1
|
Li Y, Yang B, Wei J, Li B, Mao M, Zhang J. Attapulgite-Based Stable Superhydrophobic Coatings for Preventing Rain Attenuation of 5G Radomes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:7760-7768. [PMID: 38546182 DOI: 10.1021/acs.langmuir.4c00492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/10/2024]
Abstract
Superhydrophobic coatings hold immense promise for various applications. However, their practical use is currently hindered by issues such as poor stability, high costs, and complex preparation processes. Here, we present the preparation of cost-effective and stable superhydrophobic coatings through fluorination of natural attapulgite (F-ATP) nanorods and subsequent solvent-induced phase separation of a silicone-modified polyester adhesive (SMPA) with the F-ATP nanorods dispersed in it. Phase separation of the F-ATP/SMPA system forms a uniform suspension of microaggregates, which can be easily utilized for preparing superhydrophobic coatings via spray coating. The coatings have a low-surface-energy hierarchical micro/nanostructure due to phase separation of SMPA and adhesion of F-ATP to it. Moreover, the effects of the solvent composition (i.e., phase separation degree of SMPA) and the SMPA/F-ATP mass ratio on the morphology, superhydrophobicity, and stability of the coatings were investigated. After systematic optimization, the coatings exhibit excellent static and dynamic superhydrophobicity as well as high mechanical, chemical, thermal, and UV aging stability. Finally, the coatings were applied to the 5G radome surface and showed good rain attenuation prevention performance. Thus, we are confident that the superhydrophobic coatings have great application potential due to their advantages of outstanding performance, straightforward preparation procedures, cost-effectiveness, etc.
Collapse
Affiliation(s)
- Yan Li
- Department of Chemical Engineering, College of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, P. R. China
- Center of Eco-Material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P. R. China
| | - Baoping Yang
- Department of Chemical Engineering, College of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, P. R. China
| | - Jinfei Wei
- Department of Chemical Engineering, College of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, P. R. China
- Center of Eco-Material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P. R. China
| | - Bucheng Li
- Department of Chemical Engineering, College of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, P. R. China
- Center of Eco-Material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P. R. China
| | - Mingyuan Mao
- Department of Chemical Engineering, College of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, P. R. China
- Center of Eco-Material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P. R. China
| | - Junping Zhang
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
- Center of Eco-Material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P. R. China
| |
Collapse
|
2
|
Fabrication of hydrophobic and enhanced anticorrosion performance of epoxy coating through the synergy of functionalized graphene oxide and nano-silica binary fillers. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2023.131086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
|
3
|
Liu G, Xia H, Zhang W, Song L, Chen Q, Niu Y. Improvement mechanism of NO photocatalytic degradation performance of self-cleaning synergistic photocatalytic coating under high humidity. JOURNAL OF HAZARDOUS MATERIALS 2021; 418:126337. [PMID: 34126379 DOI: 10.1016/j.jhazmat.2021.126337] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 05/20/2021] [Accepted: 06/03/2021] [Indexed: 06/12/2023]
Abstract
Photocatalytic coating has been widely studied as a promising material to remove air pollutants. However, the effectiveness and long-term effect of photocatalysis in high relative humidity environment is still the main challenge in this field. In this study, a fluorinated WO3-TiO2 nanorods/SiO2 epoxy photocatalytic superamphiphobic coating (FTSE coating) was prepared using a simple spraying method. The micromorphology and chemical composition of FTSE coating was characterized by SEM, EDS, FT-IR, XPS and TGA techniques. The advanced contact angle and hysteresis angle test show that the FTSE coating had excellent superamphiphobicity. The mechanical abrasions, corrosion resistance and UV aging tests show that the FTSE coating exhibited reasonable durability. Besides, the NO degradation efficiency of hydrophilic and superamphiphobic coatings with contact angles of 20.19°, 87.74°, 162.93° and 164.47° was tested in different humidity environment. The results showed that the superamphiphobic coating exhibited more superior photocatalytic degradation efficiency (84.02%) than the hydrophilic coating (51.38%) at a high relative humidity (RH=98%). Finally, FTSE coating exhibited prominent photocatalytic stability and the synergistic effect of photocatalysis and self-cleaning. After 30 d outdoor weathering test, the NO degradation efficiency decreased by 13.07% and recovered to the original level after flushing. The improvement mechanism of NO degradation performance was proposed based on the characteristics of superamphiphobic surface.
Collapse
Affiliation(s)
- Guanyu Liu
- Engineering Research Center of Transportation Materials of Ministry of Education, School of Materials Science and Engineering, Chang'an University, Xi'an 710064, China
| | - Huiyun Xia
- Engineering Research Center of Transportation Materials of Ministry of Education, School of Materials Science and Engineering, Chang'an University, Xi'an 710064, China.
| | - Wenshuo Zhang
- Engineering Research Center of Transportation Materials of Ministry of Education, School of Materials Science and Engineering, Chang'an University, Xi'an 710064, China
| | - Lifang Song
- Engineering Research Center of Transportation Materials of Ministry of Education, School of Materials Science and Engineering, Chang'an University, Xi'an 710064, China
| | - Qiwei Chen
- Engineering Research Center of Transportation Materials of Ministry of Education, School of Materials Science and Engineering, Chang'an University, Xi'an 710064, China
| | - Yanhui Niu
- Engineering Research Center of Transportation Materials of Ministry of Education, School of Materials Science and Engineering, Chang'an University, Xi'an 710064, China.
| |
Collapse
|
4
|
Liu G, Xia H, Zhang W, Lang L, Geng H, Song L, Niu Y. Photocatalytic Superamphiphobic Coatings and the Effect of Surface Microstructures on Superamphiphobicity. ACS APPLIED MATERIALS & INTERFACES 2021; 13:12509-12520. [PMID: 33653025 DOI: 10.1021/acsami.0c22982] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In recent years, superamphiphobic coatings have been widely used in industrial transportation and environmental treatments because of their unique liquid repellency. In this study, WO3-TiO2 nanorods/SiO2 were used as the constructor of surface microstructures, and 1H,1H,2H,2H-perfluorodecyltriethoxysilane was used as the provider of low surface energy, and a photocatalytic superamphiphobic coating (FTS coating) was prepared. The microstructure and chemical composition of the coating was characterized by scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS), Fourier-transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), and thermogravimetric analysis (TGA). The coating exhibited excellent photocatalytic activity toward degradation methyl red and nitric oxide (NO), and the degradation efficiency to NO reached 47.8%. Also, the advanced contact angle and the hysteresis angle of water, glycol, glycerol, and olive oil was used to evaluate the superamphiphobicity. After 7 days of ultraviolet (UV) aging, five cycles of airbrush flushing and 48 h of immersion in acid, salt, and alkali solutions, the FTS coating still exhibits excellent amphiphobicity, which lays a foundation for its large-scale applications in the concrete exterior wall. The surface microstructure and the formation of air pockets are a prerequisite for superamphiphobicity, which promotes the liquid on the coating surface into the Cassie-Baxter state. Furthermore, the formation of air pockets is closely related to the gas adsorption capacity and the specific surface area (SBET) of the surface microstructure on the coating surface. The coatings with different SBET constructed and the advanced contact angle were measured. The influence of air pockets on the superamphiphobicity of coatings was studied in combination with the optical microscope. The understanding that SBET further influences superamphiphobicity by affecting the surface air pockets is proposed.
Collapse
Affiliation(s)
- Guanyu Liu
- Engineering Research Center of Transportation Materials of Ministry of Education, School of Materials Science and Engineering, Chang'an University, Xi'an 710064, China
| | - Huiyun Xia
- Engineering Research Center of Transportation Materials of Ministry of Education, School of Materials Science and Engineering, Chang'an University, Xi'an 710064, China
| | - Wenshuo Zhang
- Engineering Research Center of Transportation Materials of Ministry of Education, School of Materials Science and Engineering, Chang'an University, Xi'an 710064, China
| | - Lei Lang
- Engineering Research Center of Transportation Materials of Ministry of Education, School of Materials Science and Engineering, Chang'an University, Xi'an 710064, China
| | - Haipeng Geng
- Engineering Research Center of Transportation Materials of Ministry of Education, School of Materials Science and Engineering, Chang'an University, Xi'an 710064, China
| | - Lifang Song
- Engineering Research Center of Transportation Materials of Ministry of Education, School of Materials Science and Engineering, Chang'an University, Xi'an 710064, China
| | - Yanhui Niu
- Engineering Research Center of Transportation Materials of Ministry of Education, School of Materials Science and Engineering, Chang'an University, Xi'an 710064, China
| |
Collapse
|
5
|
Liu T, Kong F, Mao W, Kong Q, Kong F, Qian H. Heat‐resistant superamphiphobic robust surface by self‐assembled monolayer surface reaction. SURF INTERFACE ANAL 2021. [DOI: 10.1002/sia.6939] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Taolin Liu
- College of Materials Science and Engineering Nanjing Tech University Nanjing 210009 P. R. China
- School of Chemistry and Materials Science Nanjing University of Information Science & Technology Nanjing 210044 P. R. China
| | - Fanxin Kong
- School of Chemistry and Materials Science Nanjing University of Information Science & Technology Nanjing 210044 P. R. China
| | - Wentao Mao
- College of Materials Science and Engineering Nanjing Tech University Nanjing 210009 P. R. China
| | - Qinggang Kong
- School of Chemistry and Materials Science Nanjing University of Information Science & Technology Nanjing 210044 P. R. China
| | - Fanzhen Kong
- Nanjing No.1 Middle School Nanjing 210001 P. R. China
| | - Haiyan Qian
- College of Materials Science and Engineering Nanjing Tech University Nanjing 210009 P. R. China
| |
Collapse
|
6
|
Zhao X, Wei J, Li B, Li S, Tian N, Jing L, Zhang J. A self-healing superamphiphobic coating for efficient corrosion protection of magnesium alloy. J Colloid Interface Sci 2020; 575:140-149. [DOI: 10.1016/j.jcis.2020.04.097] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 04/01/2020] [Accepted: 04/23/2020] [Indexed: 11/26/2022]
|
7
|
Zhuang G, Jaber M, Rodrigues F, Rigaud B, Walter P, Zhang Z. A new durable pigment with hydrophobic surface based on natural nanotubes and indigo: Interactions and stability. J Colloid Interface Sci 2019; 552:204-217. [PMID: 31129294 DOI: 10.1016/j.jcis.2019.04.072] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 04/17/2019] [Accepted: 04/23/2019] [Indexed: 11/24/2022]
Abstract
Covering with polyorganosilane (POS) was proved as an effective way to enhance the chemical and thermal stability of clay/dye hybrid pigments. But the photostability and interactions with clay minerals, dyes and POS layer has never been reported. In order to investigate above issues, new organic-inorganic hybrid pigments based on halloysite (Hal) and indigo (In) were prepared by grinding method. X-ray diffraction, transmission electron microscopy, thermogravimetry, Fourier transform infrared spectroscopy were applied to characterize the structure of In-Hal (without POS layer) and In-Hal-POS (with POS layer) pigments. Solid state nuclear magnetic resonance (NMR) was employed to reveal the interactions between Hal, In and POS. Reflection spectra and CIE 1976 color space system were used to evaluate the color parameters and color changes of pigments. Thermal stability, chemical resistance to ethanol, 1 mol·L-1 HCl and 1 mol⋅L-1 NaOH, and light fastness to visible light were tested. Indigo molecules dispersed on the surface of Hal nanotubes. POS layer homogeneously covered on the surface of hybrid pigments, without changing the crystal structure and morphology of Hal. Covering with POS layer seldomly affect the color of hybrid pigments. However, In-Hal-POS exhibited better stability than In-Hal, due to hydrophobic surface which can prevent indigo molecules from chemical reactions and degradation. A new route was proposed to prepare organic-inorganic hybrid pigments, ignoring the interaction between dye molecules and substrates.
Collapse
Affiliation(s)
- Guanzheng Zhuang
- Sorbonne Université, Laboratoire d'Archéologie Moléculaire et Structurale (LAMS), CNRS UMR 8220, Case Courrier 225, UPMC 4 Pl. Jussieu, 75005 Paris Cedex 05, France; Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Xueyuan Road, Haidian District, Beijing 100083, PR China
| | - Maguy Jaber
- Sorbonne Université, Laboratoire d'Archéologie Moléculaire et Structurale (LAMS), CNRS UMR 8220, Case Courrier 225, UPMC 4 Pl. Jussieu, 75005 Paris Cedex 05, France.
| | - Francisco Rodrigues
- Sorbonne Université, Laboratoire d'Archéologie Moléculaire et Structurale (LAMS), CNRS UMR 8220, Case Courrier 225, UPMC 4 Pl. Jussieu, 75005 Paris Cedex 05, France; Chemistry Department of State University of Paraiba (UEPB), Center of Science and Technology (CCT), Av. Juvêncio Arruda, s/n - Universitário, Campina Grande 58109-790, Paraiba, Brazil
| | - Baptiste Rigaud
- Sorbonne Uniersité, CNRS Institut des Matériaux de Paris Centre (FR2482), 4 Place Jussieu, 75005 Paris, France
| | - Philippe Walter
- Sorbonne Université, Laboratoire d'Archéologie Moléculaire et Structurale (LAMS), CNRS UMR 8220, Case Courrier 225, UPMC 4 Pl. Jussieu, 75005 Paris Cedex 05, France
| | - Zepeng Zhang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Xueyuan Road, Haidian District, Beijing 100083, PR China
| |
Collapse
|