Process for preparing chitosan nano fiber film with stable state

Abstract

the invention discloses a chitose nanometer fiber film and preparing method with stable shape structure in the carrier domain, which comprises the following steps: forming transparent solution in the water mixed solvent through dissolving chitose and polyvinyl alcohol in the glacial acetic acid; putting the spin liquid in the feeder; connecting spin-spraying head with high-pressure power at 5-30 kV; spinning; immersing the film material in the strong alkaline solution; possessing stable shape structure.

Description

technical field

[0001] The invention relates to a preparation technology of a chitosan nanofiber membrane with a stable morphological structure. Background technique

[0002] The use of electrospinning to prepare nano-sized fiber composite membrane materials has attracted more and more attention. Electrospinning technology is to spin a polymer solution or melt under an electric field, stretch it due to electrostatic action, and obtain ultra-fine nanofibers after cooling or solvent volatilization. This type of material has the advantages of high specific surface area and high porosity. . The electrospinning method can be used to prepare various polymer nanofiber composite membrane materials. US 20030215624; 20040013873 common polymers such as: polyvinyl alcohol, polyethylene, polypropylene, polystyrene, polysulfone, polycarbonate, polyurethane, polymethacrylate, polyvinyl chloride, polyamide by electrospinning , polyacrylate, polyvinylpyrrolidone, etc. to prepare superfine...