Electrostatic spinning device for preparing double-component composite material nanofiber

Abstract

The invention discloses an electrostatic spinning device for preparing double-component composite material nanofiber and belongs to the field of electrostatic spinning. The electrostatic spinning device mainly comprises a receiving device, a machine head, a temperature control system, an inner and outer conical surface composite sleeve, a material A feeding opening, a circumferential positioning ring, an air pipe, an air pipe positioning nut, a sleeve positioning nut, a material B feeding opening, a grounding electrode and a high-voltage static generator, wherein the machine head is subjected to accurate temperature control by the temperature control system and is connected into the grounding electrode; the inner and outer conical surface composite sleeve and the air pipe are respectively and axially positioned by the sleeve positioning nut and the air pipe positioning nut; materials A and materials B are respectively converged at the tip of a conical surface through respective flow passages; the receiving device is connected with the high-voltage static generator below the machine head. The electrostatic spinning device can be used for the mass production of the double-component composite material nanofiber and further reduces the fiber diameter under the airflow-assistant action; the temperatures of the flow passages on the inner sides are finely adjusted by the utilization of airflow temperature, so that two fluids are allowed to have different spinning temperatures, and materials with more sensitive temperature requirements can be spun.

Description

technical field [0001] The invention relates to an electrospinning device for preparing nanofibers of a two-component composite material, belonging to the field of electrospinning. Background technique [0002] With the heating up of nanotechnology, electrospinning method has become one of the current research hotspots because it can prepare nanoscale fibers. The electrospinning method has been recognized as one of the simplest and most effective methods for preparing nanofibers. At present, more than 30 kinds of polymers have successfully prepared ultrafine fibers through this method, and the smallest diameter reaches tens of nanometers. [0003] The basic principle of electrospinning is that the polymer melt or solution gradually deforms under the action of a high-voltage electrostatic field. When the electric field force is greater than its surface tension, a jet is formed, and finally polymerized ultrafine fibers are obtained on the receiving plate. [0004] Nanofibers ...

AI Technical Summary

Problems solved by technology

[0006] The present invention proposes an electrospinning device for preparing nanofibers of two-component composite materials. The inner and outer cones are organically combined, and different fluids are respectively introduced into the inner and outer cones. When the tips of the cones converge, they are pulled by high-voltage static electricity Stretching, falling into fibers, this device can mass-produce two-component composite nanofibers, and overcomes the problem that the melt is easy to block in the small hole spinning, and at the same time, it can adjust the two kinds of The temperature difference of the components, so that both components can reach the optimum spinning temperature

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