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As an attempt to combine antifreeze and superhydrophobicity, propylene glycol (PG) is encaged in a porous superhydrophobic skeleton composed of ZnO tetrapods and polydimethylsiloxane. At room temperature, the PG-infused skeleton presents a large contact angle, a small sliding angle, and good repellency against impacting water drops, while it effectively defers frost emergence and growth in humid and cooling conditions. The PG-infused skeleton delays the frost onset 6 and 18 times longer than the superhydrophobic skeleton and silicone oil-infused skeleton, respectively. Moreover, it can repeatedly serve as a frost-deterrent surface up to 10 times without replenishment and is durable under frosting/defrosting cycles. The merits are ascribed to the nonaffinity between glycol and the skeleton, the humidity sink effect, and self-secretion of glycol out of the skeleton under cooling. The former lets the surface asperities of the skeleton be exposed. And the latter imparts good anti-icing, antifrosting, and deicing performance to the PG-infused skeleton. The work provides insights into liquid-infused surfaces and ice-phobic surfaces.

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• In Copyright
  

  This document is the unedited Author’s version of a Submitted Work that was subsequently accepted for publication in Langmuir, copyright © 2025 American Chemical Society after peer review. To access the final edited and published work see https://doi.org/10.1021/acs.langmuir.5c01983.

Keyword: liquid-infused surface, superhydrophobic, antifreeze, anti-frosting, anti-icing

Date published: 2025-07-22

Publisher: American Chemical Society (ACS)

Journal:

• Langmuir (ISSN: 07437463) vol. 41 issue. 28 p. 18741-18753

Funding:

• Core Research for Evolutional Science and Technology JPMJCR19J3

Manuscript type: Author's version (Submitted manuscript)

MDR DOI: https://doi.org/10.48505/nims.5620

First published URL: https://doi.org/10.1021/acs.langmuir.5c01983

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Updated at: 2025-07-31 08:30:20 +0900

Published on MDR: 2025-07-31 08:20:41 +0900