An experimental apparatus and method for evaluating the dynamic anti-icing performance of superhydrophobic materials

By using a combination of heating film and monitoring components in the anti-icing performance test of superhydrophobic materials, the problem of inaccurate measurement of freezing delay time in ultra-low temperature environments was solved, a lubricity test standard was established, and a multi-dimensional evaluation of the anti-icing performance of superhydrophobic materials was achieved, improving the accuracy and engineering applicability of the evaluation.

CN121656314BActive Publication Date: 2026-05-26AIR FORCE UNIV PLA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
AIR FORCE UNIV PLA
Filing Date
2026-02-09
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

In ultra-low temperature environments, traditional methods for evaluating the anti-icing performance of superhydrophobic materials fail, as they cannot accurately measure the freezing delay time and lack a unified lubricity testing standard, thus limiting the application of materials under complex friction conditions.

Method used

An experimental apparatus and method for evaluating the dynamic anti-icing performance of superhydrophobic materials were developed. By adding a heating film under the substrate and combining it with a high-speed camera and a thermal imaging camera, the icing process was monitored in real time. The hydrophobicity and lubricity were evaluated by adjusting the power of the heating film, and a unified lubricity test standard was established.

Benefits of technology

It enables accurate measurement of freezing delay time and lubrication performance in ultra-low temperature environments, provides multi-dimensional anti-icing performance evaluation, and improves the accuracy and engineering applicability of the evaluation.

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Abstract

An experimental apparatus and method for evaluating the dynamic anti-icing performance of superhydrophobic materials are disclosed, relating to the field of superhydrophobic material anti-icing technology. The technical solution includes a test section containing a model. A substrate is connected to the outer surface of the model, and a heating film is placed between the substrate and the model. The beneficial effects of this technical solution are: by adding a heating film under the substrate, the initial freezing time in ultra-low temperature experiments is effectively delayed, ensuring that the test piece does not immediately freeze when the ultra-low temperature is activated, thus guaranteeing the accurate acquisition of the initial freezing time. Simultaneously, by combining a high-speed camera and a thermal imaging camera, the freezing process and degree can be visually observed, providing a visual basis for comprehensive evaluation. When the leading edge of the substrate freezes, the power of the heating film is increased to melt the ice layer, and the overflow water re-condenses into overflow ice away from the heating zone. By measuring the relative position of the overflow ice and the reference chord length, the surface lubrication performance of the material can be further evaluated.
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