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光诱导的聚合物滴水喷

Marufa Akter Upoma¹, Huy Tran¹, Cason Rose¹

¹Department of Mechanical Engineering, Baylor University, Waco, Texas 76798, United States.

Langmuir : the ACS journal of surfaces and colloids

|June 13, 2025

概括

像聚乙烯氧化物这样的水性聚合物的光降解显著增加了滴水喷. 这种环境老化的效应会影响农业化学品喷雾效率和流失,强调需要控制的储存条件.

科学领域:

流体动力学流体动力学
材料科学材料科学材料科学
环境科学环境科学

背景情况:

在诸如喷墨印刷和农业化学喷雾等工业应用中,聚合物落的影响至关重要.
环境因素,如光降解,会影响农业化学品的稳定性和性能.
农业化学品中的辅助老化可能会影响交付效率并增加环境排放量.

研究的目的:

调查光降解对水性聚合物溶液喷行为的影响.
了解模拟的环境衰老影响如何影响与农业化学应用相关的下降动态.

主要方法:

在水溶液中对聚乙烯氧化物 (PEO) 的系统光降解.
对各种韦伯数的滴水喷行为进行实验分析.
包括染料来加速聚合物降解和表面活性剂来研究它们的影响.

主要成果:

与原始溶液相比,光降解PEO溶液的喷增加.
对于降解的聚合物,喷发生在较低的韦伯数下,表明灵敏度增加.
表面活性剂在研究的参数范围内对喷动态的影响最小.

结论:

由于光降解等环境因素导致的聚合物降解直接影响滴水喷.
增加的喷会导致更多的二次液滴,影响应用效率和环境影响.
控制储存条件至关重要,以保持聚合物溶液的物理化学特性,以满足预期的应用.

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