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What Is The Industrialization Degree Of Electrospinning When The Research On Electrospinning Is So Hot?

2020/1/22 11:08:00 8

Electrospinning

Electrospinning is the earliest industrialized production and the most common method to prepare submicron nanofibers. At present, two processing methods are mainly used, namely solution method and melting method. At present, the solution method is used to produce nanofibers. Electrospinning process has relatively low cost, simple maintenance and processing process, which is the main method for laboratory research and industrial production of nanofibers. However, solvent selection and recovery system are still the problems restricting the large-scale industrial production of electrospinning. At present, the electrospinning equipment that has been put into the market generally includes the following three series.

Needle less electrospinning technology

The first electrospinning production line in the world is the electrospinning production line of "nanofiber" in Czechoslovakia. The equipment has the characteristics of simple structure and low operation cost. The raw materials that can be used include organic materials, inorganic materials and bio based polymer materials. According to the user's requirements, the electrospinning equipment can be provided as follows: ns-lab laboratory series with working width of 300 mm; production equipment includes ns-1s-500u series with width of 0.5m, ns-4s-1000u series with width of 1m and ns-8s-1600u series with width of 1.6m. The new generation nanospider technology and equipment have better fiber and web uniformity, lower raw material and solvent consumption, and lower operating costs.

   Porous electrospinning technology of 2spur company

The porous electrospinning technology developed by spur company in Czech Republic has excellent versatility and can be used in the production of submicron nanofibers. Its features include: accurate design capacity; only one maintenance personnel is needed for continuous operation of 16 h; the equipment structure is simple and easy to operate, with good safety; and the amount of waste silk is low. The spr-120 production line of the company has a working width of 1200 mm, and the output is 300 m2 / h based on the product weight of 0.25 g / m2.

   Development technology of electrospun nanofiber composite products

The hybrid products with different morphologies can be developed by combining electrospun nanofibers with nano powders prepared by electrospraying, which is very suitable for the processing of tissue engineering materials. The results show that the combination of electrospinning and electrospinning can effectively improve the properties of fiber materials and the structural characteristics of fiber surface.

   At present, many enterprises in Japan and Europe have developed nanofiber jet equipment. For example, the "fluidnatek" technology and equipment developed by Valencia company in Spain has good production flexibility, can adapt to small-scale test and commercial production, and has a variety of processing varieties. It can undertake coaxial electrospinning or multi axis electrospinning process test. This series of equipment adopts modular design, and the production scale or category can be adjusted according to the market demand. At present, the electrospun electrospray composite products are favored by the market.

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