Exploring the Polymer Drawing of the Air Centrifugal Spinning.

The air-flow field of the air centrifugal spinning is simulated and measured. The simulated air velocities coincide well with the measured ones, confirming the correctness of the air-flow field model. The air velocity is found to decrease with the increase of the distance away from the nozzle exit. The polymer drawing in the air-flow field of the air centrifugal spinning is modeled and simulated. Effects of the rotation speed and initial air velocity on the diameter and radius vector of the threadline are investigated. Simulation results show that both larger rotation speed and higher initial air velocity can reduce the threadline diameter. The radius vector of the threadline increases rapidly with the increase of the initial air velocity, which is helpful to reduce the threadline diameter.