COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2022
·
IF 5.518
Zongting Zhu,Yi Tian,Yibin Liu,Kang Fu,Qianwen Chen,Baoliang Zhang,Hepeng Zhang,Qiuyu Zhang
Development of superhydrophobic coatings is restricted by –their poor durability and complicated preparation process. Herein, we prepared a simple and efficient protocol to synthesize a superhydrophobic coating with excellent mechanical properties and durability for large-scale application. Initially, the free radical polymerization of methyl methacrylate (MMA), glycidyl methacrylate (GMA) and heptadecafluorodecyl acrylate (HFA) were carried out to prepare polymer PGMH. PGMH was then mixed with poly(vinylidene) fluoride (PVDF) to finally form the PGMH-PVDF superhydrophobic coatings. During solvent vapor annealing, fluoroalkyl groups and PVDF clusters tended to migrate to solid-gas interface and enriched the coating surface. The self-assembly behavior of PVDF clusters was attributed to good compatibility of PVDF clusters with HFA segments in blending system. In addition, MMA and GMA segments in PGMH deposited at the bottom to provide mechanical strength and substrates adhesion. Besides, the prepared superhydrophobic coatings demonstrated outstanding abrasion resistance for up to 100 sandpaper abrasion. In addition, the superhydrophobic coatings also exhibited exceptional chemical stability and self-cleaning property. The static anti-icing characterizations confirmed that the PGMH-PVDF films possessed good icing-delaying ability. Therefore, the superhydrophobic coatings would have tremendous potential applications in the field of waterproof, self-cleaning, and anti-icing surfaces.
研究领域:
材料科学
·
表面工程
✓ 已验证
DOI
高影响因子
RSC Advances
·
2022
·Vol. 12
·期 52
·33626-33633
·
IF 4.036
Xiaoru Hao,Jun Xie,Yu Zhang,Zhihao Cheng,Wei Sheng
Among different types of anti-icing coatings, superhydrophobic surfaces have attracted extensive attention due to their excellent water repellency and low thermal conductivity. We report facile spraying time tuning to optimize the superhydrophobic (SHP) surface coating fabrication by a one-step spraying method of mixing SiO2 nanoparticles with epoxy resin (EP), polyamide resin (PAI), and HFTMS. The wettability performance was optimized by adjusting spraying time from 0 s to 25 s to control surface morphology by adjusting surface morphology and line roughness. With spraying time of 20 s, SiO2 molecular clusters on the superhydrophobic surface showed a maximum water contact angle (WCA) of 160.4° ± 1.3° and a sliding angle (SA) of 4.1° ± 1.0°. What's more, the effect of the coatings' icing behavior were studied by icing heat conduction; SHP-20 delayed the icing time for 410 s at −15 °C, and the icing performance of SHP-20 also declined with the decrease of temperature to −9 °C, −12 °C, −15 °C, and −18 °C. The WCA of SHP-20 can remain above 140.9° ± 1.8° after 40 abrasive 1000# sandpaper wear cycles. The results also provide a basis for the preparation of SHP and anti-icing characteristics.
研究领域:
材料科学
·
表面工程
✓ 已验证
DOI
高影响因子
JOURNAL OF POLYMER ENGINEERING
·
2023
·Vol. 43
·期 3
·277-286
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IF 2
Xiaoru Hao,Jun Xie,Yu Zhang,Wei Sheng,Haikun Zheng
This paper investigated anti-icing behavior and wettability of droplets on superhydrophobic polymercoatings between lotus effect and petal effect, which were prepared on surfaces of 2021 aluminum alloy with 1H, 1H, 2H, 2H-heptafluorodecyl (FAS-17). The prepared surfaces displayed excellent hydrophobicity with contact angles of 154.9° ± 1.5°and 139.8° ± 1.3°, while rolling angles are 4° ± 1.0° (lotus effect) and 30° ± 1.5° (petal effect). Thus, the present study focused on the different characterizations and the anti-icing potential of the superhydrophobic polymersurfaces were analyzed based on three parameters including the icing delay time, the crystallization temperature of water droplets, and contact time of impinging droplets on the cold superhydrophobic polymer coatings (−15 °C). Furthermore, the anti-icing of superhydrophobic coatings between lotus effect and petal effect with freezing time and crystallization temperature experimental phenomena were consistent with the thermodynamic analysis. It is also proved that the droplets have different bounce behavior on different polymercoating surfaces by droplet impact experiment. The study offers a comprehensive perspective on polymercoatings of different wetttablility for anti-icing behavior applications.
研究领域:
材料科学
·
表面工程
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Wancheng Gu,Yage Xia,Weilin Deng,Wei Wang,Yanzheng Ji,Xinquan Yu,Zuankai Wang,Youfa Zhang
Icephobic surfaces (e.g., superhydrophobic surfaces and slippery surfaces) have significant economic, energy and safety implications by offering prevention and easy removal of ice in many critical applications. So far, the durability of these surfaces remains to be a major concern, preventing their adoption in practice. Here, we design a low-surface-energy framework of bridging rigid nanoparticles that can be covalently bonded together controllably, leading to the densification of the coatings and removal of the pores. The obtained compact and superhydrophobic coatings couple high mechanical strength and flexibility, endowing them to maintain superhydrophobicity and slippery properties despite being exposed to harsh abrasion of the surface. Under the binary cooperative strategy of superhydrophobic and slippery properties, our framework coatings are ultra-durable for icephobicity. Importantly, the versatile and scalable design of the framework coatings presented here provides a generic paradigm for coupling high mechanical strength and flexibility in one coating.
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
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Jiaobing Chen,Zhiguang Guo
With the growing demand for energy and the development of pipeline transport, it is crucial to reduce drag in transport to improve transport efficiency and reduce energy consumption. In this study, a superhydrophobic coating based on stainless steel mesh (SSM) was prepared by using a simple spraying method. The surface morphology of the samples was characterized by Field emission scanning electron microscope (FESEM) and atomic force microscopy (AFM), and the samples were chemically analyzed by Fourier Transform Infrared Spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS) and X-ray diffraction analysis (XRD). Epoxy resin was introduced as a binder to strengthen the bond between the coating and the substrate. This coating provided a combination of drag reduction and anti-icing, achieving an impressive drag reduction rate of up to 94%. At the same time, due to its excellent superhydrophobicity, the coating slowed down the formation and growth of ice crystals, and the freezing time was about 12 times longer than that of the original SSM. What’s more, the coating also exhibited excellent mechanical and chemical stability, making it promising for practical drag reduction and anti-icing applications. We hope to provide some ideas for the field of fluid transport.
研究领域:
材料科学
·
流体运输
·
表面工程
✓ 已验证
产品关联
DOI
高影响因子
LANGMUIR
·
2024
·
IF 3.7
Weiming Lin,Haonan Song,Huimin Qi,Xingshi Gu,Ding Zhang,Jiaxin Yu,Yafeng Zhang,Gai Zhao
Icing causes many problems in daily life and with equipment stability, and many efforts have been made to remove surface icing. Herein, a novel organic gel-infused porous material is developed to achieve excellent de-icing performance. Porous polydimethylsiloxane (P-PDMS) composites with different pore sizes were prepared by a template method. The two-phase skeletons and/or gel material was obtained by infusing PDMS gel into P-PDMS (GIP-PDMS). The ice adhesion strength of GIP-PDMS under static and dynamic icing conditions was comparatively investigated. The results show that GIP-PDMS displayed excellent anti-icing performance, and the delay freezing time of GIP-PDMS1 was ∼4554 s at −5 °C. The ice adhesion strength of GIP-PDMS was much lower than that of P-PDMS, owing to the distinct modulus between the two-phase skeletons and/or gel. The simulation results indicated that the stress concentration promoted ice fracture and contributed to weak ice adhesion. Molecular dynamics further showed that the state of the molecular chains and the interfacial interaction between ice and PDMS gel at 268 K helped to decrease the shear force.
研究领域:
材料科学
·
表面工程
✓ 已验证
DOI
PubMed
高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2024
·Vol. 35
·期 4
·e6393
·
IF 3.1
Yang Xiong,Zihong Zhang,Ying Liu,Min Ye,Chengyao Hu,Jun Chen,Yawen Huang
It is still a big challenge to prepare superhydrophobic anti-icing coatings with long freeze delay performance and high durability. In this work, in different with conventional flexible porous coating, we prepared an asymmetric coating with hierarchical pocket structure by a facile hot-pressing/salt-leaching (BHS) method on a polyacrylate vitrimer polymer with mellability. The asymmetric architecture endowed porous coating with low density and high adhesion strength. The in-situ growth of silica nanoparticles in above porous coating and surface modification generated a superhydrophobic hierarchical pocket structure. As a result, the freezing delay time was drastically increased to 14,400 s at −10°C. Furthermore, owing to hierarchical pocket structure, the coating could maintain its superhydrophobicity and anti-icing performance under water flow impacting at 10 kPa pressure, 30 cycles of sandpaper abrasion, 50 cycles of tape peeling, showing advantageous high durability. By employing the hierarchical porous coating on heat exchangers, the energy consumption was drastically reduced by 93%.
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
Coatings
·
2024
·Vol. 14
·期 6
·699
·
IF 2.9
Haopeng Wang,Jihu Wang,Shaoguo Wen,Sihong Jiang,Jia Song,Shengnan Ding,Hui Wu
To enhance protection against corrosion and ice on iron metal material in frigid zones, an organic silicone resin coating was prepared using four monomers. Its structure and performance was analyzed via infrared spectroscopy (FTIR), nuclear magnetic resonance (NMR), gel permeation chromatography (GPC), and thermal analysis (TG). Corrosion resistance of coating was tested by saltwater resistance and salt spray resistance and assessed using an electrochemical workstation, alongside anti-icing tests. The results showed that the organic silicone resin was successfully synthesized. The coatings could delay freezing onset by one-third compared to controls in low temperatures, with a detachment time also reduced by one-third, indicating excellent corrosion and ice resistance. The methylphenyl silicone resin had good anti-corrosion and anti-ice properties, with a low corrosion current density (icorr) of 0.8793 μA/cm2and a high charge transfer resistance (Rct) of 24,930 Ω·cm2in saline.
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
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
·
2021
·
IF 2.262
Kangnan Fan,Zhuji Jin,Xianglong Zhu,Qiulin Wang,Jing Sun
Iron materials are widely applied in electrical-tower. However, the freezing rain adhering to the electric-tower in winter can raise a huge potential safety hazard to the power facilities. Therefore, how to make ironworks possess anti-icing property has become a difficult problem. In order to resolve the aforementioned issue, a facile, low-cost and environment-friendly electrochemical machining method was developed to fabricate superhydrophobic surface on iron materials to endow anti-icing capacity in the freezing rain. After fluoroalkylsilane (FAS) modification, superhydrophobic surface could be obtained. The morphology of the surface film was examined using scanning electron microscopy (SEM) equipped with an energy-dispersive spectroscopy (EDS) and laser confocal microscope. The chemical composition was investigated by X-ray photoelectron spectroscopy (XPS). The influence of the applied processing time on wettability was also studied. The results showed that a rough surface, which consisted of many step-like structures, was formed on the surface of iron by the proposed electrochemical method. After FAS modification, the surface showed good superhydrophobicity with the water contact angle of 162° and water sliding angle of 3.33°. The mechanism of the generated rough structures was also discussed. Moreover, the static and dynamic anti-icing tests were conducted. The results showed that the superhydrophobic surface can not only significantly delay the freezing time, but also prevent the cold water from freezing on the iron surface, which could be a good solution to the freezing rain issue.
研究领域:
材料科学
·
表面工程
✓ 已验证
DOI
高影响因子
Advanced Materials Interfaces
·
2025
·
IF 4.4
Tao Zhu,Yuan Yuan,Xingde Wei,Xujiang Hua,Xu Dai,Huiying Xiang,Linbo Song,Ruijin Liao
Ice accretion on wind turbine blades severely impacts the power generation efficiency, equipment lifespan, and safe operation of wind farms. Low-interfacial toughness materials have demonstrated potential for large-scale deicing under controlled laboratory conditions. However, their anti-icing and deicing performance in complex and harsh natural fields is rarely studied. Herein, low-interfacial toughness PDMS/SiO 2 coatings are prepared on aluminum plates. Field tests for anti-icing, icephobic, and large-scale deicing are conducted in the high-altitude regions of Southwest China. Fortunately, the PDMS/SiO 2 coating exhibits exceptional anti-icing and icephobic properties. The coating effectively delays the freezing of water droplets and natural ice accretion, significantly reducing icing weight and ice adhesion strength. During natural ice-covering processes, the ultra-low ice adhesion of the PDMS/SiO 2 coating aids in efficient ice shedding through wind and gravity and ensures rapid melting post-icing. Additionally, the PDMS/SiO 2 coating excels in large-scale deicing performance. The constant deicing force, governed by low interfacial toughness, provides robust assurance for efficient large-scale deicing of ice layers of varying sizes under gravity. Moreover, the coating demonstrates stable durability, retaining excellent deicing capabilities during icing/deicing cycles, UV radiation, and high-temperature aging tests. This study lays an experimental foundation for the further research and application of low-interfacial toughness materials.
研究领域:
材料科学
·
可再生能源工程
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Jin-Le Li,Fang Wang,Chun-Bo Li,Ren-Yi Sun,Mei-Lin Guo,Gang Wu,Fei Song,Yu-Zhong Wang
Essential requirements of protective clothing with multi-scenario practicability deserve intensive attention. Aramid fabric is widely used to protect industrial and outdoor workers operating under various hazardous conditions but is susceptible to fouling, subzero cold water and icing, resulting in severely deteriorated protective properties. However, the chemical inertness of aramid fabrics limits their further functionalization. This issue is addressed herein by developing a novel top-down strategy to construct an intrinsic densely packed acicular nanostructure on the surface of aramid fiber through the proton donor-assisted deprotonation-induced roughening (PAIR) method. The PAIR treatment consists of extracting hydrogen protons from the amide moiety and controllably dissociating the outer shell of the aramid fibers without destroying its hard-core structure. Such a “rough-surface-on-intact-core” texture endows the fabric with greatly enhanced water repellency, anti-icing and anti-fouling properties without sacrificing its impressive mechanical properties, moisture permeability and flame retardancy. Remarkably, the treated fabric can load 37 times its own weight in water, presenting an increased buoyancy and demonstrates an icing delay time of 1920 s, which is 1150 % that of a pristine aramid fabric. Featuring the easy processability, high endurance and multiple functions, the fabric is promising for applications in personal protective equipment and advanced functional textiles with multiple tasks under harsh weather events.
研究领域:
材料科学
·
纺织工程
✓ 已验证
产品关联
DOI
高影响因子
LANGMUIR
·
2023
·
IF 3.9
Shuwei Lv,Xiaodong Yang,Qiao Liu,Chunyu Mao,Xianli Liu,Ying Zhai,Zhuojuan Yang
Slippery surfaces with outstanding slippery performances have shown application prospects in various fields, including anti-icing, antifouling, droplet transportation, and fog collection. However, practical application of the existing slippery surfaces is limited by lubricating oil loss, low water-slippery ability, low surface robustness, complex processes, and high costs. To overcome these limitations, we propose a facile, low-cost method to create a solid-like slippery Al surface (SSS-Al) by mixing hydrophobic nano-ceramic coating, silicone oil, and nano-SiO2, which shows excellent comprehensive performance. The SSS-Al shows exceptional water-slippery ability with a sliding angle of 5° and antifouling ability. Durability and chemical stability tests confirm the high surface durability and chemical stability of SSS-Al. Furthermore, SSS-Al exhibits anti-icing performance, fog collection ability, and electrochemical corrosion resistance, as well as demonstrates remarkable application prospects in important fields such as aerospace and shipbuilding.
研究领域:
材料科学
·
表面工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）