Coatings
·
2023
·Vol. 13
·期 3
·569
·
IF 3.4
Lei Fan,Bo Li,Yan Wang,Jinhang He,Jie Bai,Tao Zhu,Yuan Yuan
The icing of glass insulators is likely to cause faults such as insulator flashover, which poses a serious threat to the power system. Traditional deicing techniques have the disadvantage of being costly and inefficient. Herein, polytetrafluoroethylenes (PTFEs) as nanoparticles and epoxy and fluorosilicone resins as binders were blended to construct an anti-icing coating. The superhydrophobic (SHP) epoxy/fluorosilicone/PTFE coatings for anti-icing were successfully prepared on glass slides through one-step spraying. The effect of PTFE mass fraction on the microstructure, on the wettability and on the anti-icing properties of the coatings was investigated. The results showed that the coatings with different PTFE mass fractions had different microstructures. When the PTFE mass fraction was 47.2%, the SHP coating exhibited a uniform rough structure with an apparent contact angle as high as 164.7° and a sliding angle as low as 3.2°. Moreover, the water droplets can bounce back five times with a contact time of only 9.5 ms and a rebound height of 4.58 mm. In the low-temperature environment (−10 °C), the SHP coating displayed good anti-frosting, anti-icing and icephobic properties. The delayed frosting time (1499 s) and delayed freezing time (1295.3 s) of the SHP coating were three and five times longer than those of the glass, respectively. The SHP coating presented an ice-adhesion strength (39.8 kPa) that was six times lower than that of glass. The prepared SHP coating demonstrated potential applications for the anti-icing of glass insulators.Keywords:superhydrophobic;PTFE;spraying;anti-icing
研究领域:
材料科学
·
表面工程
✓ 已验证
产品关联
DOI
高影响因子
Scientific Reports
·
2024
·Vol. 14
·期 1
·1-12
·
IF 3.8
Dong Chaoyang
To improve anti-icing traits of outdoor coatings, a synergy between photothermal and hydrophobic anti-icings was utilized to fabricate copolymer/Ti 3 C 2 T x MXene composite coatings with good transparency and adhesion. MXene contributes to photothermal trait from local surface plasmon resonance effect. Copolymer enables hydrophobicity from perfluoroalkyls-induced low surface energy and high surface roughness. An increase in MXene dose results in an increased surface roughness. With 140.0 ± 2.2° of water contact angle and 70% of light transmittance, the optimal film bears 2 wt% of MXene. High MXene dose results in large temperature-increase of film under sunlight. After 15 min of sunlight exposure, the temperature of optimal film surface in icing simulation increases from − 18 ℃ to 7.2 ℃. After 48 h of acid immersion, the temperature-increase of optimal film surface based on 300 s of sunlight irradiation reaches 28.7 ± 1.2 ℃. After 48 h of ultraviolet irradiation, the temperature-increase of optimal film surface is 30.7 ± 0.8 ℃. This surface has a water contact angle of 132.7 ± 1.1° after 48 h of acid immersion. This study gives impetus to a preparation of various composite coatings for outdoor anti-icing/deicing.
研究领域:
材料科学
·
表面工程
·
能源材料
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ADVANCED ENGINEERING MATERIALS
·
2021
·Vol. 23
·期 10
·2100347
·
IF 3.862
Jialu Zhang,Hao Xu,Jie Guo,Yingying Zhang,Tianchi Chen
The aerospace industry has extremely strict requirements for metal materials, especially the stability of the material at a low temperature and in harsh environment. Herein, superhydrophobic anti-icing aluminum sheets are fabricated with traditional hydrothermal reaction and modified by (heptadecafluoro-1,1,2,2-tetradecyl) triethoxysilane (AC-FAS). Field-Emission Scanning Electron Microscope (SEM), Fourier transform infrared spectroscopy (FTIR), and X-ray photoelectron spectroscopy (XPS) are used to analyze the surface morphology and chemical compositions. The satisfactory properties of superhydrophobicity and anti-icing result from its dense microcosmic array structure and its low surface energy. The prepared superhydrophobic aluminum surface can realize wettability alteration, in which the contact angle increases from 118° on the original aluminum sheets to 155° with a rolling angle of 10°. In addition, the prepared superhydrophobic surface has anti-icing and self-cleaning ability. According to the aforementioned results, it is believed that the superhydrophobic aluminum sheets can be an excellent candidate in the aerospace field.
研究领域:
材料科学
·
表面工程
✓ 已验证
DOI
高影响因子
Coatings
·
2020
·Vol. 10
·期 11
·1025
·
IF 2.436
Yuan Yuan,Liang Wang,Guoyong Liu,Ruijin Liao
Slippery liquid infused porous surfaces (SLIPS) have been considered to be potential and effective method for anti-icing. Much work needed to be done for the application in field. In this study, SLIPS were successfully fabricated on 7075-T651 aluminum alloy by anodizing in phosphoric acid solution with three different voltage parameters and coating lubricant. Then the most suitable anodization parameters of samples were selected through the anti-icing performance tests. The best as-prepared surface exhibited ultralow ice-adhesion strength, which reduced from 261 to 6 kPa. Meanwhile, the freezing time of water-drop on aluminum alloy surfaces have been dramatically delayed at −5 and −10 °C (humidity of 75% ± 5%), respectively. Moreover, the durability of the SLIPS have also been investigated. Cycles of icing/deicing, mechanical damage, thermal and UV exposure were used to investigate the durability of SLIPS, and SLIPS could still show low ice-adhesion strength.Keywords:ice-adhesion;anti-icing;aluminum alloy;anodization;durability
研究领域:
材料科学
·
表面工程
✓ 已验证
产品关联
DOI
高影响因子
Materials Today Communications
·
2025
·
IF 4.5
Zijin Cheng,Chuang Liu,Ruoyu Sun,Yixian Hu,Jing Zhao,Jiliang Mo
Drawing inspiration from the way natural organisms regulate surface wettability for specific functions, this study introduces a method combining chemical etching and low-surface-energy modification to rapidly fabricate superhydrophobic stainless-steel surfaces under high-temperature conditions. The impact of etching time on surface roughness and wettability was systematically investigated. The results indicate that by adjusting the etching time, the surface roughness can be precisely controlled, creating a multi-scale micro-nanostructure essential for superhydrophobicity. When the reaction time is 1.5 h, the superhydrophobic stainless-steel surface achieves a contact angle of 156.2° and a sliding angle of just 1.5°, exhibiting excellent superhydrophobic properties. Further tests demonstrate that the superhydrophobic surface excels in mechanical stability, thermal stability, corrosion resistance, anti-icing and self-cleaning properties. Additionally, a hydrophilic-superhydrophobic stainless-steel hybrid surface was fabricated using machining, and when combined with a diversion channel, it significantly enhances water collection performance, facilitating the rapid collection and removal of water droplets. These findings provide valuable theoretical insights and practical guidance for the development and application of superhydrophobic stainless-steel materials in industrial fields such as anti-fouling, anti-icing and water collection.
研究领域:
材料科学
·
表面工程
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Nano Materials
·
2024
·
IF 5.3
Tingting Yang,Qingqing Lu,Fangyuan Ren,Shengkang Xin,Hailong Zhang,Hong Qiao,Zuankai Wang,Libin Liu
The icing phenomenon in nature can cause serious economic losses and security concerns. Eco-friendly anti-icing and deicing surfaces have been developed to address these issues. In this study, a photothermal superhydrophobic coating was fabricated by a facile polymerization process in the presence of micro–nano structured SiO2/TiN particles followed by a two-step spraying technology. The optimal coating displays remarkable superhydrophobic performance with a water contact angle of 159.1° and a water roll-off angle as low as 1.2°; it survives tape peeling, Taber abrasion, and solution immersion and demonstrates weather and corrosion resistance. More importantly, the SiO2/TiN coating shows excellent anti-icing/deicing property and can withstand multiple icing/thawing cycles. The excellent anti-icing/deicing performance is attributed to the robust superhydrophobic surface and the photothermal effect of TiN nanoparticles. Our fluorine-free design strategy provides important guidance for actual large-scale eco-friendly anti-icing/deicing application.
研究领域:
材料科学
·
表面工程
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2021
·
IF 9.229
Bo Yu,Zhengrong Sun,Yubo Liu,Zhizhi Zhang,Yang Wu,Feng Zhou
The accumulation of ice in winter has brought many problems in industrial production and everyday life, and how to prevent icing or remove ice rapidly has aroused great attention from researchers in recent years. In this work, we demonstrated a strategy of using a superhydrophobic photothermal and thermal isolation macroporous xerogel (PMX) to delay icing and remove ice efficiently under faint sunlight irradiation. An oriented macroporous xerogel was prepared by an ice templating method, and multi-walled carbon nanotubes acting as the photothermal genesis component under sunlight irradiation were introduced into the xerogel. After fluorination, the PMX presented a robust water repellency and delayed icing. More importantly, numerous macropores in the PMX matrix acted as the thermal barrier that can restrict heat transmission to surroundings at maximum, which guarantees efficient anti-icing and de-icing in low temperature. Water on the PMX surface can never freeze at −30 °C under 0.25 kW/m2 (“0.25 sun”) sunlight irradiation. The outdoor experiment also has confirmed the availability of PMX in a natural winter environment. The PMX integrated with thermogenesis and thermo-isolation functions provides a new route for highly efficient anti-icing and de-icing.
研究领域:
材料科学
·
能源科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
APPLIED SURFACE SCIENCE
·
2022
·
IF 7.392
Yong Li,Hao Li,Jun Wu,Xinyue Yang,Xiaohua Jia,Jin Yang,Dan Shao,Lei Feng,Sizhe Wang,Haojie Song
Solar energy-facilitated materials are promising to solve energy loss problems for anti-icing/deicing applications by conversion clean solar energy to thermal energy. However, the photothermal conversion performance seriously affect by dirt and liquid contaminants. Moreover, melted ice may wet photothermal materials and freeze again. Herein, durable superhydrophobic photothermal coatings were designed by modifying carbon nanotubes with dodecylamine (DDA) and dopamine via Michael addition reaction. Thanks to the photothermal synergistic effect of PDA and CNTs, the surface temperature of obtain coating rapidly rose to 89.8 °C under 1 kW/m 2 . Besides, hierarchical structure and low surface energy alkyl long chain of the coating provided excellent self-cleaning property (CA = 162.5 ± 0.9°), which can avoid the adhesion of contaminants and extend the freezing time of ice for anti-icing. Furthermore, the ice quickly melted and rolled off immediately after irradiation, which avoids refreezing again. Thus, the prepared coating maintained sustainable photothermal conversion for effective deicing performance. Besides, the prepared coating possessed mechanical durability, excellent corrosion protection and even kept self-cleaning ability at 400 °C. More importantly, the coating shows excellent self-healing property toward both mechanical and chemical damage. The outstanding environmental adaptability can greatly extend its lifespan and meet the long-term service conditions.
研究领域:
材料科学
·
能源工程
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2025
·
IF 19
Jian Xu,Zheng Dai,Rongrong Chen,Zhongyi Wang,Qi Liu,Jingyuan Liu,Jing Yu,Jiahui Zhu,Jun Wang
Surface icing and corrosion considerably reduce the operational safety of offshore wind turbines and can be mitigated through the use of lubricant-infused surfaces, which, however, often suffer from severe performance degradation under real-world conditions and lack long-term durability. Herein, this work prepares polyurea coatings based on a dynamic crosslinked phase-locked network and show that the alternating arrangement of strong and weak hydrogen bonds between the urea units facilitates the capture and storage of the liquid phase (silicone oil), while the affinity and associative interactions between this phase and polydimethylsiloxane segments ensure strong adhesion and integration. The best-performing coating exhibits good dynamic/static anti-icing properties (freezing delay time = 331 s, temperature of first ice nucleatio n = −24.6 °C, ice shear strength = 19.9 ± 3.3 kPa) according to the results of ice crystal growth simulations and wind tunnel tests while showing an exceptional anti-corrosion performance (low-frequency modulus (|Z| 0.01 Hz ) = 4.22 × 10 10 Ω·cm 2 ) and durability. Thus, this study presents a strategy for enhancing the ability of offshore wind turbines to withstand extreme environments and extending their service lifetimes.
研究领域:
材料科学
·
表面工程
·
可再生能源
✓ 已验证
产品关联
DOI
高影响因子
MATERIALS LETTERS
·
2018
·
IF 2.687
Yang Wenxuan,Yuan Yuan,Liu Guoyong,Zhang Bing,Yang Rongkai
Icing on aluminum conductors might cause failure of transmission lines. Much work has been done to study the issue. In this study, superhydrophobic surface with hydrangea-like micro/nano structure on aluminum was successfully prepared by ultrasonic chemical etching in combination with boiling. The wettability of the as-prepared surface was analyzed, the contact angle of the surface was 161.37° as well as the sliding angle was less than 1°. The as-prepared surface could greatly prolong the time of icing and frosting even in low temperature, for the structure induced lots of micro/nano air bags. They could certainly reduce the heat transferring between the solid surface and water. Moreover, the as-prepared surface demonstrated good stability under the continuous corrosion of simulated acid rain, remained superhydrophobicity after 7-days corrosion.
研究领域:
材料科学
·
表面工程
✓ 已验证
DOI
高影响因子
Coatings
·
2019
·Vol. 9
·期 12
·771
·
IF 2.33
Qiang Xie,Tianhui Hao,Jifeng Zhang,Chao Wang,Rongkui Zhang,Hui Qi
Coatings with anti-icing performance possess hydrophobicity and low ice adhesion strength, which delay ice formation and make ice removal easier. In this paper, the anti-icing performance of nano/microsilica particle-filled amino-terminated PDMS (A-PDMS)-modified epoxy coatings was investigated. In the process, the influence of the addition of A-PDMS on the hydrophobicity and ice adhesion strength was investigated. Furthermore, the influences of various weight ratios of nanosilica/microsilica (Rn/m) on the hydrophobicity and ice adhesion strength of the coating were investigated. Hydrophobicity was evaluated by contact angle (CA) and contact angle hysteresis (CAH) tests. Ice adhesion strength was measured by a centrifugal adhesion test. The addition of A-PDMS markedly increased hydrophobicity and decreased ice adhesion. The size combination of particles obviously affects hydrophobicity but has little effect on ice adhesion. Finally, X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM) were used to reveal the anti-icing mechanism of the coatings.Keywords:wettability;superhydrophobicity;anti-icing;icephobicity;epoxy;silica
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2024
·
IF 4.9
Siwen Kuai,Jian Tang,Longpeng Zhou,Yunqiang Li,Nana Chen,Xiao Xue,Hongtao Liu
In recent years, slippery liquid-infused porous surfaces (SLIPSs) have emerged as a potential alternative to superhydrophobic surfaces (SHSs) due to their exceptional anti-icing properties. However, the current challenge lies in the significant lubricant consumption of SLIPSs, which poses a major obstacle to coating durability. In this study, we developed a durable anti-icing coating with stability (DASS), which combines SHSs and SLIPSs. By incorporating high adsorption particles and low cross-linking density rubber into the oil storage layer, the coating achieves an increased oil storage capacity while effectively inhibiting lubricant loss. Additionally, a superhydrophobic layer is introduced on the surface to ensure surface lubrication and prevent lubricant depletion. The three-layer structure enables the coating to maintain a low τ ice (<20kPa) during 30 icing/deicing cycles, showcasing superior de-icing durability compared to conventional anti-icing coatings. Interestingly, the original anti-icing properties of the coating can be restored through external oil replenishment. Furthermore, this coating exhibits excellent resistance against fouling, mechanical stress, chemical exposure, temperature variations, and weathering effects, making it highly suitable for practical applications in anti-icing coatings.
研究领域:
材料科学
·
表面工程
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）