High-flux anti-pollution polyamide composite reverse osmosis membrane and preparation method thereof

The invention relates to a high-flux anti-pollution polyamide composite reverse osmosis membrane and a preparation method thereof. The reverse osmosis membrane comprises an aromatic polyamide composite reverse osmosis membrane, and a hydrophilic layer which is formed by dehydrating and condensing reaction of a surface active acyl chloride group of the aromatic polyamide composite reverse osmosis membrane and an amino group in an amine-terminated polyhydroxy compound, wherein the water flux is increased by 13 to 30 percent compared with that of an initial aromatic polyamide composite reverse osmosis membrane; after the reverse osmosis membrane is polluted by bovine serum albumin for the first time and cleaned, the water flux recovery rate is 88.5 to 92.4 percent of the water flux of the initial non-polluted membrane; and after the membrane is polluted by dodecyltrimethylammonium bromide for the first time and cleaned, the water flux recovery rate is 90.3 to 93.5 percent of the water flux of the initial non-pol