High voltage electrospinning

Industry Introduction

High voltage electrospinning technology is a method of preparing nano micron fiber materials by utilizing the breakdown effect of high voltage electrostatic field on polymer solutions. The basic principle is to apply tens of thousands of volts of electrostatic field between the spraying device and the receiving device, forming a jet from the cone end of the spinning solution, and being stretched in the electric field to form a non-woven nanofiber on the receiving device. Electrospinning can prepare fibers with diameters ranging from tens to hundreds of nanometers. The products have high porosity and large specific surface area, diverse composition, and uniform diameter distribution, which have high application value in biomedical, environmental engineering, and textile fields.

The main factors affecting electrospinning include solvent selection, stability of injection speed, solution concentration, applied electric field strength, and distance between the spinneret and receiver.

The electrospinning device consists of four parts: high-voltage power supply, injection pump, spinneret, and receiver. Among them, the spinning device needs to be placed in a metal shielded box, the laboratory injection pump must be grounded, and the injection pump and high-voltage electrostatic equipment cannot share the same power supply.

Application

In the bioengineering laboratory of universities, the laboratory injection pump produced by Huiyu Company can operate stably and reliably in a high-voltage electrostatic field, with stable and continuous injection speed, adjustable flow rate, and flow calibration function, touch screen control, spinning fibers with uniform morphology, reducing the impact of beads and other factors on fiber performance.