Reverse osmosis multi-effect scale inhibitor and preparation method thereof

The invention discloses a reverse osmosis multi-effect scale inhibitor and a preparation method thereof, and belongs to the technical field of scale inhibitors, the reverse osmosis multi-effect scale inhibitor comprises the following components by mass: 10-15% of 2-phosphonobutane-1, 2, 4-tricarboxylic acid, 20-30% of sodium polyacrylate, 1-3% of isothiazolinone, 2-4% of 2, 2-dibromo-3-nitrilopropionamide, 1-3% of polyethylene glycol, and the balance of water. And the balance of deionized water. The scale inhibitor disclosed by the invention has relatively high dispersing capacity and calcium tolerance, can still effectively control scaling and control breeding of microorganisms under the conditions of high hardness, high alkali, high iron, high sulfate radical, high pH, high organic matter and high microorganisms, and is a relatively ideal multi-effect scale inhibition dispersant for reverse osmosis water treatment. 本发明公开一种反渗透多效能阻垢剂及其制备方法，属于阻垢剂技术领域，反渗透多效能阻垢剂以质量百比计，其组分包括：2-膦酸丁烷-1,2,4-三羧酸10-15％，聚丙烯酸钠20-30％，异噻唑