A modified high blood-sucking polyurethane sponge, preparation method and use thereof

Abstract

The invention provides a modified high blood-absorbing polyurethane sponge, a preparation method and use thereof. The polyurethane sponge is made from raw materials comprising the following components: isocyanate, polyol, superabsorbent resin, fluff pulp, cationic polysaccharide, Water, hydrophilic surfactants, chain extenders, inorganic fillers, antioxidants. The polyurethane sponge prepared by the invention has the advantages of strong liquid conductivity, high utilization rate of absorbing foam, strong blood absorption capacity, low blood reverse osmosis rate, low swelling rate after blood sucking, etc., and can maintain high strength after blood sucking, and is suitable for use in Disposable blood-absorbing hygiene products, such as sanitary napkins and medical dressings.

Description

technical field

[0001] The invention relates to the field of polyurethane foam material products, in particular to a modified high blood-absorbing polyurethane sponge, a preparation method and its application in the medical and health field. Background technique

[0002] With the improvement of people's living standards, people's demand for the use of disposable sanitary products has gradually increased, and higher requirements have been placed on the quality of disposable sanitary products. With the industrialization of acrylic-based superabsorbent resins, superabsorbent disposable hygiene products (including feminine hygiene products, baby diapers, etc.) filled with superabsorbent resins have developed rapidly, but the conventional carriers of superabsorbent resins have many problems, including dispersion If it is not uniform, it is easy to cause problems such as gel blockage and poor comfort after liquid absorption. At the same time, with the diversification of user expe...

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