Biochar-based super-hydrophobic photo-thermal anti-icing coating material and preparation method thereof

By modifying biochar and loading it with MoS2, a superhydrophobic photothermal anti-icing coating material was prepared, which solved the problem of icing on wind turbine blades, achieved efficient and low-cost de-icing effect, and improved power generation efficiency and equipment safety.

CN122080685APending Publication Date: 2026-05-26NORTHEAST AGRICULTURAL UNIVERSITY
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Patent Information

Application Number
CN202610292910.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-03-11
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Wind turbine blades are prone to icing under low temperature, rain, snow and other weather conditions, which leads to reduced power generation efficiency and equipment safety threats. Existing de-icing methods are energy-intensive, have high maintenance costs, long construction cycles and short de-icing time.

Method used

Biochar was modified with potassium hydroxide and hydrogen to form a microporous structure and introduce hydrophobic hydrogen atoms. Combined with MoS2 loading, a superhydrophobic photothermal anti-icing coating material was prepared, which actively de-iced by utilizing the photothermal effect of MoS2.

Benefits of technology

It improves the light absorption and heat conduction capacity of the coating, reduces ice adhesion strength, achieves active and efficient de-icing, reduces the icing area, improves aerodynamic performance, and reduces energy consumption and maintenance costs.

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Abstract

The invention relates to the technical field of coating materials, in particular to a biochar-based super-hydrophobic photo-thermal anti-icing coating material and a preparation method thereof. The preparation method of the super-hydrophobic photo-thermal anti-icing coating material comprises the following steps: performing primary modification treatment on biochar by adopting potassium hydroxide to obtain first modified biochar; carrying out secondary modification treatment on the first modified biochar by adopting hydrogen to obtain second modified biochar; mixing and dissolving the second modified charcoal, a sulfur source and a molybdenum source, and performing heat treatment to obtain MoS2-loaded modified charcoal; and mixing the MoS2 loaded modified charcoal with a binder, so as to obtain the super-hydrophobic photo-thermal anti-icing coating material. The invention aims to solve the problems of high energy consumption and maintenance cost, long construction period and short deicing time efficiency of the traditional deicing means of the wind driven generator blade.
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