Abstract

Electrospinning has become a robust technique for the cost-effective production of fibrous materials. In a conventional electrospinning process, the produced fibers are fabricated by either vertical or horizontal setups, resulting in isotropic non-woven fibers mats. Many researchers have focused on the influence of various electrospinning parameters, solution parameters and ambient parameters. However, until now less attention has been paid on the impact of gravity on fiber and mat morphologies. This article presents a novel approach for altering the morphology of electrospun TiO₂/PVP nanofiber mats using a simple concept based on different deposition angles. The electrospinning setups used involved five deposition angles (0°, 45°, 90°, 135°, and 180°), which revealed an effect of gravity on fiber mat morphology and fiber diameter. This work provides new prospects toward the design of electrospun fiber mats and provides us with additional options to achieve optimal results.

摘要

电纺已成为一种经济有效的纤维材料生产技术。在常规的电纺丝工艺中，所生产的纤维是通过垂直或水平安装来制造的，从而形成各向同性的非织造纤维毡。许多研究人员集中在各种静电纺丝参数，溶液参数和环境参数的影响上。但是，到目前为止，人们对重力对纤维和毡垫形态的影响的关注较少。本文提出了一种改变电纺TiO ₂形态的新颖方法/ PVP纳米纤维垫使用基于不同沉积角度的简单概念。所使用的静电纺丝设置涉及五个沉积角（0°，45°，90°，135°和180°），这揭示了重力对纤维毡形态和纤维直径的影响。这项工作为电纺纤维毡的设计提供了新的前景，并为我们提供了实现最佳效果的其他选择。