Rare earth-based temperature-sensitive organic supramolecular gel accelerating ice-melting coating material and preparation method thereof

Rare earth-based thermosensitive organic supramolecular gel coating material rapidly melts ice at low temperatures through the heat absorption of rare earth compounds, solving the problems of wear and high cost in existing railway de-icing methods and achieving efficient and low-cost de-icing effect.

CN118879202BActive Publication Date: 2026-06-02TIANJIN BAOGANG RES INST OF RARE EARTHS CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TIANJIN BAOGANG RES INST OF RARE EARTHS CO LTD
Filing Date
2024-07-16
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing railway de-icing methods can easily cause wear and tear on precision components. Manual de-icing is costly and inefficient, and cannot quickly melt ice under low-temperature conditions.

Method used

A rare earth-based thermosensitive organic supramolecular gel coating material is used to rapidly melt ice layers at low temperatures through the endothermic effect of rare earth compounds. The material consists of four-carbon bromine-chain columnar aromatics, rare earth nano-borides, reaction solvents, and catalysts, and achieves reversible transformation by utilizing host-guest interactions and hydrogen bonds.

Benefits of technology

It can rapidly melt ice at low temperatures, reducing manual de-icing time, lowering costs, and avoiding wear. The material has high hydrophobicity and reversibility, which improves de-icing efficiency and coating durability.

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Abstract

The application provides a rare earth-based temperature-sensitive organic supermolecular gel ice-melting accelerating coating material and a preparation method. The material uses a single-modified columnar arene, has better flexibility than a multi-modified compound, is convenient for producing a structure transition, and a compound modified by four carbon chains has a higher yield than a compound modified by a longer carbon chain, and can generate a substitution reaction faster than the longer carbon chain at normal temperature and pressure. The one-step synthesis method is simple and easy to operate, and connects lanthanum hexaboride to a polymer chain in a chemical bond mode, compensates for the low strength and poor toughness of inorganic nanoparticles and the weak weather resistance and stability of organic matters, and uses a cyan compound which has a strong cavity bonding force with the columnar arene, so that the lanthanum hexaboride is not easy to fall off with a phase transition during ice removal, and thus loses the photo-thermal effect.
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