Polymer application mechanism for electrospinning nano fibers

Abstract

A polymer application mechanism for electrospinning nano fibers comprises an application table, a guide roller, a soaking gantry, a push plate, an electric push bar, adjusting bars, lifting plates, soaking rollers, an application gantry, application rollers, and metering pumps. The guide roller is arranged at the top of the application table; two ends of the guide roller are rotated through shaftsand guide roller fixing blocks; the soaking gantry is arranged above the center of a soaking trough in crossing manner; the push plate is arranged at the top end of the soaking gantry; the push plateand the soaking gantry are arranged slidably; the electric push bar is arranged at one end of the top of the push plate; the top ends of the adjusting bars and the lateral sides of the push plate arerotationally connected via shafts; the lifting plates are arranged at the inner bottom of the soaking gantry; the bottom ends of the adjusting bars are rotationally connected with the top ends of thelifting plates through shafts; the application gantry is arranged above the center of a dripping trough in a crossing manner. The polymer application mechanism has high application efficiency, high uniformity degree, high material utilization, good economy and good position adjusting flexibility and convenience.

Description

technical field [0001] The invention relates to the field of nanofibers, in particular to a polymer coating mechanism for electrospinning nanofibers. Background technique [0002] Electrospinning is a special form of electrostatic atomization of polymer fluids. At this time, the substances split by atomization are not tiny droplets, but tiny jets of polymers, which can run for a long distance and finally solidify into fibers. Under the action of an electric field, the droplet at the needle will change from a spherical shape to a conical shape (and extend from the tip of the cone to obtain fiber filaments. The ductility, flexibility, and tensile strength of the tow produced after extension are relatively weak. At this time, the tow is passed through a special coating mechanism to effectively coat the surface of the tow with a polymer solution, so that the tow can obtain better performance. The existing device for coating the electrospinning tow usually The linear coating met...

AI Technical Summary

Problems solved by technology

Existing devices for coating electrospinning tows usually adopt a linear coating method, and spray the electrospinning directly through the nozzle to make the polymer solution adhere to the surface of the tows, because the tows must be ensured during the spraying process. The surface is fully and uniformly coated, and the coating amount of the coating mechanism is often slightly larger than the required coating amount, and the excess solution is removed directly after dripping, resulting in waste of materials during the coating process

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