Epoxysuccinic acid-itaconic acid copolymerized green scale and corrosion inhibitor and preparation method therefor

The invention discloses an epoxysuccinic acid-itaconic acid copolymerized green scale and corrosion inhibitor, and belongs to the technical field of reverse osmosis membrance water treatment chemicals. The scale and corrosion inhibitor is synthesized by copolymerizing epoxysuccinic acid and itaconic acid as monomers. A general formula (I) of the polymer is defined in the specification, wherein both m and n are integers of 1-10. The invention furthermore discloses a preparation method for the epoxysuccinic acid-itaconic acid copolymerized green scale and corrosion inhibitor. According to the epoxysuccinic acid-itaconic acid copolymerized green scale and corrosion inhibitor, functional groups such as carboxyl groups, ether groups and the like are introduced in molecules, so that the polymer has excellent scale inhibition and dispersion performance for calcium carbonate and calcium sulfate, and has a certain corrosion inhibition effect on carbon steel; and the scale inhibition rates of the epoxysuccinic acid-itaconic acid copolymer to calcium carbonate and calcium sulfate can both reach 100.0% when the dosage of the epoxysuccinic acid-itaconic acid copolymer is 18mg.L . According to the preparation method, raw materials for synthesizing the copolymer are easily available, reaction conditions are mild, a copolymerized product is biodegradable, non-phosphorus and free of environmental impact, and synthetic and post-treatment costs are low.