Collagen protein-polyvinyl alcohol-chitosan blending medical fibre and method for making same
The invention discloses a collagen-polyvinyl alcohol-chitosan blending medical fiber and the preparation method thereof. The invention is characterized by the following steps: 25-50 parts of collagen are dissolved in acetic acid solution with the concentration of 0.2-0.5mmol/L for preparing a soluti...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses a collagen-polyvinyl alcohol-chitosan blending medical fiber and the preparation method thereof. The invention is characterized by the following steps: 25-50 parts of collagen are dissolved in acetic acid solution with the concentration of 0.2-0.5mmol/L for preparing a solution; 20-40 parts of polyvinyl alcohol, and 16-40 parts of chitosan are respectively dissolved in distilled water at 85-95 DEG C and 40-60 DEG C for preparing solutions with different concentrations; the solutions are mixed in proportion and are uniformly stirred into spinning raw liquor; a wet-spinning machine carries out spinning and consolidation forming, and the collagen-polyvinyl alcohol-chitosan blending medical fiber can be obtained by processing after modification by adopting carbodiimide or aldehyde system. |
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