Preparation method of high performance seawater desalination reverse osmosis membrane

The invention discloses a preparation method of a high performance seawater desalination reverse osmosis membrane. The method comprises the following steps of 1) preparing a polysulfone support layer,wherein a polysulfone resin having a weight ratio of 16%-18% is weighed and dissolved in n,n,-dimethyl formamide, an additive in a weight ratio of 1.5%-3.0% is added, stirring is conducted at 70 DEGC for 4 h, and a uniformly dispersed solution is prepared, the solution is filtered, vacuum-degassed and then evenly applied on a non-woven fabric through a high speed slit coating machine, the wet membrane thickness is about 150 micrometers, immediate immersing in 15-18 DEG C pure water is conducted, and a membrane is formed through gel solidification to obtain the polysulfone support layer; 2) preparing an amine-containing aqueous phase solution; 3) preparing an acid chloride oil phase solution; 4) preparing the seawater desalination membrane. The method studies the polysulfone support layerto make the formed polysul