相关实验视频

Updated: Jul 28, 2025

Measuring Material Microstructure Under Flow Using 1-2 Plane Flow-Small Angle Neutron Scattering

Measuring Material Microstructure Under Flow Using 1-2 Plane Flow-Small Angle Neutron Scattering

Published on: February 6, 2014

裂变对非离子表面活性剂小粒在剪切流下对齐的影响

Yusuke Koide¹, Susumu Goto¹

¹Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan. y_koide@fm.me.es.osaka-u.ac.jp.

|May 31, 2023

概括

剪切流在低速和高速时不同地影响虫状菌根的对齐. 高速率会导致裂变,抑制对齐并改变与聚合物相比的行为.

科学领域:

软物质物理学软物质物理学
类风病学类风病学类风病学
表面活性剂科学表面活性剂科学

背景情况:

类似虫的微粒是表面活性剂溶液中至关重要的动态聚合物.
它们在剪流下的对齐影响了溶液的特性.
了解胞裂变是预测质行为的关键.

研究的目的:

为了研究在剪切流下类似虫的微粒对齐.
为了阐明流动诱导的细胞裂变对对齐的影响.
为了在类似的流量条件下比较微粒对齐与聚合物.

主要方法:

我们使用了散射粒子动力学 (DPD) 模拟.
模拟了非离子表面活性剂的溶液.
分析了平均定向角和细胞寿命的剪切率依赖性.

主要成果:

鉴定出了两个不同的剪切率调整细胞对齐的模式.
在低剪速 (没有裂变) 时,随着剪速的增加,微粒与流量保持一致.
在高剪速 (发生切割) 时,对齐被抑制.

结论:

流动诱导的裂变显著改变了类似虫的菌根的对齐.
与非裂变聚合物相比,裂变导致独特的对齐行为.
切割减少了有效的放松时间,在高切割速率下抑制了对齐.

更多相关视频

Experimental Measurement of Settling Velocity of Spherical Particles in Unconfined and Confined Surfactant-based Shear Thinning Viscoelastic Fluids

Experimental Measurement of Settling Velocity of Spherical Particles in Unconfined and Confined Surfactant-based Shear Thinning Viscoelastic Fluids

Published on: January 3, 2014

Synthesis of Monocyte-targeting Peptide Amphiphile Micelles for Imaging of Atherosclerosis

Synthesis of Monocyte-targeting Peptide Amphiphile Micelles for Imaging of Atherosclerosis

Published on: November 17, 2017

相关概念视频

Colloids

Colloids

Children at play often make suspensions such as mixtures of mud and water, flour and water, or a suspension of solid pigments in water known as tempera paint. These suspensions are heterogeneous mixtures composed of relatively large particles that are visible to the naked eye or can be seen with a magnifying glass. They are cloudy, and the suspended particles settle out after mixing. On the other hand, a solution is a homogeneous mixture in which no settling occurs and in which the dissolved...