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Li Q, Guo Z. A highly fluorinated SiO 2 particle assembled, durable superhydrophobic and superoleophobic coating for both hard and soft materials. NANOSCALE 2019; 11:18338-18346. [PMID: 31573598 DOI: 10.1039/c9nr07435j] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Solid surfaces with unique superhydrophobic and superoleophobic wettability in air have thus far shown incomparable applications in various fields. However, existing superoleophobic surfaces are always limited by their sophisticated fabrication strategies. Moreover, surface durability also restricts their further application since the well-designed structures and low-surface-energy chemical components are very susceptible to chemical and physical damage. In this study, we report the exploitation of a durable superhydrophobic and superoleophobic spray and dip coating, which is successfully fabricated by employing 3-aminopropyltriethoxysilane and fluoroalkyl silane to modify two sizes of SiO2 particles. The wettability of the developed surface can be tuned by adjusting the mass ratio of the particles due to the change in hierarchical structure. On account of its super-repellence and independence from the substrate, the coating can be coated onto various hard and soft substrates. The as-prepared surfaces exhibit superphobicity to both water and organic fluids with low surface tension, and these liquid droplets can easily roll and bounce on the coated surface, leaving no residues. Furthermore, the coating shows positive antifouling and self-cleaning performances when contaminated or immersed in different liquids. Importantly, the coating is also durable, withstanding harsh environments, such as exposing the coated surface in acid and alkali solution or to high temperatures for a long time, without obviously altering its superamphiphobicity due to the high adhesiveness of poly(vinylidene fluoride hexafluoropropylene) and stable re-entrant-like structure. Its merits of a straightforward fabrication approach and multifunctionality may make the coating suitable for widespread practical applications.
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Affiliation(s)
- Qi Li
- Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials and Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei University, Wuhan, People's Republic of China. and State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, People's Republic of China
| | - Zhiguang Guo
- Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials and Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei University, Wuhan, People's Republic of China. and State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, People's Republic of China
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Surface topographies of biomimetic superamphiphobic materials: design criteria, fabrication and performance. Adv Colloid Interface Sci 2019; 269:87-121. [PMID: 31059923 DOI: 10.1016/j.cis.2019.04.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Revised: 03/15/2019] [Accepted: 04/24/2019] [Indexed: 12/26/2022]
Abstract
Superamphiphobicity is a wetting phenomenon that not only water but also oils or organic solvents with low surface tension exhibit large contact angles above 150° along with low contact angle hysteresis on solid surface. It is well known that both chemical constituent and surface roughness have impacts on the wettability of solid surface. Herein, several fundamental wetting states and design criteria for re-entrant structures are introduced first. Then, various chemical modification materials endowing solid substrates low surface energy are summarized subsequently. Furthermore, roughening processes conferring hierarchical or re-entrant topographic structures on surfaces are classified based on different types of topographies abstracted from the natural oil-repellent creatures (mushroom-like structures) as well as bio-inspired superamphiphobic surfaces (i.e., randomly distributed nanostructures, regularly patterned microstructures and other complex hierarchical structures). Significantly, the impalement pressure and formulated rules of various re-entrant profiles are recommended in detail. At the same time, fabrication, outstanding performances such as mechanical durability, chemical stability are also mentioned according to different types of morphologies. Beyond that, current fabrication obstacles and future prospects are proposed simultaneously in the end.
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Wang F, Guo Z. Facile synthesis of superhydrophobic three-metal-component layered double hydroxide films on aluminum foils for highly improved corrosion inhibition. NEW J CHEM 2019. [DOI: 10.1039/c8nj05732j] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A simple hydrothermal method was presented to obtain various superhydrophobic ZnMgAl layered double hydroxide films on aluminum foils (AF) with excellent corrosion inhibition.
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Affiliation(s)
- Fengyi Wang
- Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials and Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials
- Hubei University
- Wuhan 430062
- China
- State Key Laboratory of Solid Lubrication
| | - Zhiguang Guo
- Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials and Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials
- Hubei University
- Wuhan 430062
- China
- State Key Laboratory of Solid Lubrication
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One-Step Preparation of Super-Hydrophobic Micro-Nano Dendrites on Al Alloy for Enhanced Corrosion Resistance. METALS 2018. [DOI: 10.3390/met8110960] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Corrosion failure is a thorny issue that restricts the applications of Al alloys. As a research hotspot in functional realization, hydrophobic fabrication exactly offers an efficient method to settle metallic corrosions. This work has developed a facile and low-cost method to enhance corrosion resistance of Al alloys. The micro-nano dendrites have been firstly prepared on metallic substrate using one-step potentiostatic deposition. Then, wetting and electrochemical behaviors have been systematically investigated after stearic acid modification. Results show that the as-prepared surface possesses amplified and durable water repellence with an apparent contact angle (CA) of 154.2° and a sliding angle (SA) of 4.7°. Meanwhile, owing to the trapped air in dendrites, the newly-generated solid-air-liquid interfaces help to resist seawater penetration by reducing interfacial interactions on the super-hydrophobic surface as well as significantly enhance its corrosion resistance. This work sheds positive insights into extending the applications of Al alloys in many areas, especially for ocean engineering fields.
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One-Step Potentiostatic Deposition of Micro-Particles on Al Alloy as Superhydrophobic Surface for Enhanced Corrosion Resistance by Reducing Interfacial Interactions. COATINGS 2018. [DOI: 10.3390/coatings8110392] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Corrosion failure is a thorny problem that restricts the application of Al alloys. As a new technique for functional realization, hydrophobic preparation offers an efficient approach to solve corrosion problem. This work has developed a facile and low-cost method to endow Al alloy with enhanced water-repellent and anticorrosion abilities. The micro-particles have been firstly prepared by one-step deposition process. Furthermore, wetting and electrochemical behaviors of as-prepared structures have been investigated after silicone modification. Results show that the fabricated surface possesses excellent superhydrophobicity with a water contact angle (CA) of 154.7° and a sliding angle (SA) of 6.7°. Meanwhile, the resultant surface is proved with enhanced corrosion resistance by reducing interfacial interactions with seawater, owing to newly-generated solid-air-liquid interfaces. This work sheds positive insights into extending applications of Al alloys, especially in oceaneering fields.
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Jeong JI, Yang JH, Jung JH, Lee KH, Kim HJ, Jung YH, Kim TY, Lee MH, Hwang SH, Wu P, Kim JH, Kim SS. Super anticorrosion of aluminized steel by a controlled Mg supply. Sci Rep 2018; 8:3760. [PMID: 29491373 PMCID: PMC5830645 DOI: 10.1038/s41598-018-22097-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Accepted: 02/14/2018] [Indexed: 11/16/2022] Open
Abstract
The current anticorrosion strategy makes use of coatings to passively protect the steel, which faces increasing challenge due to the tightened environmental regulations and high cost. This paper reports a new method for achieving a super anticorrosion function in Al-Si alloys through Mg nano-metallurgy, which was characterized by real-time synchrotron measurements. The unique function is based on the formation of an amorphous and self-charge-compensated MgAl2O4-SiO2 phase between the grain boundaries to help prevent the penetration of oxygen species through the grain boundaries. Through this, the corrosion resistance of pristine aluminized steel could be improved almost 20 fold. An analysis of the phases, microstructures of the Mg-coated aluminized layer and corrosion products consistently supported the proposed mechanism. This charge-compensated corrosion resistance mechanism provides novel insight into corrosion resistance.
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Affiliation(s)
- Jae In Jeong
- Materials Solution Research Group, Research Institute of Industrial Science & Technology, 67 Cheongam-ro, Nam-gu, Pohang, 37673, Republic of Korea.
| | - Ji Hoon Yang
- Materials Solution Research Group, Research Institute of Industrial Science & Technology, 67 Cheongam-ro, Nam-gu, Pohang, 37673, Republic of Korea
| | - Jae Hun Jung
- Materials Solution Research Group, Research Institute of Industrial Science & Technology, 67 Cheongam-ro, Nam-gu, Pohang, 37673, Republic of Korea
| | - Kyung Hwang Lee
- Materials Solution Research Group, Research Institute of Industrial Science & Technology, 67 Cheongam-ro, Nam-gu, Pohang, 37673, Republic of Korea
| | - Hye Jeong Kim
- Materials Solution Research Group, Research Institute of Industrial Science & Technology, 67 Cheongam-ro, Nam-gu, Pohang, 37673, Republic of Korea
| | - Yong Hwa Jung
- Posco Smart Coating Technology-Dry Coating Project Dept., POSCO Gwangyang Research Lab., 20-26 Pokposarang-gil, Gwangyang, 57807, Republic of Korea
| | - Tae Yeob Kim
- Posco Smart Coating Technology-Dry Coating Project Dept., POSCO Gwangyang Research Lab., 20-26 Pokposarang-gil, Gwangyang, 57807, Republic of Korea
| | - Myeong Hoon Lee
- Division of Marine Engineering, Korea Maritime & Ocean University, 727 Taejong-ro, Yeongdo-gu, Busan, 49112, Republic of Korea
| | - Sung Hwa Hwang
- Division of Marine Engineering, Korea Maritime & Ocean University, 727 Taejong-ro, Yeongdo-gu, Busan, 49112, Republic of Korea
| | - Ping Wu
- Entropic Interface Group, Singapore University of Technology & Design, Singapore, 487372, Singapore.
| | - Jae-Hun Kim
- Department of Materials Science and Engineering, Inha University, Incheon, 22212, Republic of Korea
| | - Sang Sub Kim
- Department of Materials Science and Engineering, Inha University, Incheon, 22212, Republic of Korea.
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Han J, Cai M, Lin Y, Liu W, Luo X, Zhang H, Wang K, Zhong M. Comprehensively durable superhydrophobic metallic hierarchical surfaces via tunable micro-cone design to protect functional nanostructures. RSC Adv 2018; 8:6733-6744. [PMID: 35540429 PMCID: PMC9078309 DOI: 10.1039/c7ra13496g] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 01/30/2018] [Indexed: 01/21/2023] Open
Abstract
Superhydrophobic surfaces have been intensively investigated in recent years. However, their durability remains a major challenge before superhydrophobic surfaces can be employed in practice. Although various works have focused on overcoming this bottleneck, no single surface has ever been able to achieve the comprehensive durability (including tangential abrasion durability, dynamic impact durability and adhesive durability) required by stringent industrial requirements. Within the hierarchical structures developed for superhydrophobicity in typical plants or animals by natural evolution, microstructures usually provide mechanical stability, strength and flexibility to protect functional nanostructures to enable high durability. However, this mechanism for achieving high durability is rarely studied or reported. We employed an ultrafast laser to fabricate micro/nanohierarchical structures on metal surfaces with tunable micro-cones and produced abundant nanostructures. We then systematically investigated their comprehensive mechanical durability by fully utilizing the protective effect of the microstructures on the functional nanostructures via the tunable design of micro-cones. We confirm that the height and spatial period of the microstructures were crucial for the tangential abrasion durability and dynamic impact durability, respectively. We finally fabricated optimized superhydrophobic tungsten hierarchical surfaces, which could withstand 70 abrasion cycles, 28 min of solid particle impact or 500 tape peeling cycles to retain contact angles of greater than 150° and sliding angles of less than 20°, which demonstrated exceptional comprehensive durability. The comprehensive durability, in particular the dynamic impact durability and adhesive durability, are among the best published results. This research clarifies the mechanism whereby the microstructures effectively protected the functional nanostructures to achieve high durability of the superhydrophobic surfaces and is promising for improving the durability of superhydrophobic surfaces and thus for practical applications.
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Affiliation(s)
- Jinpeng Han
- Laser Materials Processing Research Center, School of Materials Science and Engineering, Tsinghua University Beijing 100084 P. R. China
| | - Mingyong Cai
- Laser Materials Processing Research Center, School of Materials Science and Engineering, Tsinghua University Beijing 100084 P. R. China
| | - Yi Lin
- Laser Materials Processing Research Center, School of Materials Science and Engineering, Tsinghua University Beijing 100084 P. R. China
| | - Weijian Liu
- Laser Materials Processing Research Center, School of Materials Science and Engineering, Tsinghua University Beijing 100084 P. R. China
| | - Xiao Luo
- Laser Materials Processing Research Center, School of Materials Science and Engineering, Tsinghua University Beijing 100084 P. R. China
| | - Hongjun Zhang
- Laser Materials Processing Research Center, School of Materials Science and Engineering, Tsinghua University Beijing 100084 P. R. China
| | - Kaiyang Wang
- Laser Materials Processing Research Center, School of Materials Science and Engineering, Tsinghua University Beijing 100084 P. R. China
| | - Minlin Zhong
- Laser Materials Processing Research Center, School of Materials Science and Engineering, Tsinghua University Beijing 100084 P. R. China
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