The effects of relative humidity and salt concentration on the diameter of hydrophilic polymeric nanofibers obtained by electrospinning: Synergistic effect study by Central Composite Design (CCD)

IF 4.5 3区工程技术 Q1 CHEMISTRY, APPLIED Reactive & Functional Polymers Pub Date : 2024-07-25 DOI:10.1016/j.reactfunctpolym.2024.106013

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Abstract

This research examines the influence of relative humidity and a model salt concentration present in the electrospinning process on the diameter of nanofibers composed of hydrophilic polymers by modifying relative humidity and the salt concentration in the polymer solution, we aim to better understand the mechanisms controlling the modulation of nanofiber diameter.

A mathematical model was established using a central composite design (CCD)-response surface methodology (RSM). It was validated by statistical tests and compared with experimental data. The model accurately represents the specific behavior and diameter of each polymer in relation to relative humidity and salt concentration, and is capable of predicting fiber diameter. Thus, it was found that there is no significant interaction between environmental parameters and added salts causing alterations in the diameter of the fibers produced, except for polyethylene oxide (PEO). At high values of both humidity and salt concentration, a synergy between the factors causes a decrease in fiber diameter.

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相对湿度和盐浓度对电纺丝获得的亲水性聚合物纳米纤维直径的影响：中央复合设计（CCD）的协同效应研究

本研究通过改变聚合物溶液中的相对湿度和盐浓度，研究了电纺丝过程中的相对湿度和盐浓度模型对亲水性聚合物组成的纳米纤维直径的影响，旨在更好地了解纳米纤维直径的调控机制。该数学模型采用了中心复合设计 (CCD) - 响应面方法 (RSM)，并通过统计检验进行了验证，同时与实验数据进行了比较。该模型准确地反映了每种聚合物在相对湿度和盐浓度下的特定行为和直径，并能预测纤维直径。因此，研究发现，除了聚环氧乙烷（PEO）外，环境参数和添加盐之间没有明显的相互作用，不会导致生产的纤维直径发生变化。在湿度和盐浓度都很高的情况下，这些因素之间的协同作用会导致纤维直径减小。

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来源期刊

Reactive & Functional Polymers 工程技术-高分子科学

CiteScore

8.90

自引率

5.90%

发文量

259

审稿时长

27 days

期刊介绍： Reactive & Functional Polymers provides a forum to disseminate original ideas, concepts and developments in the science and technology of polymers with functional groups, which impart specific chemical reactivity or physical, chemical, structural, biological, and pharmacological functionality. The scope covers organic polymers, acting for instance as reagents, catalysts, templates, ion-exchangers, selective sorbents, chelating or antimicrobial agents, drug carriers, sensors, membranes, and hydrogels. This also includes reactive cross-linkable prepolymers and high-performance thermosetting polymers, natural or degradable polymers, conducting polymers, and porous polymers. Original research articles must contain thorough molecular and material characterization data on synthesis of the above polymers in combination with their applications. Applications include but are not limited to catalysis, water or effluent treatment, separations and recovery, electronics and information storage, energy conversion, encapsulation, or adhesion.