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Author:

Zhang, Jialiang (Zhang, Jialiang.) | Cheng, Yang (Cheng, Yang.) | Yang, Qing (Yang, Qing.) | Liang, Jie (Liang, Jie.) | Fang, Zheng (Fang, Zheng.) | Hou, Xun (Hou, Xun.) | Chen, Feng (Chen, Feng.)

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Abstract:

Although superhydrophobic surfaces have shown great potential in oil-water separationanti-icing and self-cleaningthe practical applications were often limited by their brittle durability. The fragility of superhydrophobic surface structure is the main reason that hinders its practical application. Due to the further study of superhydrophobic surfacethe failure of superhydrophobic surface has also been explored. This paper reviews the research progress of durable superhydrophobic surface prepared femtosecond laser and its application. In the section of backgroundfirstlyseveral basic wettability models are introducedand the characteristics of durable superhydrophobic surfaces are analyzed. Thenthe advantages of femtosecond laser micro-nano processing in the preparation of superhydrophobic surfaces are discussed. The research progress of femtosecond laser preparation of the durable superhydrophobic surface for different materials such as polymermetal and glass were concluded. The application fields of durable superhydrophobic surface fabricated by femtosecond laser were summarized. There are several methods to improve the durability of the superhydrophobic surface according to the application requirements. Firstlythe mechanical stability of the superhydrophobic surface with multi-scale micro-nanocomposite structure is much higher than that of the single micron or nano-scale rough structure. Secondlythe durability of superhydrophobic surface can also be improved by strengthening the surface microstructure on the material surface through the bonding layer. This form of adhesive can not only strengthen the bonding strength between microstructure and surfacebut also play a buffer role when the surface is impacted by external forceprotecting the micro-nano rough structureand effectively improving the mechanical durability of superhydrophobic surface. Thirdlythe physical protection of micro-nano structures is carried out by constructing a surface protective layerthereby improving their mechanical durability. Finallythe construction of self-healing superhydrophobic surface has become a powerful mean to improve the durability. Different from the previous strategiesself-healing strategies mainly focus on the recovery of damaged superhydrophobic functionthereby extending its service life. Finallythe matrix material with good intrinsic durability can be selected. Combined with femtosecond lasera durable superhydrophobic surface can be prepared. Considering the failure reason of superhydrophobic surface and the advantages of femtosecond laser processingdurable superhydrophobic surfaces were prepared on different durable matrix materials which is of great significance to the practical application of superhydrophobic surfaces. The variety of application requirements of superhydrophobic surfaces are differentand the corresponding durability requirements also show a great variety. Regarding the matrix materialsthe superhydrophobic surface matrix material can be roughly divided into polymerglass and metal. In terms of polymersthe superhydrophobic surface with excellent durability in PTFE can be easily prepared by femtosecond laseras PTFE is in great stability. Besidesfemtosecond laser can also prepare light responsive superhydrophobic surface on shape memory polymer. After the surface structure is deformed by an external forceit can recover to the initial state under a sunlightand then restore to the superhydrophobic state. For metal materialsfemtosecond laser combined with low surface energy material modification can directly prepare superhydrophobic surfaces on stainless steelaluminumzinc and other metal surfacesand some of the superhydrophobic properties will change interestingly. For examplesuperhydrophobic surfaces fabricated on zinc can change the superhydrophobic properties in UV irradiation and dark storage. In terms of glassthe prepared superhydrophobic surface has very good mechanical stability and thermal stability. Based on the properties of the substrate materialadjusting the femtosecond laser processing strategy and parameters and then implementing appropriate chemical modification according to the needscan give the surface of the substrate material superhydrophobic properties. Generally speakingthe durability of superhydrophobic surface includes mechanical durability and chemical durability. To improve the mechanical durabilitymulti-scale micro-nano structures need to be constructed. The femtosecond laser has great advantages in constructing multi-scale micro-nano structureswhich can be applied to almost all hard materials. In terms of chemical durabilityfemtosecond laser also achieves very stable superhydrophobic surfaces on some chemically stable and difficult-to-machine materials. Based on many different matrix materialssuperhydrophobic materials have been increasingly applied in many fields such as self-cleaning oil-water separation and anti-icing. Superhydrophobic materials have been applied in real life in the field of self-cleaningchemical stabilityas well as anti-ultraviolet. In oil-water separationdue to the excellent durability of matrix materialsthe durable superhydrophobic materials play a huge role in solving oil pollution and industrial wastewater treatment. As for anti-icingdue to the low ice adhesion and mechanical durability in superhydrophobic materialsthe key problems of transportation and aviation are hopeful to be solved. With the advantages of high machining accuracygood universality and strong controllability of femtosecond laser in the field of micro-nano processingsupplemented by other methods such as chemical modificationand combined with the failure characteristics of superhydrophobic surfacesit is expected to prepare durable superhydrophobic surfaces on many materialswhich also greatly expands the application prospect of durable superhydrophobic surfaces in the fields of self-cleaningoil-water separation and antiicing. © 2022 Chinese Optical Society. All rights reserved.

Keyword:

Adhesives Cleaning Durability Femtosecond lasers Hydrophobicity Mechanical stability Microstructure Nanostructures Self-healing materials Separation Surface properties

Author Community:

  • [ 1 ] [Zhang, Jialiang]Shaanxi Key Laboratory of Photonics Technology for Information, State Key Laboratory for Manufacturing System Engineering, School of Electronics & Information Engineering, Xi'an Jiaotong University, Xi'an; 710049, China
  • [ 2 ] [Cheng, Yang]School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an; 710049, China
  • [ 3 ] [Yang, Qing]School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an; 710049, China
  • [ 4 ] [Liang, Jie]Shaanxi Key Laboratory of Photonics Technology for Information, State Key Laboratory for Manufacturing System Engineering, School of Electronics & Information Engineering, Xi'an Jiaotong University, Xi'an; 710049, China
  • [ 5 ] [Fang, Zheng]School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an; 710049, China
  • [ 6 ] [Hou, Xun]Shaanxi Key Laboratory of Photonics Technology for Information, State Key Laboratory for Manufacturing System Engineering, School of Electronics & Information Engineering, Xi'an Jiaotong University, Xi'an; 710049, China
  • [ 7 ] [Chen, Feng]Shaanxi Key Laboratory of Photonics Technology for Information, State Key Laboratory for Manufacturing System Engineering, School of Electronics & Information Engineering, Xi'an Jiaotong University, Xi'an; 710049, China

Reprint Author's Address:

  • F. Chen;;Shaanxi Key Laboratory of Photonics Technology for Information, State Key Laboratory for Manufacturing System Engineering, School of Electronics & Information Engineering, Xi'an Jiaotong University, Xi'an, 710049, China;;email: chengfeng@mail.xjtu.edu.cn;;

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Source :

Acta Photonica Sinica

ISSN: 1004-4213

Year: 2022

Issue: 7

Volume: 51

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 1

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 4

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