Portable handheld electrostatic spinning device

Abstract

The invention belongs to the technical field of electrostatic spinning and relates to a portable handheld electrostatic spinning device. The top of a pushing rod of a medical syringe is provided with a pressure welding switch, a metal foil is arranged on the top side fixedly, a spinning solution is arranged in a front end inner cavity of the medical syringe, a square battery and a high-voltage direct-current inverter are arranged fixedly on the side wall of the syringe in a butt joint mode, and a stainless steel needle head which is used for spinning is arranged at the bottom end of the syringe in an inserting mode. A conventional medical syringe needle head structure and the syringe are combined and matched, the spinning solution is stored in the inner cavity of the medical syringe which is provided with the stainless steel needle head, the square battery provides a power supply for the high-voltage direct-current inverter, when the direct current voltage is inverted, the voltage in the unit of kilovolt, the positive pole of the high-voltage direct-current inverter is communicated electrically with the stainless steel needle head, and the negative pole of the high-voltage direct-current inverter is communicated electrically with the metal foils. The device is simple in overall structure, is convenient to carry, use and operate, applicable to occasions such as outdoor teaching and wounded rescue and high in economical value.

Description

Technical field: [0001] The invention belongs to the technical field of electrospinning, and relates to a portable hand-held electrospinning device with low price, stable spinning, small volume, light weight and reliable practicability. Background technique: [0002] At present, the excellent properties of ultrafine fibers make them have broad application prospects in filtration devices, textiles and clothing, biomedicine, nanoelectronic devices, sensors, optical devices, energy collection / storage / conversion devices, and nanocomposites. Therefore, related The researchers have conducted extensive and in-depth research on the manufacturing methods of ultrafine fibers; the existing methods of manufacturing ultrafine fibers mainly include sea-island type two-component mixed spinning method, molecular spinneret spinning method, electrospinning method and Direct manufacture of nanofibers etc. in the polymerization process. Generally, traditional spinning methods are difficult to ...

AI Technical Summary

Problems solved by technology

At present, the commonly used electrospinning devices are basically used for scientific research in laboratories. The high-voltage power supplies used in electrospinning devices generally use commercially available high-voltage DC or AC power sources, which are relatively expensive, heavy, and have no external power supply. Disadvantages such as inability to use in the event of a power outage or outdoors without power supply, in the wild, in remote mountainous areas, etc.

The electrospinning device used for scientific research has not yet seen a portable electrospinning device. In order to solve this problem, a Chinese patent (application number: 201110255225) discloses a rotating disk induction electrification type electrospinning device. Due to the limitation of external power supply, it can work normally when there is no power failure or mains supply, and it has been improved in volume and weight, but there are still problems in the controllability of the shape of the electrospun fiber, the portability of the device, and the practicability. Many deficiencies, it can only be used as an electrospinning experimental demonstration device; Chinese patent (application number: 201110255208) also discloses a piezoelectric ceramic power supply miniature electrospinning device, which uses piezoelectric ceramics to produce a small electrospinning device. The filament device has the advantages of small size, light weight, low cost, and portability, but the piezoelectric ceramic power supply used in the device can only generate instantaneous high voltage, the voltage is unstable, and the spinning distance is short (1-2 cm). The fiber yield is low, and the practical performance is poor, so it can only be used as a teaching demonstration device

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