Numerous experimental data indicate that higher viscosity solutions make it easier to obtain coarser fibers. However, the influences of viscosity on the whipping behavior of the jet and their subsequent impacts on the formation of terminal fiber during electrospinning remain topics of ongoing research. Simulation model and experiment presented in this study aim to solve these problems. The simulation model alters the dimensionless parameter Fve to predict the impacts of different viscosities on the bending behavior of the electrospun jet, while the experiment observes this behavior under different viscosities by regulating the solution concentration. The consistency of the simulation and experimental data implies the accuracy of the conclusions in this paper. Furthermore, the simulation model and experiment have demonstrated that a higher viscosity jet results in a smaller radius of the jet trajectory and lower jet velocity, which in turn leads to the formation of coarser fiber.

中文翻译：

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粘度对静电纺射流弯曲行为的影响：仿真模型和实验


大量实验数据表明，较高粘度的溶液更容易获得较粗的纤维。然而，粘度对射流搅动行为的影响及其对静电纺丝过程中末端纤维形成的后续影响仍然是正在进行的研究主题。本研究提出的仿真模型和实验旨在解决这些问题。仿真模型通过改变无量纲参数Fve来预测不同粘度对电纺射流弯曲行为的影响，而实验则通过调节溶液浓度来观察不同粘度下的这种行为。模拟与实验数据的一致性暗示了本文结论的准确性。此外，模拟模型和实验表明，较高粘度的射流会导致较小的射流轨迹半径和较低的射流速度，从而导致形成较粗的纤维。