Environment-friendly antirust liquid and preparation method thereof
CN122917635APending Publication Date: 2026-10-16NINGBO POLYTECHNIC
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Patent Information
- Application Number
- CN202611353642.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-09-02
- Publication Date
- 2026-10-16
AI Technical Summary
Technical Problem
然而，该技术方案中的外壳材料仅作为物理包覆层，本身不具备防锈活性，对防锈性能的贡献有限
Benefits of technology
[0036] (1) This invention constructs a core-shell composite rust inhibitor with pH-responsive intelligent release function by coating halloysite nanotubes loaded with sodium tungstate with a sodium alginate shell grafted with gallic acid. The sodium alginate shell is sealed under neutral conditions and dissolves and releases under acidic conditions, realizing the precise release of sodium tungstate in the corrosion micro-zone as needed. This avoids the problem of large-scale ineffective loss of corrosion inhibitors in traditional rust inhibitors, and significantly improves the utilization efficiency of corrosion inhibitors and the self-repairing ability of the rust inhibitor film.
✦ Generated by Eureka AI based on patent content.
Abstract
The present application relates to rust prevention technical field, especially to an environment-friendly rust preventive liquid and a preparation method thereof.The environment-friendly rust preventive liquid is composed of A component and B component;the A component includes the following raw materials by weight parts: water-based epoxy resin 10-30 parts, modified halloysite nanotube 1-5 parts, dispersing agent 0.5-2 parts, defoaming agent 0.1-0.5 parts, sodium molybdate 0.5-1.5 parts, deionized water 20-50 parts;the B component includes the following raw materials by weight parts: water-based epoxy curing agent 10-25 parts, deionized water 5-20 parts;the weight ratio of the A component to the B component is 2:1-4:1.The present application coats halloysite nanotube loaded with tungstate by grafted sodium alginate shell with gallic acid, and cooperates with free sodium molybdate, to build a triple synergistic rust prevention system of physical barrier, pH response release and chemical passivation, to realize good compromise of long-acting rust prevention performance and interface bonding strength.
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