Silk fibroin based antibacterial nano-fibers and preparation method thereof
A technology of silk fibroin and nanofibers, which is applied in the fields of fiber chemical characteristics, single-component protein rayon, textiles and papermaking, etc., can solve the problems of high processing cost and complicated preparation process, and achieve the improvement of color fixing performance and adsorption function, the effect of improving stability
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[0019] Example 1:
[0020] The silk fibroin-based antibacterial nanofibers are composed of the following components and parts by weight: 120 parts of silk fibroin, 6 parts of titanium dioxide, 24 parts of chitosan, 13 parts of nano-copper oxide, 11 parts of polyethylene oxide, and the particle size of nano-copper oxide It is 600nm.
[0021] The preparation method of silk fibroin-based antibacterial nanofibers includes the following steps:
[0022] 1) Preparation of silk fibroin film: silk fibroin fiber is obtained by degumming and drying. The silk fibroin fiber is processed. The processing of silk fibroin fiber includes the process of dissolving, drying, washing, and then drying. The solvent used in the dissolution process is selected from An acid / salt mixture with a mass ratio of acid: salt of 15:85. The acid is formic acid solution; the salt is octacalcium phosphate, and the nano cuprous oxide solution is stirred and dissolved to prepare a silk fibroin film. The preparation steps...
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[0025] Example 2:
[0026] Silk fibroin-based antibacterial nanofibers are composed of the following components and preferred parts by weight: 140 parts of silk fibroin, 6 parts of titanium dioxide, 24 parts of chitosan, 11 parts of nano-copper oxide, 12 parts of polyethylene oxide, and particles of nano-copper oxide The diameter is 450nm.
[0027] The preparation method of silk fibroin-based antibacterial nanofibers includes the following steps:
[0028] 1) Preparation of silk fibroin film: silk fibroin fiber is obtained by degumming and drying. The silk fibroin fiber is processed. The processing of silk fibroin fiber includes the process of dissolving, drying, washing and re-drying, and the solvent used in the dissolving process is selected from An acid / salt mixture with a mass ratio of acid: salt of 95:5, the acid is a mixture of formic acid and phosphoric acid; the salt is calcium chloride, and the nano cuprous oxide solution is stirred and dissolved to prepare a silk fibroin fi...
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[0031] Example 3:
[0032] Silk fibroin-based antibacterial nanofibers are composed of the following components and parts by weight: 110 parts of silk fibroin, 6 parts of titanium dioxide, 27 parts of chitosan, 14 parts of nano copper oxide, 12 parts of polyethylene oxide, and the particle size of nano copper oxide It is 1000nm.
[0033] The preparation method of silk fibroin-based antibacterial nanofibers includes the following steps:
[0034] 1) Preparation of silk fibroin film: silk fibroin fiber is obtained by degumming and drying. The silk fibroin fiber is processed. The processing of silk fibroin fiber includes the process of dissolving, drying, washing, and then drying. The solvent used in the dissolution process is selected from The acid / salt mixture with a mass ratio of acid: salt of 20:80, the acid is phosphoric acid solution; the salt is calcium hydroxide, and the nano cuprous oxide solution is added to stir and dissolve to prepare silk fibroin film, nano cuprous oxide so...
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