Organic polyurethane foam dressing and preparation method thereof

Abstract

The invention provides an organic polyurethane foam dressing and a preparation method thereof. An antibacterial component is added into a polyurethane foam synthesis formula to prepare polyurethane foam with an antibacterial function; the obtained polyurethane foam is subjected to low-temperature plasma surface modification treatment; a plasma membrane layer is added on the surface of the antibacterial polyurethane foam material to form a speed limiting barrier. The polyurethane foam dressing prepared by the preparation method disclosed by the invention is high in compliance to a wound and is soft and comfortable; the preparation technology is simple, is convenient to operate and good in treatment effect, has the characteristic of long-time bacteriostat and is suitable for industrial production.

Description

technical field [0001] The invention belongs to the technical field of polyurethane foam dressings, and in particular relates to an organic polyurethane foam dressing and a preparation method thereof. Background technique [0002] Skin damage caused by trauma, burns, and skin ulcers will cause a series of problems in the body, such as bacterial infection, increased metabolism, excessive loss of water and protein, endocrine and immune system dysfunction, etc., which may be life-threatening in severe cases. Therefore, after skin injury, it is usually necessary to use a skin substitute medical dressing to protect the wound, prevent wound infection and severe dehydration, provide a moist environment conducive to wound healing, and promote wound healing. During the wound healing process, the use of medical dressings can form a physical barrier to prevent dust, bacteria, etc. from entering the wound, facilitate wound care, and promote wound healing. [0003] In recent decades, wi...

AI Technical Summary

Problems solved by technology

Traditional wound dressings (such as gauze and cotton) have many disadvantages: they are easy to breed bacteria, and the wound exudate easily forms scabs with dry dermal tissue, which hinders epithelialization; at the same time, the wound is easy to adhere to the dressing, causing pain when the dressing is removed , causing secondary trauma

Although the antibacterial flexible polyurethane foam has an antibacterial effect, it cannot achieve long-term antibacterial inhibition, and the cost of antibacterial agents is high and the dosage is large.