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Zhang H, Du H, Zhu D, Zhao H, Zhang X, He F, Wang L, Lv C, Hao P. Ice Adhesion Properties on Micropillared Superhydrophobic Surfaces. ACS APPLIED MATERIALS & INTERFACES 2024; 16:11084-11093. [PMID: 38362761 DOI: 10.1021/acsami.3c18852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/17/2024]
Abstract
In this work, we investigate the freezing behavior and ice adhesion properties of sessile drops on micropillared superhydrophobic surfaces (SHSs) with various sizes, which are of practical importance for anti/deicing. First of all, it is demonstrated that the recalescence is related only to the supercooling degree of drops but not to the geometrical parameters of micropillars. The freezing time of sessile drops first increases and then decreases with the area fraction of the SHSs, which demonstrates the nonmonotonic dependence of the icing time on the area fraction. Moreover, the influence of the geometrical parameters of the micropillars on the ice adhesion is discussed. With the decrease of the substrate temperature, the wetting state of the adhesive ice can be transformed from the Cassie ice to the Wenzel ice. For the Cassie ice, the adhesive force is proportional to the area fraction of the SHSs. Interestingly, experimental results show that there exist two interfacial debonding modes of the Wenzel ice: translational debonding and rotational debonding. Furthermore, it is found that the rotational debonding mode contributes to a much lower adhesive force between the ice and the micropillared surface compared to that of the translational debonding mode. By analyzing the critical interfacial energy release rate of the two modes, we deduce the threshold between the two modes, which is quantified as the geometrical parameters of the micropillars. In addition, quantitative relations between the geometrical parameters and the adhesion strengths of the two modes are also obtained. We envision that this work would shed new light on the design optimization of anti/deicing materials.
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Affiliation(s)
- Haixiang Zhang
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
- Applied Mechanics Laboratory, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China
| | - Hongcheng Du
- Applied Mechanics Laboratory, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China
- Center for Nano and Micro Mechanics, Tsinghua University, Beijing 100084, China
| | - Dongyu Zhu
- AVIC Aerodynamics Research Institute, Shenyang, Liaoning 110034, China
| | - Huanyu Zhao
- AVIC Aerodynamics Research Institute, Shenyang, Liaoning 110034, China
| | - Xiwen Zhang
- Applied Mechanics Laboratory, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China
| | - Feng He
- Applied Mechanics Laboratory, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China
| | - Lin Wang
- Center for Nano and Micro Mechanics, Tsinghua University, Beijing 100084, China
| | - Cunjing Lv
- Applied Mechanics Laboratory, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China
- Center for Nano and Micro Mechanics, Tsinghua University, Beijing 100084, China
| | - Pengfei Hao
- Applied Mechanics Laboratory, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China
- School of Materials Science and Engineering, AVIC Aerodynamics Research Institute Joint Research Center for Advanced Materials and Anti-Icing, Tsinghua University, Beijing 100084, China
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Batool M, B. Albargi H, Ahmad A, Sarwar Z, Khaliq Z, Qadir MB, Arshad SN, Tahir R, Ali S, Jalalah M, Irfan M, Harraz FA. Nano-Silica Bubbled Structure Based Durable and Flexible Superhydrophobic Electrospun Nanofibrous Membrane for Extensive Functional Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:1146. [PMID: 37049240 PMCID: PMC10096561 DOI: 10.3390/nano13071146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 03/14/2023] [Accepted: 03/18/2023] [Indexed: 06/19/2023]
Abstract
Nanoscale surface roughness has conventionally been induced by using complicated approaches; however, the homogeneity of superhydrophobic surface and hazardous pollutants continue to have existing challenges that require a solution. As a prospective solution, a novel bubbled-structured silica nanoparticle (SiO2) decorated electrospun polyurethane (PU) nanofibrous membrane (SiO2@PU-NFs) was prepared through a synchronized electrospinning and electrospraying process. The SiO2@PU-NFs nanofibrous membrane exhibited a nanoscale hierarchical surface roughness, attributed to excellent superhydrophobicity. The SiO2@PU-NFs membrane had an optimized fiber diameter of 394 ± 105 nm and was fabricated with a 25 kV applied voltage, 18% PU concentration, 20 cm spinning distance, and 6% SiO2 nanoparticles. The resulting membrane exhibited a water contact angle of 155.23°. Moreover, the developed membrane attributed excellent mechanical properties (14.22 MPa tensile modulus, 134.5% elongation, and 57.12 kPa hydrostatic pressure). The composite nanofibrous membrane also offered good breathability characteristics (with an air permeability of 70.63 mm/s and a water vapor permeability of 4167 g/m2/day). In addition, the proposed composite nanofibrous membrane showed a significant water/oil separation efficiency of 99.98, 99.97, and 99.98% against the water/xylene, water/n-hexane, and water/toluene mixers. When exposed to severe mechanical stresses and chemicals, the composite nanofibrous membrane sustained its superhydrophobic quality (WCA greater than 155.23°) up to 50 abrasion, bending, and stretching cycles. Consequently, this composite structure could be a good alternative for various functional applications.
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Affiliation(s)
- Misbah Batool
- Department of Chemistry, University of Sargodha, Sargodha 40100, Pakistan;
| | - Hasan B. Albargi
- Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, Najran 11001, Saudi Arabia; (H.B.A.); (M.J.)
- Department of Physics, Faculty of Science and Arts, Najran University, Najran 11001, Saudi Arabia
| | - Adnan Ahmad
- Department of Textile Engineering, National Textile University, Faisalabad 37610, Pakistan; (Z.S.); (R.T.); (S.A.)
| | - Zahid Sarwar
- Department of Textile Engineering, National Textile University, Faisalabad 37610, Pakistan; (Z.S.); (R.T.); (S.A.)
| | - Zubair Khaliq
- Department of Materials, National Textile University, Faisalabad 37610, Pakistan;
| | - Muhammad Bilal Qadir
- Department of Textile Engineering, National Textile University, Faisalabad 37610, Pakistan; (Z.S.); (R.T.); (S.A.)
| | - Salman Noshear Arshad
- Department of Chemistry and Chemical Engineering, Lahore University of Management Sciences, Lahore 54792, Pakistan;
| | - Rizwan Tahir
- Department of Textile Engineering, National Textile University, Faisalabad 37610, Pakistan; (Z.S.); (R.T.); (S.A.)
| | - Sultan Ali
- Department of Textile Engineering, National Textile University, Faisalabad 37610, Pakistan; (Z.S.); (R.T.); (S.A.)
| | - Mohammed Jalalah
- Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, Najran 11001, Saudi Arabia; (H.B.A.); (M.J.)
- Electrical Engineering Department, College of Engineering, Najran University, Najran 61441, Saudi Arabia;
| | - Muhammad Irfan
- Electrical Engineering Department, College of Engineering, Najran University, Najran 61441, Saudi Arabia;
| | - Farid A. Harraz
- Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, Najran 11001, Saudi Arabia; (H.B.A.); (M.J.)
- Department of Chemistry, Faculty of Science and Arts at Sharurah, Najran University, Sharurah 68342, Saudi Arabia
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Williams AH, Roh S, Kotb Y, Velev OD. Superhydrophobic and Anti‐Icing Coatings Made of Hierarchically Nanofibrillated Polymer Colloids. Macromol Rapid Commun 2022; 43:e2200513. [DOI: 10.1002/marc.202200513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 08/05/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Austin H. Williams
- Department of Chemical and Biomolecular Engineering North Carolina State University Raleigh NC 27695 USA
| | - Sangchul Roh
- Department of Chemical and Biomolecular Engineering North Carolina State University Raleigh NC 27695 USA
| | - Yosra Kotb
- Department of Chemical and Biomolecular Engineering North Carolina State University Raleigh NC 27695 USA
| | - Orlin D. Velev
- Department of Chemical and Biomolecular Engineering North Carolina State University Raleigh NC 27695 USA
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Shi S, Zhang P, Chu X, Liu Y, Feng W, Zhou N, Shen J. Combination of Carbon Dots for the Design of Superhydrophobic Fluorescent Materials with Bioinspired Micro-Nano Multiscale Hierarchical Structure. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Shang J, Jiang Y, Wang W. Heat Stability and Icing Delay on Superhydrophobic Coatings in Facile One Step. Polymers (Basel) 2022; 14:polym14153124. [PMID: 35956639 PMCID: PMC9370788 DOI: 10.3390/polym14153124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 07/24/2022] [Accepted: 07/28/2022] [Indexed: 12/10/2022] Open
Abstract
Superhydrophobic coatings are limited to poor durability and a tedious preparation process. In this work, an efficient, eco-friendly, and cost-effective sol-gel method is developed for preparing superhydrophobic surfaces using an all-in-one suspension composed of methyltrimethoxysilane (MTMS), nano silicon dioxide (SiO2) particles, and micron zinc oxide (ZnO) particles. Superhydrophobic coatings with a contact angle (CA) up to 153.9° and a sliding angle (SA) of about 3.0° are prepared on Q235 steel substrates using MTMS 5 mL, 0.8 g of nano SiO2, and 0.2 g of micron ZnO. The morphology of the superhydrophobic coating is characterized by scanning electron microscopy (SEM), and the surface is covered with a micro- and nano-scaled hierarchical rough structure. A series of tests are conducted, including long-term stability tests and thermostability tests. The CAs are all above 150°, and the SAs are below 6.3°, indicating the excellent static stability of the prepared superhydrophobic coatings. Moreover, the CA of the superhydrophobic coating remains above 152° after 120 h of UV exposure, and the time for a water droplet to freeze on the surface of the superhydrophobic coating is 18 times of the bare Q235 steel, indicating that the superhydrophobic coating exhibits good resistance to UV radiation and icing-delay properties.
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Affiliation(s)
- Jingyu Shang
- College of Mechanical and Electrical Engineering, Hohai University, Changzhou 213000, China
- Correspondence: (J.S.); (Y.J.)
| | - Yongfeng Jiang
- College of Mechanical and Electrical Engineering, Hohai University, Changzhou 213000, China
- Jiangsu Province Wind Power Structural Research Center, Nanjing 211100, China
- Correspondence: (J.S.); (Y.J.)
| | - Wenhua Wang
- Quick Intelligent Equipment Co., Ltd., Changzhou 213000, China;
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