Jamil Muhammad Imran, Zhan Xiaoli, Chen Fengqiu, Cheng Dangguo, Zhang Qinghua
Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, College of Chemical and Biological Engineering , Zhejiang University , Hangzhou 310027 , China.
Institute of Zhejiang University-Quzhou , Quzhou 324000 , China.
ACS Appl Mater Interfaces. 2019 Aug 28;11(34):31532-31542. doi: 10.1021/acsami.9b09819. Epub 2019 Aug 15.
Ice formation and accretion affect residential and commercial activities. Icephobic coatings decrease the ice adhesion strength (τ) to less than 100 kPa. However, rare icephobic coatings remove the ice under the action of gravity or natural winds. The icephobicity of such coatings depends on materials with low interfacial toughness. We develop durable candle soot icephobic coating with RTV-1 as a low-modulus binding material. Heterogeneous nucleation on 20-40 nm candle soot particles and their fracture mechanism are discussed. The developed coating always shows durable Cassie-Baxter superhydrophobic state with low ice adhesion (18 kPa) and maintains the τ value of about 25 kPa after severe mechanical abrasion, 30 liquid nitrogen/water cycles, 100 frosting/defrosting cycles, 100 icing/deicing cycles, acid/base exposure, under UV light, and exposure to natural freezing rain in Hangzhou. In addition, the proposed technique is time-efficient, inexpensive, and suitable for large-scale applications.
结冰和积冰会影响住宅和商业活动。憎冰涂层可将冰附着力强度（τ）降低至100 kPa以下。然而，很少有憎冰涂层能在重力或自然风作用下除冰。此类涂层的憎冰性取决于具有低界面韧性的材料。我们以RTV - 1作为低模量粘结材料开发了耐用的蜡烛烟灰憎冰涂层。讨论了20 - 40 nm蜡烛烟灰颗粒上的异质成核及其断裂机制。所开发的涂层始终呈现出持久的卡西 - 巴克斯特超疏水状态，冰附着力低（18 kPa），并且在经过严重机械磨损、30次液氮/水循环、100次结霜/除霜循环、100次结冰/融冰循环、酸碱暴露、紫外线照射以及在杭州暴露于自然冻雨后，仍能保持约25 kPa的τ值。此外，所提出的技术效率高、成本低，适用于大规模应用。
