JOURNAL OF MATERIALS SCIENCE
·
2022
·Vol. 57
·期 35
·16665-16674
·
IF 4.682
Xu Zhengzheng,Liu Yan,Yang Chuncheng,Wang Guoyong
Aluminum-based superhydrophobic surfaces are attracting great interest in many fields, such as aerospace, steamship. But the use of these materials in cold conditions has been severely limited because of the inevitable frost and ice formation on the surface. The research shows that the superhydrophobic surface (SHS) cannot realize effective anti-ice, and even the rough structure of the surfaces increases the adhesion force of ice, which brings great difficulty to deice. It is important to prepare a de-icing aluminum-based surface. We successfully prepared a slippery lubricant-infused porous surface, which not only has the self-cleaning property, non-infiltration and durability like the SHS, but also has the obvious effect of postponing the freezing, and more importantly, it has obvious advantages in passive defrosting, compared with SHS.
研究领域:
材料科学
·
表面工程
✓ 已验证
DOI
高影响因子
Advanced Optical Materials
·
2022
·Vol. 10
·期 12
·2200168
·
IF 10.05
Baoqing Wang,Zhimin Jing,Mingxi Zhao,Peng Yu,Eric Ashalley,Peihang Li,Cuiping Ma,Xin Tong,Roberto Caputo,Alexander O. Govorov,Hongxing Xu,Zhiming M. Wang
Photothermal superhydrophobic coatings are essential for a variety of applications including anti-icing and light-driven self-propelled motion. However, achieving a flexible and durable superhydrophobic coating with high photothermal efficiency and long-term stability is still challenging. Herein, a facile and eco-friendly approach to realizing a superhydrophobic coating with excellent flexibility is proposed. The coating is obtained by spraying titanium nitride (TiN) nanoparticles embedded in polydimethylsiloxane (PDMS) solution onto various substrates. A tight binding between the substrate and nanoparticles occurs that offers the coating the mechanical robustness to endure bending, twisting, abrasion, and tape peeling. The water repellency is retained even after 500 cycles of bending–twisting tests. Combined with the micro–nanoscale porous structure of the surface and plasmonic property of TiN nanoparticles, the coating shows excellent superhydrophobicity and high photothermal conversion properties. The equilibrium temperature of the coating is as high as 130 °C at room temperature under 1 W cm −2 of 808 nm near-infrared laser irradiation. Due to its flexible property, the coating can be easily applied to irregular surfaces, which, together with the excellent anticorrosion, anti-icing, and defrosting performances, makes it a reliable resource for multifunctional applications. This work offers a novel technological approach to flexible devices, wearable electronics, and smart textiles.
研究领域:
材料科学
·
纳米技术
·
表面工程
✓ 已验证
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2023
·
IF 8.6
Jiehui Li,Yaxin Wu,Jinmei He,Qinghua Liu,Xiaofeng Liu,Hui Liu,Yuyu Xue,Leihuan Mu,Mengnan Qu
Developing functional adsorption materials that efficiently adsorb high viscosity oil is crucial for solving oil spill accidents. Herein, low-density three-dimensional porous melamine sponge was used as the modified substrate. First, phytic acid is selected for modification to make it flame retardant. Then, polypyrrole (PPy) and hexadecyltrimethoxysilane (HDTMS) are modified on its surface through low-temperature polymerization and impregnation, ultimately obtaining a multifunctional durable superhydrophobic PA/PPy/HDTMS@MF (melamine foam) sponges with photo/electro-thermal effects and flame retardant. When the applied voltage is 10 V, the core temperature on the PA/PPy/HDTMS@MF sponge’s surface rapidly increases from 26.4 °C to 134.6 °C within 80 s, and the sponge will not burn and be damaged. Under the irradiation of one sunlight (1 kW/m 2 ), the surface core temperature can rapidly rise from 26.4 °C to 93 °C within 70 s. The superhydrophobic PA/PPy/HDTMS@MF sponge can all-weather absorb kinds of high viscosity crude oil and solid oils that are 18–27 times than its own mass, indicating that the prepared superhydrophobic sponge has excellent oil collection performance. And under one sunlight (1 kW/m 2 ), after 10 cycles of desorption, the prepared superhydrophobic sponge can still absorb 26 times more crude oil than its own weight. In addition, PA/PPy/HDTMS@MF sponge also has the characteristic of photothermal defrosting and deicing, and the ice on its surface can begin to melt within 5 min under one sunlight (1 kW/m 2 ). The melted water will not enter the inside of the sponge, effectively ensuring the utilization efficiency of photothermal effects. Based on the above advantages, the prepared photo/electro thermal conversion superhydrophobic sponge has excellent development prospects in the field of high viscosity oil adsorption and photothermal defrosting/deicing.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
Materials Today Physics
·
2022
·
IF 11.021
Hua He,Wei Huang,Zhiguang Guo
Facing the problems of fossil energy shortage and solid surface icing, the use of solar energy to remove surface ice accumulation is a promising solution. Here, we propose a superhydrophobic coating with a photothermal effect for anti-icing and de-icing and defrosting performance. We designed the coating using a simple secondary spray method. That is, a bonding substrate (epoxy resin) is first constructed on the glass substrate , then a protective layer (polydimethylsiloxane(PDMS)) mixed with SiC/TiN composite particles is sprayed onto the epoxy resin surface, and finally dried to obtain a photothermal superhydrophobic coating. In this design, the coating shows (I) excellent superhydrophobicity (water contact angle = 155°, sliding angle = 4°), (II) excellent photothermal effect (the surface temperature of obtain coating rapidly rose to 111.8 °C under 1 sun), and (III) good chemical and mechanical stability. As a result, the coating shows excellent anti-icing, de-icing, and defrosting properties. For example, the coating can significantly extend the icing time. In the face of surface frozen water droplets, frost layers, and large areas of ice cover, the coating can rapidly photothermally remove surface ice layers under 40 mW cm −2 light irradiation. As a result, the coating is simple to prepare and has excellent superhydrophobic, photothermal anti-icing/de-icing, and defrosting properties. The study is of great significance for multifunctional applications.
研究领域:
材料科学
·
能源工程
·
表面工程
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2024
·
IF 6.3
Yihao Yang,Yuanyuan Tu,Zhuoyao Lou,Xuefeng Gui,Jiali Kong,Zhenzhu Huang
Photothermal superhydrophobic coatings are promising for anti-icing/deicing. However, preparing such coatings from environmentally friendly and sustainable strategies is challenging. Herein, a bio-based and durable photothermal superhydrophobic coating is prepared via layer-by-layer strategy. Bio-based methacrylic acid epoxidized soybean oil oligomers are synthesized as an alternative to petroleum-based binders. Meanwhile, efficient photothermal conversion of hydrophobic particles are enabled by oxidative self-polymerization of dopamine to decorate hydrophobic silica particles grafted with hydrophobic long-chain alkanes and photo-curable methacrylic acid moieties. Ultimately, the superhydrophobic coating is achieved by spraying photothermal hydrophobic particles onto an oxygen-inhibited layer of pre-cured bio-based binder followed by thorough photocuring treatment. The coating exhibits powerful water repellency (WCA of 158.2 ± 1.6°, SA of 4.6 ± 0.8°), good robustness, chemical and UV irradiation resistance. Moreover, under NIR laser irradiation (808 nm, 1 W/cm 2 ), the coating features excellent photothermal conversion efficiency (ΔT of 41.0 °C at 30 s) and stable photothermal conversion performance. And in frigid conditions (-15 °C, ∼73 ± 5 % RH), the coating delivers rapid defrosting (few seconds) and deicing (20 μL water droplet melts in 42 s) performance under NIR irradiation of 1 W/cm 2 . Therefore, the as-prepared coating provides valuable insight into global anti-icing/deicing action.
研究领域:
材料科学
·
表面化学
·
环境科学
·
涂层技术
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2020
·
IF 8.758
Yubo Liu,Yang Wu,Yizhe Liu,Rongnian Xu,Shujuan Liu,Feng Zhou
Preventing ice formation and ice swift removal from the solid surface are essential in numerous application fields. Superhydrophobic coating is an effective way to delay the icing phenomenon. However, the superhydrophobic coating was wetted easily after icing–deicing cycles that led to the failure of anti-icing. In this study, a robust, amphiphobic coating consisted of fluorinated multiwalled carbon nanotubes (FMWCNTs) and commercial polyurethane was constructed by a simply spray process. Because of the addition of FMWCNTs, the coating demonstrated a good amphiphobic feature and highly efficient photothermal conversion, which endowed the coating surface with excellent deicing and defrosting characteristics under sunlight irradiation. In addition, self-cleaning and self-healing properties of the coating under sunlight ensured its efficient photothermal conversion and long service life. To further improve the photothermal deicing effect, a coating system containing a photothermal layer (P), thermal-conductive layer (C), and thermal-protective layer (P) was constructed. The heat generating from the photothermal layer can transfer the whole coating surface by the conductive layer, but with limited transmission to substrate materials by a thermal-protective layer. The coating system can still deice and defrost rapidly on the whole surface and only a small portion of photothermal coating was irradiated under extremely low temperature. The outdoor experiment has confirmed that the coating melted and removed snow rapidly in a winter environment. The multifunctional photothermal deicing coating may have a wide application in outdoor surrounding.
研究领域:
材料科学
·
表面工程
·
涂层技术
·
环境科学
✓ 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）