Passive icephobic coatings attract increasing attention due to their harmless strategy for preventing undesirable ice accumulation. Slippery liquid-infused surfaces display extremely low ice adhesion (τ) but are argued for their poor stabilities and longevities due to inevitable liquid consumption. Herein we reported a class of lubricated polysiloxane coatings that can maintain low τice (∼2.2 kPa) for a long time (>800 icing/deicing cycle). The coatings have slippery lubricated surfaces and switchable porous matrices loading a large amount of liquid in isolated porevoids. Such droplet-embedded structure allows the surfaces to continuously maintain highly swelling states in a self-adaptive manner, i.e., only in the conditions icing or oil consumption occur dose oil is released, and thus show excellent long-term icephobicity. Besides, these materials exhibit good mechanical properties, antifatigue, and substrate adhesion. Because the coatings can be prepared via facile and green method from cheap starting materials, we foresee their broad application prospect in many fields.

中文翻译：

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用于长期疏冰的自我调节分泌物质

被动疏冰涂层由于其无害的防止积冰的策略而吸引了越来越多的关注。光滑的液体注入表面显示出极低的冰附着力（τ），但由于不可避免的液体消耗，其稳定性和寿命较差。在此，我们报道了一类润滑聚硅氧烷涂层，它可以长时间保持低τice（〜2.2 kPa）（> 800次结冰/除冰循环）。该涂层具有光滑润滑的表面和可转换的多孔基质，在孤立的孔隙中装载大量液体。这种液滴嵌入结构使得表面能够以自适应的方式持续保持高度溶胀状态，即只有在结冰或耗油的情况下才释放油，从而表现出优异的长期疏冰性。此外，这些材料还表现出良好的机械性能、抗疲劳性和基材附着力。由于该涂料可以通过廉价的原材料通过简便、绿色的方法制备，因此我们预见了其在许多领域的广阔应用前景。