1results about How to "Avoid Biosecurity Concerns" patented technology

The application discloses degradable swelling hemostatic cotton and a preparation method thereof, and comprises the following steps: melt blending degradable nylon copolymer, polar polymer and crosslinking agent in a banbury mixer to obtain a polymer blend; dissolving the polymer blend in a benign solvent, freeze-drying into hemostatic cotton, and packaging and sterilizing to obtain a finished product. In the process of melt blending, a condensation reaction of carboxyl-amino occurs between the degradable nylon, the degradable polar polymer and the crosslinking agent, a stable chemical crosslinking point is generated through the chemical reaction, the structural integrity of the product can be maintained in the degradation process, and the collapse or breakage phenomenon is avoided.