Tellurium nanowire / modified diatomite composite photothermal superhydrophobic anti-icing coating, preparation method and application thereof

By using a composite photothermal coating of tellurium nanowires and modified diatomaceous earth, the problems of high cost and low efficiency of existing coatings are solved, achieving low-cost and high-efficiency anti-icing effect, and possessing excellent photothermal conversion and hydrophobic properties.

CN122302673APending Publication Date: 2026-06-30HUBEI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUBEI UNIV
Filing Date
2026-03-20
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing photothermal anti-icing coatings use high-cost, complex photothermal fillers, and suffer from insufficient photothermal conversion efficiency or poor stability, making it difficult to achieve efficient and low-cost anti-icing effects.

Method used

Tellurium nanowires were combined with modified diatomaceous earth. Tellurium nanowires were synthesized by a surfactant-assisted method and dispersed with perfluorinated diatomaceous earth in epoxy resin to form a composite photothermal superhydrophobic coating. The high efficiency of tellurium nanowires and the porous structure of diatomaceous earth, combined with the adhesive effect of epoxy resin, were used to construct a micro-nano structure to improve hydrophobicity and anti-icing performance.

Benefits of technology

It achieves low-cost, high-efficiency photothermal conversion and superhydrophobic properties, can delay icing and quickly de-icing in low-temperature environments, and has excellent anti-icing performance and photothermal de-icing effect.

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Abstract

This invention relates to the field of photothermal anti-icing and de-icing technology, and discloses a tellurium nanowire / modified diatomaceous earth composite photothermal superhydrophobic anti-icing coating, its preparation method, and its application. The method includes: (1) mixing diatomaceous earth, an alkali-alcohol mixture, water, a fluorinated modifier, and an alkyl orthosilicate, stirring, then allowing it to stand and undergo solid-liquid separation to obtain fluorinated diatomaceous earth powder; (2) mixing tellurium nanowires, fluorinated diatomaceous earth powder, and an epoxy resin-containing solution, stirring to obtain an anti-icing and de-icing coating system, spraying the anti-icing and de-icing coating system onto the surface of a substrate, and curing. This solution disperses tellurium nanowires and perfluorinated diatomaceous earth in epoxy resin to form a composite photothermal superhydrophobic coating composed of tellurium nanowires, modified diatomaceous earth, and epoxy resin. The combined structural features and functional advantages of this coating give it significant application potential in the fields of anti-icing and de-icing.
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