Anti-pollution hollow fiber ultrafiltration membrane and preparation process thereof

The invention relates to an anti-pollution hollow fiber ultrafiltration membrane, in particular to a tetraethyl orthosilicate/polymer blended hollow fiber ultrafiltration membrane which is the anti-pollution hollow fiber ultrafiltration membrane obtained by blending an ethanol solution of tetraethyl orthosilicate and a polymer solution and then carrying out a high-temperature phase inversion method. The anti-pollution hollow fiber ultrafiltration membrane is characterized in that a three-dimensional interpenetrating network in which the polymer and the tetraethyl orthosilicate are microcrosslinked is formed during the high-temperature phase inversion process, wherein the polymer is one or two of polysulfone, poly(phthalazinone ether sulfone ketone) and poly(phthalazinone ether ether ketone); a solvent is one of dimethyl acetamide (DMAC), dimethyl formamide (DMF) and dimethyl sulfoxide (DMSO); a pore-forming agent is polyethylene glycol (PEG) of different molecular weights; and the mass fraction of the polymer