Nanofiber-based microsphere composite membrane and preparation method thereof

• Main Authors: FENG YUSHENG, LI GANG
• Format: Patent
• Language: Chinese; English
• Published: 18.06.2021
• Subjects: BRAIDING; COTTON-WOOL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS; KNITTING; LACE-MAKING; MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL; NON-WOVEN FABRICS; TEXTILES; TRIMMINGS; WADDING

The invention discloses a preparation method of a nanofiber-based microsphere composite membrane. The preparation method comprises the following steps: preparing an electrostatic spinning solution, obtaining the nanofiber-based microsphere composite membrane by adopting an electrostatic spinning technology, soaking the nanofiber-based microsphere composite membrane in absolute ethyl alcohol, taking out the nanofiber-based microsphere composite membrane, naturally drying the nanofiber-based microsphere composite membrane, removing the redundant solvent, and then drying the nanofiber-based microsphere composite membrane in a vacuum drying oven to obtain the nanofiber-based microsphere composite membrane. According to the membrane, the problems that microspheres are prone to agglomeration and poor in mechanical property can be solved through the formation of the nanofibers, and the problems that the nanofibers are high in degradation speed, low in drug loading capacity and high in drug slow release speed can be