在流动下生物来源的棒状合体和聚合物的对齐-理关系
Marvin Detert1,2, Tatiana Porto Santos3, Amy Q Shen3
1Physics of Fluids, Max Planck Center Twente for Complex Fluid Dynamics, and J. M. Burgers Centre for Fluid Dynamics, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands.
Biomacromolecules
|June 26, 2023
概括
这项研究揭示了杆状合体和聚合物的对齐及其粘度之间的普遍关系. 这一发现简化了在像纤维线这样的应用中预测流体行为.
科学领域:
- 类风病学 类风病学 类风病学
- 材料科学 材料科学 材料科学
- 体科学 体科学 体科学
背景情况:
- 有棒状合物 (RC) 和聚合物 (RP) 的流体对于纤维织等应用至关重要.
- 了解它们的流动诱导的对齐和质性质之间的联系是具有挑战性的.
研究的目的:
- 为了研究生物来源的RC和RP流体中的对齐-rheology关系.
- 建立一种连接流体结构和粘度的普遍趋势.
主要方法:
- 同时测量剪切粘度和流体异构性.
- 对各种生物来源的RC和RP系统应用的整形切割流.
主要成果:
- 在特定粘度 (ηsp) 和RC和RP的对齐之间观察到一种普遍趋势.
- 这一趋势对于所有测试系统的度是独立的.
- 开发了一个无维参数 (β) 来预测零剪速粘度 (η0,sp).
结论:
- 流动诱导的结构变化和RC和RP流体的质性质之间存在着强烈的联系.
- 这些发现可以帮助开发构成模型来预测流体行为.
- 这项研究提供了对棒状颗粒悬浮体复杂流动动学的见解.
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