Double antibacterial polyurethane dressing and preparation method thereof

• Main Authors: RUAN GUOQIAO, CAO KAI, FANG KAI, HE JIANWU, LIU HANSHUI, LIAO FEIYUN, XIE CHENGYIN, RUAN YINGQUAN
• Format: Patent
• Language: Chinese; English
• Published: 27.06.2023
• Subjects: CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; HUMAN NECESSITIES; HYGIENE; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES; MEDICAL OR VETERINARY SCIENCE; METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL

The invention discloses a double-antibacterial polyurethane dressing and a preparation method thereof.The preparation method of the double-antibacterial polyurethane dressing comprises the following steps that sodium periodate is added into a sodium acetate buffer solution, dopamine hydrochloride is added after the sodium periodate and the sodium acetate buffer solution are mixed to be uniform, then polyurethane sponge is soaked in the mixture for a reaction, after the reaction is finished, the polyurethane sponge is taken out, and the double-antibacterial polyurethane dressing is obtained. Washing to obtain a modified product; soaking the modified product in a silver nitrate solution, performing ultraviolet irradiation under a dark condition, performing ultrasonic washing, and drying, thereby obtaining the double-antibacterial polyurethane dressing. The polyurethane antibacterial sponge prepared by the preparation method disclosed by the invention not only has a good inherent antibacterial effect, but also c