Medical hydrogel wound dressing and preparation method thereof
A wound dressing and hydrogel technology, applied in medical science, bandages, absorbent pads, etc., can solve the problems of waste of medical supplies such as hydrogel wound dressings, weak ability to maintain a wet environment for wounds, and increase the workload of medical staff , to achieve the effect of promoting wound healing, no cytotoxicity and acute toxicity, and saving medical supplies
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[0023] A preparation method of a medical super absorbent hydrogel wound dressing includes the following steps in sequence:
[0024] (1) Ingredients: mix sodium polyacrylate and polyvinyl alcohol (PVA) in a weight ratio of 20-30:2-6, then add double distilled water to make a solution with a mass concentration of 27%;
[0025] (2) Casting film: heating and dissolving the above solution to make it into a homogeneous mixture aqueous solution, and pour the above solution into a film-making dish to cool down and form a mold with a thickness of 1 mm;
[0026] (3) Radiation processing: use electron accelerator β electrons to carry out radiation cross-linking, and the conditions are: the voltage during radiation synthesis is 2.45 MeV, the current is 14 mA, the dose rate is 15 kGy / time, and the dose is 30 to 90 kGy;
[0027] (4) The hydrogel samples prepared by radiation are sterilized and stored in a refrigerator at 4°C for later use.
[0028] The hydrogel wound dressing was mixed with 100...
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