Hybrid nanofiber spinning nozzle device

Abstract

The invention relates to electrostatic spinning sprayers, in particular to a spinning sprayer device for compound nano-fiber. The spinning sprayer device for the compound nano-fiber comprises a sprayer support, a hollow conical sprayer, a sprayer cavity, a sprayer coupling shaft, a transmission gear, a bearing, an inner needle head, an inner needle head sleeve, an outer needle head, an outer needle head base, an electrode, a motor and a drive gear. The sprayer cavity is fixedly connected with the sprayer support. The rear portion of the hollow conical sprayer penetrates through the front end of the sprayer support. The rear portion of the hollow conical sprayer is matched with the sprayer cavity in a rotatable mode. The rear end of the hollow conical sprayer is connected with the front end of the sprayer coupling shaft. The rear portion of the inner needle head is sleeved with the inner needle head sleeve. The inner needle head sleeve is matched with a central through hole formed in the rear end of the sprayer coupling shaft in a rotatable mode. The inner needle head penetrates through the sprayer coupling shaft. The inner needle head is located in the hollow conical sprayer. The transmission gear is located on the outer wall of the rear end of the sprayer coupling shaft. The outer needle head base is fixedly connected with the sprayer cavity. The outer needle head faces the outer wall of the hollow conical sprayer. The electrode is in contact with the hollow conical sprayer. The motor is installed on the sprayer support. The drive gear on an output shaft of the motor is meshed with the transmission gear. The inner needle head, the outer needle head and the electrode are externally connected with a power source.

Description

technical field [0001] The invention relates to an electrostatic spinning nozzle, in particular to a mixture nanofiber spinning nozzle device. Background technique [0002] With the continuous development of nanotechnology in recent years, electrospinning has become an important method for preparing nanofibers and has attracted much attention. The electrospinning method is widely used, from industrial synthetic polymers to cellulose, collagen, protein, DNA complexes and other raw materials can be spun, and antibiotics, nanoparticles, etc. can be added during the spinning process , to prepare various functional fibers. [0003] The traditional electrospinning technology is the most widely used technology for preparing nanofibers. It uses a high-voltage electrostatic generator to generate thousands of volts or even tens of kilovolts of high-voltage static electricity to apply pressure in the polymer solution or melt, making the tip of the needle The droplet deforms to form a...

AI Technical Summary

Problems solved by technology

However, the diameter of fibers made in this way is not uniform, ranging from 25nm to 500mm, with low uniformity

Chinese patent CN200810153891.9 reports a non-woven non-batch electrospinning device, which uses a metal cylinder immersed in a polymer solution and cast with a tapered thread as the nozzle to replace the traditional needle-point nozzle for spinning. Although it is significantly improved, it has the disadvantage of high injection voltage threshold and cannot spin nanofibers containing two substances at the same time.

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