Authors
Yuanyuan Tong, Mengshi Jin, Shuai Lv, Rui Zhang, Yuan Yuan, Xueqin Zhang, Baoping Lin, Tao Jiang, Bo Li, Ying Sun
Published in
Small (Weinheim an der Bergstrasse, Germany). Pages e75555. Sep 03, 2026. Epub Sep 03, 2026.
Abstract
Ice accretion on critical infrastructure threatens operational safety and energy efficiency, necessitating durable anti-icing coatings. While slippery liquid-infused porous surfaces (SLIPS) exhibit low ice adhesion, lubricant depletion compromises their durability. Crosslinked polymer networks improve longevity, yet the low modulus of polydimethylsiloxane (PDMS) induces structural fatigue. To reconcile liquid storage, icephobic performance and mechanical robustness, this study integrates polyhedral oligomeric silsesquioxane (POSS) as rigid skeletal nodes within a silicone elastomer matrix. Direct hydrosilylation achieves a 5 wt.% POSS loading limit; subsequent tetrafunctional siloxane modification increases this to 7.5 wt.% through enhanced compatibility and crosslinking density. This optimized network enables homogeneous nanodomain dispersion, doubled liquid loading, and enhanced storage stability via a solid-phase liquid storage-liquid-phase lubrication-interfacial self-replenishment ternary mechanism. The composite exhibits initial ice adhesion < 2 kPa, freezing delay of 765 s at -20°C, ice nucleation temperature of -21°C, recalescence time of 180 s, and < 20 kPa adhesion after 450 cycles, alongside a dielectric constant of 2.5. Rigorous durability tests confirm < 20 kPa adhesion, with broad substrate compatibility, self-cleaning, and anti-condensation functionality. This strategy effectively balances liquid storage capacity with mechanical robustness for scalable anti-icing applications.
PMID:
42689353
Bibliographic data and abstract were imported from PubMed on 03 Sep 2026.
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