The controlled deposition of electrospun fibers means that the electrospun fibers can be collected in a limited and specified area and can present better applications in the fields of medical treatment, garment making, and 3D printing. In order to study the mechanism of the controlled deposition of electrospun fibers, simulation and experimental methods were used. Specifically, in the electrospinning experiment, circular copper sheets of different diameters were used as collectors. The effect of different collector areas on the morphology of fiber deposition was discussed. The electric field distribution of electrospinning with different specifications of collectors was simulated correspondingly. The experimental results show that, as compared to the traditional large flat collector, the area where the electrospun fibers are deposited is significantly reduced when a smaller circular copper plate was used as a collector. The smaller the area of the collector, the more the fibers tend to deposit at the center area of the collector, and the more likely the morphology of the product formed by the fiber deposition to exhibit a center protrusion shape. The controlled deposition of the electrospun fiber technology can provide more opportunities for the application of the electrospinning technology.

中文翻译：

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电纺纤维可控沉积的机理

电纺纤维的受控沉积意味着可以在有限的特定区域内收集电纺纤维，并且可以在医疗，服装制造和3D打印领域中提供更好的应用。为了研究电纺纤维可控沉积的机理，采用了仿真和实验方法。具体地，在电纺丝实验中，使用不同直径的圆形铜片作为集电器。讨论了不同收集区对纤维沉积形态的影响。相应地模拟了不同规格集电器的静电纺丝的电场分布。实验结果表明，与传统的大型平板式集热器相比，当使用较小的圆形铜板作为集电器时，电纺纤维沉积的面积将大大减少。集电器的面积越小，纤维越倾向于沉积在集电器的中心区域，并且通过纤维沉积形成的产品的形态越有可能呈现出中心突起形状。电纺纤维技术的受控沉积可以为电纺技术的应用提供更多机会。