized by its unstable flow at low critical shear rate and ultrahigh melt viscosity.
在相同排量下，压裂液在薄层裂缝中流动剪切速率高，粘度低。
At the same discharge, flow shear rate of fracture fluid is high in the fracture of the thin layer, and its viscosity is low.
纺丝原液粘度随着温度、剪切速率的增大而降低，过了临界切变速率后粘度会急剧下降，但在低剪切速率区粘度基本不变。
The viscosity dropped with the increase of temperature and shearing rate and decreased drastically over critical shearing rate, but remained almost unchanged at lower shearing rates.
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