Polypropylene spinning machine is a kind of machine used for the production of silk fiber, and an electrostatic spinning machine is now very popular and efficient and high quality of a spinning machine, its electrospinning technology to spinning Silk industry efficiency has been greatly improved.

Electrostatic spinning is a special fiber manufacturing process in which a polymer solution or melt is sprayed in a strong electric field. Under the action of the electric field, the droplets at the needle will be spherical into a conical shape (ie, "Taylor cone"), and from the tapered tip extension of fiber filaments. This way can produce nanoscale diameter polymer filaments.

The word electrospinning was derived from electrospinning. In 1934, Formalas invented an experimental device for the preparation of polymer fibers with electrostatic force and applied for a patent, announcing the principle of electrospinning, which is considered to be the beginning of electrospinning fibers.

At the beginning, the rapid development of electrospinning, with the development of nano-technology, electrostatic spinning technology has also been rapid development, the world has shown great interest in this technology.

However, how to prepare high-performance multi-functional composite nanofibers is the key, so the study of electrospinning non-polar nanofibers has just begun. Promise nanofibers have potential applications in many fields.

With the development of nanotechnology, electrospinning as a simple and effective production of nanofibers can be a new processing technology, biomedical materials, filtration and protection, catalysis, energy, optoelectronics, food engineering, cosmetics and other fields play a huge role The

In the field of biomedicine, the diameter of nanofibers is smaller than that of cells, which can simulate the structure and biological function of natural extracellular matrix. Most tissues and organs are similar in form and structure to nanofibers, which are used for tissue And the repair of organs to provide a possibility; some electrospinning materials have good biocompatibility and biodegradability, can be used as a carrier into the human body, and easy to be absorbed; combined with electrospinning nano-fiber also has a large surface area, porosity And so on. Therefore, it has attracted the attention of researchers in the field of biomedicine, and has been well applied in drug controlled release, wound repair, biological tissue engineering and so on.

(2) The filtration efficiency of the fiber filter material increases with the decrease of the fiber diameter. Therefore, reducing the fiber diameter becomes an effective method to improve the filter performance of the fiber filter material. In addition to the small diameter, the electrospinning fiber has the advantages of small aperture, high porosity and good fiber homogeneity, which has great potential in gas filtration, liquid filtration and individual protection.

③ electrospinning fiber can effectively control the fine structure of the fiber, combined with low surface energy of the material, can be obtained with super-hydrophobic properties of the material, and is expected to be used in the ship's shell, oil pipeline wall, high-grade glass, automotive glass. However, if the electrospinning fiber material is to be used in the above-mentioned self-cleaning field, it is necessary to improve its strength, abrasion resistance and the fastness of binding of the fibrous membrane material to the base material.

(4) The catalyst particles with nanostructure are easy to agglomerate, thus affecting their dispersibility and utilization. Therefore, the electrospinning fiber material can play a uniform dispersion effect as a template, and also can play the flexibility and easy operation of the polymer carrier. Can use the catalytic material and polymer micro-nano-size surface composite to produce a strong synergistic effect, improve the catalytic performance.

⑤ electrospinning nanofibers have a high specific surface area and porosity, can increase the sensing material and the role of the detection area, is expected to greatly improve the sensor performance. In addition, electrospinning nanofibers can also be used in energy, optoelectronics, food engineering and other fields.

Electrospinning technology has played a very important role in the construction of one-dimensional nanomaterials, but some preparation methods still need to be studied, for example, nozzle structure, in addition, to improve the application of electrospun fiber membrane in ultrafine filtration applications, Fiber diameter, this area still need further study.