Hydroxypropyl chitosan / oxidized sodium alginate self-crosslinking antibacterial hydrogel material
A technology for oxidizing sodium alginate and hydroxypropyl chitosan, applied in the fields of medical science, absorbent pads, bandages, etc., can solve the problem of less hydroxypropyl chitosan hydrogel, and achieve excellent bacteriostatic properties and water content. High and low cost effect
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Embodiment 1
[0028] Example 1: Preparation of hydroxypropyl chitosan / oxidized sodium alginate self-crosslinking antibacterial hydrogel material
[0029] By weight, 4% of hydroxypropyl chitosan, 4% of oxidized sodium alginate and 91.9% of distilled water were prepared into an aqueous solution of the two, then blended, added 0.1% of nano-silver, and waited for self-crossing at 10-50°C The hydroxypropyl chitosan / oxidized sodium alginate self-crosslinked antibacterial hydrogel material was obtained.
Embodiment 2
[0030] Example 2: Preparation of hydroxypropyl chitosan / oxidized sodium alginate self-crosslinking antibacterial hydrogel material
[0031] By weight, 7% of hydroxypropyl chitosan, 6% of oxidized sodium alginate and 86.95% of distilled water were prepared into an aqueous solution of the two, then blended, added 0.05% of nano-silver, and waited for self-crossing at 10-50°C The hydroxypropyl chitosan / oxidized sodium alginate self-crosslinked antibacterial hydrogel material was obtained.
Embodiment 3
[0032] Example 3: Preparation of hydroxypropyl chitosan / oxidized sodium alginate self-crosslinking antibacterial hydrogel material
[0033] By weight, 15% of hydroxypropyl chitosan, 14% of oxidized sodium alginate and 82.9% of distilled water were prepared into an aqueous solution of the two, then blended, added 0.5% of nano-silver, and waited for self-crossing at 10-50°C The hydroxypropyl chitosan / oxidized sodium alginate self-crosslinked antibacterial hydrogel material was obtained.
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