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Predicting the Electrospinnability of Polymer Solutions with Electromechanical Simulation

机译：用机电模拟预测聚合物溶液的电纺性

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摘要

The number of polymers successfully electrospun is increasing, and methods are needed predict the electrospinnability of polymers. With such methods, researchers should consider the polymer solution parameters and perform measurements in conditions that mimic the electrospinning process. A novel test method based on the electromechanical simulation of the fiber formation was developed. We formed fibers by mechanically dragging a conductive ball from the solution at an applied voltage and measuring the electrical current. The changes in the time of the electrical current (the ball current) reflect the fiber-formation process, which depended on certain polymer solution properties (e.g., viscosity, surface tension, liquid flow) and on the influence of charges on the fiber surface. The data obtained with the proposed method was compared with experimental data from electrospinning trials with the spinneret and bubble electrospinning. The results demonstrate that the ball-current method made it possible to predict the polymer solution behavior in the electrospinning process.
机译：成功进行电纺的聚合物数量正在增加，并且需要一些方法来预测聚合物的电纺性。通过这种方法，研究人员应该考虑聚合物溶液的参数，并在模仿电纺丝工艺的条件下进行测量。开发了一种基于机电模拟纤维形成的新型测试方法。我们通过在施加电压下从溶液中机械拖动导电球并测量电流来形成纤维。电流时间（球电流）的变化反映了纤维的形成过程，该过程取决于某些聚合物溶液的性能（例如，粘度，表面张力，液体流动）以及电荷对纤维表面的影响。将通过该方法获得的数据与通过喷丝板和气泡电纺丝进行电纺丝试验得到的实验数据进行比较。结果表明，球流法使预测静电纺丝过程中聚合物溶液的行为成为可能。

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