A scale inhibitor for membranes, and a preparation method and application thereof
By combining carboxylic acid nanosphere polymers with modified polyepoxysuccinic acid, the problem of insufficient targeted antiscalant in reverse osmosis membrane systems is solved, achieving highly efficient scale inhibition and corrosion inhibition effects on calcium sulfate and calcium phosphate scale, and extending the stable operation time of the membrane system.
CN120483400BActive Publication Date: 2026-06-05HANGZHOU SHANGSHANRUO WATER ENVIRONMENTAL PROTECTION TECH CO LTD +1
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HANGZHOU SHANGSHANRUO WATER ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2023-07-04
- Publication Date
- 2026-06-05
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Figure CN120483400B_ABST
Abstract
The application discloses a scale inhibitor for membranes and a preparation method and application thereof, and relates to the technical field of water treatment chemicals. The scale inhibitor for membranes comprises at least organic phosphonic acid and a carboxylic acid polymer. The carboxylic acid polymer comprises carboxylic acid nanospherical polymers which are obtained by grafting acrylic acid and modified monomers on the surface of polystyrene cores. The modified monomers are chemical bonding products of methacryloyl chloride and hydroxypropane sulfonic acid pyridine salt. The scale inhibitor prepared by the application has a synergistic effect of the compound components, has a better scale inhibition effect, has a greatly improved corrosion inhibition capacity, presents a multi-effect effect of one agent, and has a long-acting scale inhibition performance, so that the stable operation of a reverse osmosis membrane system can be better maintained.
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