Superhydrophobic coatings are promising for anti-icing, however, preparation of those with both excellent passive anti-icing and active deicing functions is very challenging, especially via eco-friendly approaches. Here, we report non-fluorinated and durable photothermal superhydrophobic coatings based on natural attapulgite nanorods for efficient anti-icing and deicing. The attapulgite nanorods were coated with polypyrrole by oxidation polymerization of pyrrole, and then coated with hexadecyl polysiloxane by hydrolytic condensation. The photothermal superhydrophobic coatings were prepared by spray-coating the mixture of the modified attapulgite suspension and a silicone resin onto aluminum plates. The coatings show (i) excellent superhydrophobicity (water contact angle = 162.7°, sliding angle = 2.7°) due to the three-tier hierarchical micro-/nanostructure and low surface energy, (ii) excellent photothermal effect (increase in surface temperature to 70 °C in 3 min under 1 sun) due to the enlarged surface area of polypyrrole exposed to sunlight by the hierarchical micro-/nanostructure, and (iii) good mechanical, chemical and thermal stability. Consequently, in both simulated and outdoor environments, the coatings show excellent anti-icing and deicing performances, e.g., significantly prolonged water freezing time, greatly reduced ice adhesion force, fast photothermal deicing and efficient long-term (4 weeks) outdoor anti-icing/deicing. The coatings are very promising for practical applications due to the excellent performances and eco-friendly method.

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基于凹凸棒石纳米棒的非氟化耐用光热超疏水涂层，可有效防冰和除冰

超疏水涂层在防冰方面很有前景，然而，制备兼具优异的被动防冰和主动除冰功能的涂层非常具有挑战性，特别是通过环保方法。在这里，我们报道了基于天然凹凸棒石纳米棒的非氟化耐用光热超疏水涂层，可有效防冰和除冰。通过吡咯氧化聚合将凹凸棒纳米棒包覆聚吡咯，然后通过水解缩合包覆十六烷基聚硅氧烷。通过将改性凹凸棒石悬浮液和有机硅树脂的混合物喷涂到铝板上制备光热超疏水涂层。该涂层表现出（i）由于三层分层微/纳米结构和低表面能而具有优异的超疏水性（水接触角= 162.7°，滑动角= 2.7°），（ii）优异的光热效应（表面温度升高至70°C 在 1 太阳下 3 分钟内）由于分级微/纳米结构扩大了聚吡咯暴露在阳光下的表面积，以及（iii）良好的机械、化学和热稳定性。因此，在模拟和室外环境下，该涂料均表现出优异的防冰和除冰性能，例如显着延长水结冰时间、大大降低冰附着力、快速光热除冰和高效的长期（4周）室外防冰。 /除冰。由于其优异的性能和环保的方法，该涂料在实际应用中非常有前景。