V2EX pseudoplastic

Pseudoplastic

释义 Definition

(材料/流变学)假塑性的;剪切变稀的:指某些流体或软材料在受剪切(搅拌、泵送、涂抹等)时黏度下降、流动性增强;剪切力减小时又趋于恢复更高黏度。(常见于涂料、油墨、聚合物溶液、血液等)
(也常用名词:pseudoplasticity,假塑性/剪切变稀行为)

例句 Examples

The shampoo is pseudoplastic, so it pours easily when you squeeze the bottle.
这种洗发水是剪切变稀的,所以你挤瓶子时更容易倒出来。

In processing polymer solutions, pseudoplastic behavior helps reduce pumping energy at high shear rates, while still providing stability when the fluid is at rest.
在加工聚合物溶液时,假塑性(剪切变稀)行为能在高剪切速率下降低泵送能耗,同时在静置时仍保持一定稳定性。

发音 Pronunciation (IPA)

/su.dopls.tk/

词源 Etymology

pseudo-(“假、伪”)+ plastic(“可塑的/塑性的”)构成。这里的“假塑性”并不是“能被塑形”的普通含义,而是流变学里对一种非牛顿流体特性的命名:它看起来像“塑性流动”,但机理和严格意义上的“塑性材料(如宾汉塑性体)”不同,因此称为“pseudo-(假)plastic”。

相关词 Related Words/h2>

文学与著作 Literary Works

  • Rheology: Principles, Measurements, and Applications(Christopher W. Macosko)
  • An Introduction to Rheology(H. A. Barnes, J. F. Hutton, K. Walters)
  • Transport Phenomena(R. B. Bird, W. E. Stewart, E. N. Lightfoot)
  • Dynamics of Polymeric Liquids(R. B. Bird, R. C. Armstrong, O. Hassager)
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