黏流态(英文名称viscous state)又称塑性态(plastic state),高分子物理流变学的专用术语。其物理意义为无定形高分子聚合物在较高温度,较大外力长时间的作用下所处的力学状态。其特征是会产生随着时间延长而增长的不可逆形变,产生流动的粘液,高聚物如合成塑料加工成型、合成纤维纺丝等,都是在高聚物的黏流态下进行的。
考察了其粘均相对分子质量、质量分数、温度及流态对减阻效率、抗剪切稳定性的影响;
The effects of PLMA′s relative molecular mass, content, temperature and flow state on the drag reduction effectiveness and the shear stability were discussed.
因此,可以根据流态特征来估计该原油的拐点温度,为选择合适的降粘方法和降粘深度提供了技术指导。
So flow pattern character can be used to estimate the flex point temperature of the crude oil, which will help for selecting the available viscosity reducing method and the viscosity reduction depth.
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