| abstract |
The present invention relates to a method for preparing a hemostatic material, which comprises the following steps: S1, dissolving multi-arm polyethylene glycol-SG in an acidic aqueous solution to obtain a first solution, dissolving multi-arm polyethylene glycol-SH in chlorinated The second solution is obtained in the sodium solution; S2, the first solution and the second solution are mixed, so that the multi-arm polyethylene glycol-SG and the multi-arm polyethylene glycol-SH are cross-linked to obtain a hydrogel; and S3, low temperature freeze-drying Hydrogel, the obtained solid material is used as a hemostatic material. According to the preparation method of the hemostatic material of the present invention, it is cross-linked at room temperature without toxic cross-linking agent, and the obtained hydrogel has excellent swelling degree as a hemostatic material. |