Secondary fractal spiral electrostatic spinning head and tertiary fractal spiral electrostatic spinning head

Abstract

The invention discloses a secondary fractal spiral electrostatic spinning head and a tertiary fractal spiral electrostatic spinning head, and the secondary fractal spiral electrostatic spinning head is obtained by re-spiraling on the basis of a fractional dimension (partial and overall self-similarity) theory on the basis of a primary spiral electrostatic spinning head. The tertiary fractal spiral electrostatic spinning head is obtained by screwing the secondary fractal spiral electrostatic spinning head again; compared with an existing primary spiral electrostatic spinning head, the secondary fractal spiral electrostatic spinning head and the tertiary fractal spiral electrostatic spinning head have the advantages that more spinning sites are provided, metal wires are thin, the field intensity is high, the spinning voltage is small, and the secondary fractal spiral electrostatic spinning head and the tertiary fractal spiral electrostatic spinning head have the advantages that energy consumption is low, the yield is high, fibers are thin and uniform, and the spinning process is safe.

Description

technical field [0001] The invention belongs to the field of electrostatic spinning heads, in particular to a secondary fractal spiral electrostatic spinning head and a triple fractal spiral electrostatic spinning head. Background technique [0002] Electrospinning is a method of preparing nanofibers by stretching polymer solutions or melts by electric field force generated by a high-voltage DC power supply. It is currently one of the most effective techniques for preparing nanofibers and has been extensively studied in recent years. It has the advantages of low cost, simplicity, and the ability to process most polymers. Its products are fibers with a fineness between nanometers and micrometers, and are deposited on the receiving device in a disordered manner to form a micro-nano fiber web film similar to non-woven fabrics, which can be used for filter materials, biomedical materials, chemical sensors, Many high-tech fields such as battery separators. [0003] At present, ...

AI Technical Summary

Problems solved by technology

Roller-type needle-free electrospinning technology does not have the needle clogging problem of needle-type electrospinning, and the output is high, but there are problems such as high demand voltage, high energy consumption, and air breakdown; the multi-needle electrospinning process The required voltage is lower, the liquid supply is controllable, and the fiber is thinner, but there are problems such as easy plugging of the needle, low output, and serious edge effects.

At present, the more eye-catching large-scale needle-free electrospinning technology is helical coil electrospinning and helical blade electrospinning developed on this basis; High but requires higher voltage, higher energy consumption and prone to air breakdown

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