Effect of chitosan crosslinking time on the structure and antifouling performance of polyvinylidene fluoride membrane by surface gelation‐immersion precipitation phase inversion
Shuo Sun,
Lang Xu,
Hongjun Li
et al.
Abstract:Polyvinylidene fluoride (PVDF) porous membrane was prepared by a two‐step method of surface gelation‐immersion precipitation phase inversion. Chitosan/acetic acid solution and glutaraldehyde aqueous solution were sequentially sprayed onto the surface of the PVDF solution film, with chitosan crosslinking and gelation occurring simultaneously on the film surface. The solution film was then immersed in a coagulation bath to obtain a modified PVDF porous membrane. The effect of the crosslinking time of chitosan an… Show more
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