High-performance multineedle electrostatic spinning jet device

Abstract

The efficient multineedle electrostatic spinning sprinkling device includes constant pressure supplying system, spinnerette connected with the constant pressure supplying system, receiver electrode plate and electrostatic generator; said spinnerette is multineedle combined spinnerette, it includes spinnerette main body, cover and seal ring the two, the main body is provided with fluid cavity,the bottom of the main body is equipped with several metal nozzles, three adjacent metal nozzles are set up in regular triangle and the abduction of each circle of metal nozzles is in regular hexagon; insulated supporting parts are installed on the bottom of the main body, metal rings encompassing all metal nozzles are installed on the lower of said supporting parts, said metal rings and metal nozzles are connected with electrostatic generator directly. The invention achieves the goal of multi-needle injection simultaneously by improving the intensity of field of spinnerette, reduces the fluid jet electrostatic repulsion forces greatly caused by the small distance between the needles and makes the receiver can receive fiber in small range, so increases the efficiency in unit area and obtains carpet fiber with more uniform thickness.

Description

Technical field: [0001] The invention relates to an electrospinning device, in particular to a multi-needle electrospinning spinneret device for efficiently obtaining a small-area fiber felt by constructing a secondary electric field to uniform the field strength at the needle tip, reducing the repulsion of multiple jets. Background technique [0002] Electrospinning is a new technology in which non-Newtonian fluids generate jets under high-voltage electric fields to form micron or even nanofibers. Electrospinning technology is different from traditional spinning technology, and it is the only and most direct method in the world that can continuously prepare organic and inorganic nanofibers. Because electrospun polymer nanofibers have good application prospects in many fields such as medicine, environment, tissue engineering, and military affairs, the research on electrospinning has become one of the hot issues of global scholars in recent years. [0003] Usually, the injec...

AI Technical Summary

Problems solved by technology

[0003] Usually, the injection efficiency of electrospinning equipment is 0.1-1.0g / h, which seriously affects the process of its industrial application. How to solve the high-efficiency injection of electrospinning within a certain range is one of the problems that researchers in this field are very concerned about. , but the research scheme of high-efficiency spinning has not been disclosed in relevant literature so far

[0004] Due to the small-scale arrangement of nozzles in traditional electrospinning equipment, the field strength distribution at each spinneret is extremely uneven, and it is often impossible to spray all the nozzles normally.

At the same time, large adjacent jets are electrostatically repulsed, resulting in multiple independent circular fiber mats on the receiving electrode, failing to achieve the purpose of using multi-needle jetting to improve spinning efficiency within a certain range in a small range

Images