A wet medical polyurethane foam dressing and a preparation process thereof

Abstract

The application relates to the field of foam dressings, in particular to a wet medical polyurethane foam dressing and a preparation process thereof. The raw material scheme of the wet medical polyurethane foam dressing comprises polyurethane prepolymer, deionized water, a hydrophilic auxiliary agent, a chain extender, a gel catalyst, a foaming catalyst and a reinforcing agent and the like. The wet medical polyurethane foam dressing provided by the application has excellent comprehensive use performance. After absorbing a large amount of wound exudate, the dressing can still firmly lock the liquid under pressure, significantly inhibits the reverse osmosis phenomenon, and avoids the immersion damage of the skin around the wound. Meanwhile, the dressing has good flexibility and wet structure integrity, can be used in conformity with the wound contour, is not easy to adhere to the new tissue when being replaced, the stable long-acting liquid absorption capacity helps to prolong the replacement period, reduces the nursing workload and medical cost, and provides a more reliable and efficient solution for exudative wound management.

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