CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Jiawei Jiang,Yizhou Shen,Zhen Wang,Jie Tao,Weilan Liu,Haifeng Chen,Senyun Liu,Xinyu Xie,Chaojiao Zeng
The superhydrophobic surfaces with different polarity regulated by hydrocarbon radical length were fabricated by a facile one-step electrodeposition method in order to survey the effect of surface polarity on anti/de-icing performance. The as-prepared superhydrophobic surface, electrodeposited in the solution composed of Ce(NO 3 ) 3 6H 2 O and stearic acid, displayed higher superhydrophobicity with a contact angle reaching 173.02 ± 1.02° and a rolling angle being only 1.5°. The ideal non-wettability was mainly attributed to the formed micro-nanostructures during the one-step electrodeposition process and the lower-polarity of [CH 3 (CH 2 ) 16 COO] 3 Ce with the extension of –CH 2 length. Furthermore, lower-polarity surface could induce smaller water-adhesion dissipation energy, resulting in the obvious reduction in the contact time (11.8 ms) of an impact droplet. In terms of the anti-icing performance, the icing delay time could reach 612.68 s at −15 ℃, and still had a higher value of 39.12 s even at −40 ℃, which could be also reflected by the statistical data of freezing temperature (-20.27 ℃). An ultra-low ice adhesion of 5.72 kPa was achieved on lower-polarity surface, meanwhile, the surface anti/de-icing cycle durability could be improved by 32% owing to the addition of an oxide layer. Understanding the influencing mechanism of surface polarity on anti/de-icing performance could provide theoretical guidance for the development of passive anti/de-icing technologies in aviation industry field.
研究领域:
材料科学
·
航空工程
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Engineering Materials
·
2023
·
IF 0
Cheng Ke,Jianxi Liu,Yubo Liu,Zhihuan Li,Tao Du,Yang Wu,Haibao Hu,Feng Zhou,Weimin Liu
Superhydrophobic surfaces with outstanding liquid-repellent properties have potential applications in anti-icing, self-cleaning, and corrosion protection, which rely on a stable gas–liquid interface and low surface energy for passive protection. However, there are still challenges in overcoming physical damage of the superhydrophobic surface and integrating self-healing and active deicing properties to boost their practical application. Here, we report a photothermal MOF-based superhydrophobic coating with synergistic protective functions of passive liquid-repellent properties (for self-cleaning, anti-icing, and anticorrosion) and active photothermal responsiveness (for deicing and photothermal self-healing). The multifunctional coating was prepared by the spray-coating method, in which fluoridated photothermal ferrocene-MOF nanosheets and SiO2 nanoparticles were applied in epoxy resin to develop their versatility. Passive liquid-repellent properties of the superhydrophobic surface caused high-efficiency removal of solid and liquid contaminants, freezing delay of droplets, and corrosion resistance. Moreover, rapid active deicing performance was achieved without damaging the textural structure of the coating. Importantly, the superhydrophobicity of the surface was maintained after mechanical abrasion. Also, the liquid-repellent properties of the plasma-etched coating recovered rapidly with light illumination due to the photothermal-induced migration of fluorosilane chains. Therefore, the synergy of passive liquid-repellent properties and active photothermal responsiveness provides a strategy for the design of multifunctional coating.
研究领域:
材料科学
·
表面工程
·
纳米技术
·
腐蚀防护
✓ 已验证
DOI
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
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可再生能源工程
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Research and Technology-JMR&T
·
2024
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IF 6.2
Tao Zhu,Yuan Yuan,Linbo Song,Xingde Wei,Huiying Xiang,Xu Dai,Xujiang Hua,Ruijin Liao
The icing of wind turbine blades leads to a decrease in output power, seriously jeopardizing the economic benefits and operational reliability of wind farms. Conventional deicing techniques require expensive equipment and consume a large amount of energy. Low-interfacial toughness coatings without energy dissipation are believed to be a highly potential passive deicing technology. However, the durability in service is facing challenges. Herein, low-interfacial toughness PDMS coatings were prepared by physical blending. Through the optimization of added plasticizers and SiO 2 , PDMS coatings with excellent large-scale deicing performance were obtained. The constant deicing force and ice adhesion strength were reduced to 14.69 N/cm and 12.63 kPa, respectively. Moreover, a systematic durability assessment of the PDMS coating was carried out to address the actual operating conditions of wind turbines. Fortunately, the results showed that the PDMS coating could withstand 200 icing/deicing cycles while maintaining constant deicing force and ice adhesion strength of less than 50 N/cm and 30 kPa, respectively. After long-term thermal aging (21 days), UV irradiation (42 days) and salt spray corrosion (20 days), the PDMS coating still retained superior icephobicity and outstanding large-scale deicing performance. This work contributes to the research and development of low-interfacial toughness materials for large-scale deicing applications on wind turbine blades.
研究领域:
材料科学
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能源工程
✓ 已验证
产品关联
DOI
高影响因子
Small Methods
·
2024
·
IF 10.7
Rui Zhang,Zhengmao Ding,Kaiqiang Wang,Hanli Zhang,Jinjin Li
Icing negatively impacts various industrial sectors and daily life, often leading to severe safety problems and substantial economic losses. In this work, a fluorinated resin coating with embedded graphene nanoflakes is prepared using a spin-coating curing process. The results shows that the ice adhesion strength is reduced by ≈97.0% compared to the mirrored aluminum plate, and the icing time is delayed by a factor of 46.3 under simulated solar radiation power of 96 mW cm −2 (1 sun) at an ambient temperature of −15 °C. The superior anti/de-icing properties of the coating are mainly attributed to the synergistic effect of the fluorinated resin with a low surface energy, the rough structure of the sandblasted aluminum plate, which reduces the contact area, and the embedded graphene nanoflakes with a superior photothermal effect. Furthermore, the hydrogen bonding competition effect between the exposed-edge oxygen-containing functional groups of the embedded graphene nanoflakes and water molecules further improves the anti-icing properties. This work proposes a facile preparation method to prepare coatings with excellent anti/de-icing properties, offering significant potential for large-scale engineering applications.
研究领域:
材料科学
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能源工程
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表面工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CELLULOSE
·
2023
·Vol. 30
·期 15
·9709-9723
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IF 5.7
Guo Qiyu,Wan Jinming,Song Chenying,Li Hailong,Hu Jian
Biofiber is an extensive and renewable raw material, whose products meet the demands of constructing an environmental-friendly and resource-favorable society. As a typical biofiber assembly, paper inherits its characteristics and may lose its mechanical properties after prolonged contact with water, leading to a material failure. Here, we report an environment friendly waterproof composite by a simple surface treatment. This composite is creatively prepared via a formation of rough microstructures for ink micro-aggregates on the ink-brushed paper, of which this bio-inspired structure is beneficial to hydrophobic properties and light capture capability. Specifically, it possesses excellent hydrophobicity with a high contact angle over 150° and photothermal performance with a solar evaporation rate of 1.324 kg m −2 h −1 under 100 mW/cm 2 . In addition, it reveals superior waterproof and deicing performance, decreasing the icing adhesion time to 63 s under 100 mW/cm 2 . Additional advantages include durability, designability, and large-area production. In view of these excellent properties, this waterproof photothermal material holds a bright prospect in the fields of solar evaporation, deicing device, packaging, and so forth. Graphical abstract
研究领域:
材料科学
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环境科学
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能源科学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING SCIENCE
·
2023
·
IF 4.7
Yameng Pei,Qingsong Xing,Anfu Chen,Jinxing Xu,Yanmei Zhang,Hanxiong Huang,Caihong Lei
Ice formation significantly hinders human productivity and daily life. Photothermal de-icing materials offer a promising solution for solar energy applications. Anodized Al oxide foils with diameter- and density-optimized micro/nanostructured pores were used as templates to prepare photothermal polypropylene/graphene (PP/GP) composites with varying GP contents through compression molding. The impact of the GP content on the absorption rate, photothermal properties, and anti-/de-icing performance of the PP/GP composites were systematically investigated. The transmittance at a GP content > 1 % was nearly zero. The reflectivity and absorbance of the PP/GP content increased and decreased, respectively, with an increasing GP content. The temperature of the center of the PP/GP composite stabilized at approximately 94 °C after 5 min of light exposure, and the de-icing time was 70 s. This innovative approach integrates superhydrophobicity with excellent photothermal conversion properties, enabling effective ice prevention in cold environments with prolonged icing completion times (214 s).
研究领域:
材料科学
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能源工程
✓ 已验证
产品关联
DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2022
·Vol. 46
·期 39
·18926-18937
·
IF 3.925
Hua He,Zhiguang Guo
Superhydrophobic conductive materials have attracted much attention because of their wide applications in oil–water separation, electromagnetic shielding, and human motion detection. Herein, we adopt a facile method to prepare a superhydrophobic conductive fabric. In brief, the composite fabric is composed of a cheap and elastic textile base, an interface layer polydopamine (PDA), functional layer aligned carbon nanotubes (ACNTs) and Cu nanoparticles, and low surface energy materials such as polydimethylsiloxane (PDMS). In this method, we encapsulate Cu nanoparticles on the surface of ACNTs, which improves the electrical conductivity of the fabric. PDMS could not only protect the indicated Cu nanoparticles from oxidation but also endow the fabric with superhydrophobicity and thus corrosion resistance. The results show that the PDA/ACNTs/Cu/PDMS fabric can maintain good electrical conductivity and excellent chemical stability and mechanical durability even after bending (500 times), solution immersion, and water washing. Furthermore, the combination of superhydrophobicity and electrical conductivity endows the PDA/ACNTs/Cu/PDMS fabric with an excellent electrocaloric effect and deicing performance. More interestingly, the prepared fabric can also be used to monitor human movements. This superhydrophobic conductive fabric has potential application prospects as waterproof materials, wearable electronics, heaters, and in other fields.
研究领域:
材料科学
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纺织工程
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能源技术
✓ 已验证
产品关联
DOI
高影响因子
POLYMER COMPOSITES
·
2023
·
IF 5.2
Xiaojian Zhang,Li Yuan,Guozheng Liang,Aijuan Gu
Developing photothermal anti/deicing fluor-free composite coatings with high wear resistance and liquid puncture resistance is an interesting challenge. Herein, a new biomass benzoxazine monomer (C-d) was synthesized, which was then sprayed on a glass slide, followed by spraying hyperbranched polysiloxane (HSi), polydopamine-coated micro AlN (P@mAlN), and polydopamine-coated nano AlN (P@nAlN), successively, to develop a new type of photothermal anti/deicing four-layer fluor-free composite coatings with high wear resistance and liquid puncture resistance (C-d/yHSi/0.4P@2bAlN, y is the mass ratio of HSi to C-d). Three-layer composite coatings (C-d/0.4P@zbAlN, z is the mass ratio of P@mAlN to P@nAlN) and two-layer composite coatings (C-d/xP@mAlN, x is the mass ratio of P@mAlN to C-d) were also prepared to study the influence of compositions on comprehensive properties of coatings. The results show that C-d/0.4P@zbAlN has significantly longer icing delay time (IDT) than C-d and C-d/xP@mAlN coatings but still shows poor wear resistance and liquid puncture resistance. Interestingly, C-d/yHSi/0.4P@2bAlN coatings have good superhydrophobicity; as y increases, both IDT and wear resistance increase significantly. When y = 0.5, the obtained C-d/0.5HSi/0.4P@2bAlN coating has the best integrated performance, including high anti-deicing property (IDT = 627 s), high wear resistance, and liquid puncture resistance as well as good photothermal deicing performance, the ice melts in 343 s under the irradiation with 808 nm infrared light, overcoming the bottleneck of poor wear resistance and liquid puncture resistance of photothermal anti/deicing coatings. Besides, C-d/0.5HSi/0.4P@2bAlN coating can effectively prevent the adhesion of pollutants and remain superhydrophobicity after soaked in different solutions (pH = 1–10). Highlights A new biomass benzoxazine with good flexibility was synthesized. Photo-thermal anti/deicing coatings with micro/nanostructured surfaces are built. The fluor-free coatings have excellent wear resistance and chemical resistance. The mechanism behind was elucidated.
研究领域:
材料科学
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化学工程
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表面工程
·
涂层技术
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2023
·Vol. 33
·期 14
·2213398
·
IF 19
Congyuan Zhang,Heng Xie,Yu Du,Xiaolong Li,Weilong Zhou,Ting Wu,Jinping Qu
The heat accumulation caused by the high power consumption of continuously upgrading electronic devices puts forward more requirements for the adaptability and durability of the flame retardant materials. Herein, inspired by the soil reinforcement effect of the shelter forest roots nearby the river and shoal, a superhydrophobic flame-retardant ethylene-vinyl acetate (EVA)/aluminum trihydroxide (ATH) composite with root-soil interlocked micro/nanostructure (MEA/PGCC) is prepared by combining the micro-extrusion compression molding and spray coating. The homogeneously dispersed ATH and the EVA with sufficient mechanical strength provide durability for the long-term work of the MEA/PGCC composite. The root-soil interlocked micro/nanostructure provides robust superhydrophobicity with a water contact angle of 156 ± 1.0° and a rolling angle of 4 ± 1.0° for the MEA/PGCC composite which is beneficial to improve acid and alkali tolerance, thermic resistance, and de-icing performance. The synergism of interface and surface function prominently improves the flame retardancy of the MEA/PGCC composite, which presents a limit oxygen index of 42%, and remarkable reduction in peak heat release rate of 64%, total heat release of 23%, and peak smoke production rate of 47%. The proposed method is a promising candidate for the mass production and practical application of the superhydrophobic flame retardant composite.
研究领域:
材料科学
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化学工程
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高分子科学
·
消防安全工程
✓ 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）