Preparation method for photocuring material micro-nano fiber via large-scale solvent-free electrospinning

Abstract

The invention discloses a preparation method for photocuring material micro-nano fiber via large-scale solvent-free electrospinning. The preparation method comprises the following steps of (1) preparing spinning pre-cursor solution for photocuring material, (2) electrospinning micro-nano fibers, in which the spinning pre-cursor solution prepared in the (1) step is disposed in a solution storage mechanism with a static electrospinning device communicated a spinning nozzle; the spinning nozzle of the static electrospinning device and a collection pole are placed in environment with inadequate oxygen for electrospinning; jet flows sprayed out by the spinning nozzle is irradiated by ultraviolet source during the electrospinning; and photocuring material micro-nano fiber can be collected on the collection pole of the static electrospinning device. The preparation method is simple and avoids pollution of organic solvent to the environment, so safety and environment protection can be achieved; the method is suitable for large-scale production for photocuring material micro-nano fibers; technical difficulties of complicate preparation procedures of pre-cursor solvent during electrospinning, short fibers, incomplete and irregular photocuring and incapability of large scale production.

Description

technical field [0001] The invention relates to a large-scale solvent-free electrospinning method for preparing light-cured material micro-nano fibers, which belongs to the field of nano-material preparation. Background technique [0002] Electrospinning technology as a simple and effective method for preparing micro / nanofibers. Not only uniform and continuous one-dimensional fibers can be prepared, but also micro / nano fibers with various morphology and structural characteristics can be prepared. However, with the rapid development of nanotechnology, people pay more and more attention to environmental protection and large-scale production. Traditional electrospinning generally requires the use of a large amount of organic solvents in the preparation of micro / nanofiber precursor solutions, and during electrospinning, more than 80% of the organic solvents will volatilize and are difficult to recover, resulting in pollution, making the electrospinning solution The industrializ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a method for preparing micro-nano fibers of photocurable materials by large-scale solvent-free electrospinning. The method is simple to operate, effectively avoids environmental pollution caused by organic solvent volatilization, and is safe and environmentally friendly. It is especially suitable for large-scale commercial production of micro-nano fibers of light-curable materials. At the same time, it overcomes the complicated configuration process of the micro-nano fiber precursor solution of electrospun light-curable materials, the obtained fibers are generally short and irregular, and the curing is not complete. Large-scale Due to the technical difficulties of production, a large amount of micro-nano fibers of light-curing materials with complete curing, regular shape and good continuity can be produced, which is suitable for large-scale production

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