相关实验视频

Updated: Jul 5, 2025

Application of Voltage in Dynamic Light Scattering Particle Size Analysis

Application of Voltage in Dynamic Light Scattering Particle Size Analysis

Published on: January 24, 2020

关于聚烯胺对电场影响的分子动力学研究油入水乳液的脱乳化

Shasha Liu^1,2, Yawen Yuan¹, Lin Wang¹

¹School of Chemistry and Chemical Engineering, Qilu Normal University, Jinan 250100, PR China.

Langmuir : the ACS journal of surfaces and colloids

|January 25, 2024

概括

在产生的水中部分化聚烯胺 (HPAM) 影响电场脱. HPAM促进油滴凝聚,但通过与水和离子相互作用来阻碍它们的运动.

科学领域:

化学工程是化学工程的重要组成部分.
材料科学材料科学材料科学
物理化学物理化学

背景情况:

生产的水通常含有水溶性聚合物,如部分化聚烯胺 (HPAM).
有效的脱硫对于石油行业的油水分离至关重要.
电场辅助脱是一种广泛使用的分离技术.

研究的目的:

调查HPAM对电场辅助脱硫过程的影响.
阐明HPAM对油滴凝聚和行为的作用背后的分子机制.

主要方法:

用分子动力学模拟来建模脱过程.
在电场下的HPAM和无HPAM系统之间进行了比较.
分析包括辐射分布函数和分子之间的相互作用能量.

主要成果:

HPAM促进了附近油滴的凝聚,但阻碍了它们的变形和迁移.
通过强烈的水相互作用,HPAM降低了水相的水友性.
离子 (Na+) 与HPAM释放的水分子相互作用,影响水的运动.

结论:

在电场脱过程中,HPAM显著改变了油滴动态.
HPAM,水和离子之间的相互作用是理解观察到的效应的关键.
由于HPAM存在,因此需要针对产生的水处理量身定制的脱策略.

更多相关视频

Synthesis of Phase-shift Nanoemulsions with Narrow Size Distributions for Acoustic Droplet Vaporization and Bubble-enhanced Ultrasound-mediated Ablation

Synthesis of Phase-shift Nanoemulsions with Narrow Size Distributions for Acoustic Droplet Vaporization and Bubble-enhanced Ultrasound-mediated Ablation

Published on: September 13, 2012

Generation of Size-controlled Poly ethylene Glycol Diacrylate Droplets via Semi-3-Dimensional Flow Focusing Microfluidic Devices

Generation of Size-controlled Poly ethylene Glycol Diacrylate Droplets via Semi-3-Dimensional Flow Focusing Microfluidic Devices

Published on: July 3, 2018

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...