The invention relates to the technical field of preparation of medical supplies, in particular to a surgical membrane and a preparation process. During specific use, firstly, a
polyurethane base membrane is selected and subjected to
plasma treatment; spraying a nano SiO2 dispersion liquid containing a
photoinitiator on the surface of the treated
polyurethane base film, and then performing
ultraviolet patterning
irradiation to form a micro-bulge structure to obtain a base material layer; projecting the colloidal fluid to a
temperature gradient mask through a
digital micromirror device, so that the colloidal fluid is subjected to regional thermal
polymerization on the substrate layer to form an intelligent
adhesive layer with
viscosity gradient; by adopting an
aerosol jet printing technology,
super absorbent fibers and
polyvinyl alcohol-
borax dynamic crosslinking hydrogel are co-deposited to form a drainage layer, so that the technical problems that a surgical membrane prepared by a surgical membrane preparation mode in the prior art is inflexible in adhesion and poor in
surface structure performance, and a preparation process is difficult to accurately control are solved.