Meniscus inspired flexible superhydrophobic coating with remarkable erosion resistance for pipeline gas transmission

Zang, Xuerui; Cao, Xuewen; Zheng, Weiwei; Zhu, Tianxue; Lei, Yonggang; Huang, Jianying; Chen, Zhong; Lin, Teng Chiu; Bian, Jiang; Lai, Yuekun

doi:10.1016/j.cej.2022.138573

Cited by 21 publications

(7 citation statements)

References 49 publications

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“…Taking low boiling n-hexane as an example, it can be easily removed from the adsorbent material and re-collected by distillation at 80 °C. After 10 cycles, CACAs exhibit excellent cycling stability and the adsorption capacity only slightly decreased by 2% ( Figure 3 b), which is attributed to the robust hybrid aerogel backbone that can resist the surface tension of solvent volatilization [ 40 ]. For high boiling point sorbents, CACAs can be ignited in air after adsorption to remove the adsorbate by combustion ( Figure 3 d).…”

Section: Resultsmentioning

confidence: 99%

Bionic Aerogel with a Lotus Leaf-like Structure for Efficient Oil-Water Separation and Electromagnetic Interference Shielding

Liu

Feng

et al. 2023

Gels

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Increasing pollution from industrial wastewater containing oils or organic solvents poses a serious threat to both the environment and human health. Compared to complex chemical modifications, bionic aerogels with intrinsic hydrophobic properties exhibit better durability and are considered as ideal adsorbents for oil-water separation. However, the construction of biomimetic three-dimensional (3D) structures by simple methods is still a great challenge. Here, we prepared biomimetic superhydrophobic aerogels with lotus leaf-like structures by growing carbon coatings on Al2O3 nanorod-carbon nanotube hybrid backbones. Thanks to its multicomponent synergy and unique structure, this fascinating aerogel can be directly obtained through a simple conventional sol-gel and carbonization process. The aerogels exhibit excellent oil-water separation (22 g·g−1), recyclability (over 10 cycles) and dye adsorption properties (186.2 mg·g−1 for methylene blue). In addition, benefiting from the conductive porous structure, the aerogels also demonstrate outstanding electromagnetic interference (EMI) shielding capabilities (~40 dB in X-band). This work presents fresh insights for the preparation of multifunctional biomimetic aerogels.

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Section: Resultsmentioning

confidence: 99%

Bionic Aerogel with a Lotus Leaf-like Structure for Efficient Oil-Water Separation and Electromagnetic Interference Shielding

Liu

Feng

et al. 2023

Gels

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“…The superhydrophobic protective film with self‐cleaning and anti‐corrosion properties should possess admirable mechanical durability and chemical stability for practical applications [31,32] . The mechanical durability of samples was measured by dragging sample over 1000 grit SiC paper under 50 g load and cross‐hatch tape adhesion test (ASTM D3359).…”

Section: Resultsmentioning

confidence: 99%

“…The superhydrophobic protective film with self-cleaning and anti-corrosion properties should possess admirable me-chanical durability and chemical stability for practical applications. [31,32] The mechanical durability of samples was measured by dragging sample over 1000 grit SiC paper under 50 g load and cross-hatch tape adhesion test (ASTM D3359). Figure S3 (a) shows the variation curves of contact angles of sample at different abrasion lengths, the Al alloys treated with 60/5-20/15 min-SS maintain 94.6 % of the initial contact angle after rubbing 210 mm.…”

Section: Chemistryselectmentioning

confidence: 99%

Fabricating Superhydrophobic Protective Films with Enhanced Self‐Cleaning and Anti‐Corrosion Properties through Multiple Anodic Oxidations on Aluminum Alloys

et al. 2023

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The development of aluminum (Al) alloys with superb anticorrosion and self-cleaning properties for prolonging the working life and reducing maintenance cost is a hot topic of concern. Since anodic oxidation has been proven to be an effective technique to prepare micro or nanostructures on Al alloys surface, this study proposes a novel and scalable multiple anodic oxidations method with gradient current densities for fabricating hierarchical micro-nanostructure film with appropriate roughness on Al alloys, while the SiO 2 -silane film reduced the surface free energy and enhanced the surface chemical inert state. As expected, the surface of Al alloys modified with the multiple anodic oxidations and SiO 2 -silane film has the most substantial hydrophobic properties, with contact angle up to 166°, rolling angle as low as 3.17°and excellent nonsticking effect of water droplets. This method enables the Al alloys surface to have excellent self-cleaning performance and corrosion resistance with protection efficiency up to 98.81 %. This multiple anodic oxidations method has a wide range of references for the modulation of micro-nanostructure on Al alloys surface and other metallic substrates to assemble superhydrophobic protective films.

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“…Li et al further verified the enhanced elastic buffering capacity of PDMS as an intermediate layer in SHS, relative to PU and epoxy resin. [107] In another study, [6] 100 μm PDMS was used as a buffer layer between the substrate and the top SH coating comprising lauric acid, CNTs, TiO 2 nanoparticles, PDMS and epoxy resin. CNTs here contributed to a dense network structure and provided additional impact resistance to the coating.…”

Section: Strategies In Enhancing Mechanical and Chemical Durabilitymentioning

confidence: 99%

“…These characteristics are particularly valuable for maintaining the efficiency of offshore structures, ensuring uninterrupted communication, safeguarding pipelines, and supporting sustainable aquaculture practices. Additionally, underwater SHS also find utility in diminishing noise, [ 4 ] facilitating gas collection, [ 5 , 6 ] and enabling efficient oil/water separation. [ 7 , 8 ] However, unlike in‐air coatings, underwater coatings must contend with dynamic water flow, extreme pressure variations, saltwater exposure, and the constant threat of biofouling.…”

Section: Introductionmentioning

confidence: 99%

Recent Advances in Superhydrophobic Materials Development for Maritime Applications

Tang,

Tian,

Molino

et al. 2024

Advanced Science

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Underwater superhydrophobic surfaces stand as a promising frontier in materials science, holding immense potential for applications in underwater infrastructure, vehicles, pipelines, robots, and sensors. Despite this potential, widespread commercial adoption of these surfaces faces limitations, primarily rooted in challenges related to material durability and the stability of the air plastron during prolonged submersion. Factors such as pressure, flow, and temperature further complicate the operational viability of underwater superhydrophobic technology. This comprehensive review navigates the evolving landscape of underwater superhydrophobic technology, providing a deep dive into the introduction, advancements, and innovations in design, fabrication, and testing techniques. Recent breakthroughs in nanotechnology, magnetic‐responsive coatings, additive manufacturing, and machine learning are highlighted, showcasing the diverse avenues of progress. Notable research endeavors concentrate on enhancing the longevity of plastrons, the fundamental element governing superhydrophobic behavior. The review explores the multifaceted applications of superhydrophobic coatings in the underwater environment, encompassing areas such as drag reduction, anti‐biofouling, and corrosion resistance. A critical examination of commercial offerings in the superhydrophobic coating landscape offers a current perspective on available solutions. In conclusion, the review provides valuable insights and forward‐looking recommendations to propel the field of underwater superhydrophobicity toward new dimensions of innovation and practical utility.

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Meniscus inspired flexible superhydrophobic coating with remarkable erosion resistance for pipeline gas transmission

Cited by 21 publications

References 49 publications

Bionic Aerogel with a Lotus Leaf-like Structure for Efficient Oil-Water Separation and Electromagnetic Interference Shielding

Bionic Aerogel with a Lotus Leaf-like Structure for Efficient Oil-Water Separation and Electromagnetic Interference Shielding

Fabricating Superhydrophobic Protective Films with Enhanced Self‐Cleaning and Anti‐Corrosion Properties through Multiple Anodic Oxidations on Aluminum Alloys

Recent Advances in Superhydrophobic Materials Development for Maritime Applications

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