Electrostatic spinning device for preparation of fluffy-state nanofibers and method for preparation of fluffy-state nanofibers

Abstract

The invention discloses an electrostatic spinning device for preparation of fluffy-state nanofibers and a method for preparation of fluffy-state nanofibers. The electrostatic spinning device comprisesan air supply device, an injection device and a fluffy-state fiber collection device. The air supply device is connected onto an air guide device through an air guide pipe. A stainless steel needle head of the injection device penetrates through the air guide device and extends above a receiving device. The method for preparation of fluffy-state nanofibers comprises the following steps: solutionpreparation; substrate preparation; preparation of fluffy nanofibers. The production process of the fluffy-state nanofibers comprises the following steps: performing pre-spinning in the environment without sheath gas; introducing sheath gas after a silk film appears; stopping spinning when fluffy-state fibers ascends to the top nearby in order to acquire fluffy-state nanofibers. The device is simple in technique, low in cost and higher in fluffy degree. The high porosity is used as a support of tissue engineering so that a cell-scaffold complex body is formed in vitro.

Description

technical field [0001] The invention relates to an electrospinning device, in particular to an electrospinning device utilizing sheath gas assistance and a fluffy state collecting device. Background technique [0002] In recent years, with the development of materials science, research reports on nanomaterials have continued to increase, especially the preparation and application of nanofibrous materials have received widespread attention and become one of the hotspots in the field of materials research. Researchers have developed many methods for preparing nanofibers. Among them, electrospinning technology is an important means of preparing nanofibers. The prepared fibers have a similar structure to the extracellular matrix, and have the characteristics of extremely large specific surface area and high porosity. . [0003] At present, many studies have shown that electrospun fibers are one of the best choices for constructing suitable tissue engineering scaffolds to form c...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a preparation method of dry electrospinning, which solves the problems of insufficient three-dimensionality of the existing fibers, cumbersome process, and the fact that the fluffy fibers will be compressed when they are separated from the solvent, and the prepared fluffy nano Fiber can provide cells with an excellent environment similar to natural in vitro survival

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