OPTICS AND LASER TECHNOLOGY
·
2017
·
IF 2.109
Yuxin Song,Cong Wang,Xinran Dong,Kai Yin,Fan Zhang,Zheng Xie,Dongkai Chu,Ji'an Duan
In this study, a facile and detailed strategy to fabricate superhydrophobic aluminum surfaces with controllable adhesion by femtosecond laser ablation is presented. The influences of key femtosecond laser processing parameters including the scanning speed, laser power and interval on the wetting properties of the laser-ablated surfaces are investigated. It is demonstrated that the adhesion between water and superhydrophobic surface can be effectively tuned from extremely low adhesion to high adhesion by adjusting laser processing parameters. At the same time, the mechanism is discussed for the changes of the wetting behaviors of the laser-ablated surfaces. These superhydrophobic surfaces with tunable adhesion have many potential applications, such as self-cleaning surface, oil–water separation, anti-icing surface and liquid transportation.
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
SURFACE & COATINGS TECHNOLOGY
·
2024
·
IF 5.3
Pan Cao,Xuxu Dong,Chengqing Yuan,Xiuqin Bai,Chao Zhang
Marine biological fouling has a serious impact on artificial facilities, and traditional antifouling coatings are not beneficial to green development, which lead to the urgent to develop green strategies that can effectively prevent fouling. In this study, an innovative confluence of physical and biological approaches was employed to mitigate the harm caused by biofouling on a material substrate. Firstly, a hierarchical microstructured morphology was prepared on an aluminum surface by reactive ion etching and characterised. The antibacterial peptide, A-2S, was surface modified with dopamine as a coupling agent to produce a physico-biological synergistic antifouling surface. X-ray photoelectron spectroscopy, fourier transform infrared spectroscopy, and electrochemical experiments were then used to analyse the binding effect and corrosion resistance performance. A-2S was successfully modified on the sample surface and exhibited good corrosion resistance with a corrosion inhibition efficiency of 86.57 %. Compared to a bare aluminum plate, the microstructure surface has a certain inhibitory effect on fouling organisms, and the antifouling performance decreases over time. In contrast, the antimicrobial peptide synergistic surfaces demonstrated superior durable antifouling performance. Compared with the 50 % of the antifouling performance on the microstructure surface, the synergistic surface has a unique contact point effect of the microstructure and excellent antibacterial and bactericidal properties of antimicrobial peptides, resulting in a surface antifouling performance of over 80 %. The synergistic modification method enhanced the corrosion resistance of the material and reduced the adhesion of fouling organisms, mitigating the harm caused by biofouling on the marine equipment substrate.
研究领域:
材料科学
·
海洋生物学
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2021
·Vol. 56
·期 27
·15463-15480
·
IF 4.22
Chen Tianchi,Guo Jie,Zhang Yingying,Hu Ningning,Zhang Jialu
Due to the construction of complicated micro-/nanohierarchical structures, designing durable superamphiphobic Al surfaces by a simple, environmentally friendly, and fast method remains a great challenge. In this article, we used a simple and environmentally friendly technique that includes laser marking and water boiling treatment to create triple-scale micro-/nanostructures on 1060 Al surfaces. The as-prepared 1060 Al surfaces revealed excellent superamphiphobicity with low sliding angles, owing to great Cassie state stability after 1H,1H,2H,2H-perfluorodecyltriethoxysilane (FAS-17) modification. The contact angle of the water droplets reaches 160°, and that of peanut oil droplets reaches 155° on this surface. Meanwhile, this superamphiphobic Al surface also possesses excellent self-cleaning ability and oil resistance. Even when entirely immersed in oil sludge, the as-prepared Al surfaces can retain superamphiphobicity. Furthermore, the as-prepared superamphiphobic Al surface demonstrates outstanding chemical stability and endurance in a variety of application environments. In addition, the as-prepared superamphiphobic Al surface offers potential anti-icing and anti-frosting properties. Therefore, the as-prepared superamphiphobic Al surface will be a potential candidate with broad applications in aerospace, construction, and marine industries. Graphical abstract
研究领域:
材料科学
·
表面工程
✓ 已验证
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
PROGRESS IN ORGANIC COATINGS
·
2024
·
IF 6.5
Jiaxuan Zhou,Zhitao Wang,Ran Liu,Kai Qi,Yubing Qiu,Xingpeng Guo
Fabricating metal-organic frameworks (MOFs) membranes directly onto metal surfaces as anticorrosive coatings is a feasible approach for the application of MOFs in corrosion protection . The MOFs membranes with specific organic groups can be further customized as versatile platforms for developing various functional coatings. Herein, UiO-66 and UiO-66-NH 2 membranes are synthesized onto aluminum surfaces through a polydopamine-assisted method, which are then grafted with superhydrophobic molecules of perfluorodecyltriethoxysilane (PFDTES). The -COOH groups in UiO-66 and -COOH/-NH 2 groups in UiO-66-NH 2 can serve as firm anchor sites for covalently grafting with PFDTES, enabling robust superhydrophobicity of the as-prepared coatings. The superhydrophobic surfaces exhibit water repellency (water contact angle of ∼165 o ), chemical (pH and salinity) and wear-resisting robustness, and long-term service durability. They also perform decent anti-fouling, self-cleaning, and anti-icing properties. Notably, sustainable corrosion protection can be provided by both coatings during immersion in saline solution (3.5 wt% NaCl) for one month and during a two-week salt spray test. Compared with UiO-66, the -NH 2 groups on UiO-66-NH 2 as extra grafting sites for firmer immobilization of more PFDTES molecules facilitate more durable superhydrophobicity and corrosion protection. We believe that this work could offer valuable insights into the multi-functional development of MOFs membranes-based coatings.
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 MATERIALS SCIENCE
·
2019
·Vol. 54
·期 10
·7469-7482
·
IF 3.442
Wang Yiqi,Shi Haixiao,Li Xiaoguang
Superhydrophobic aluminum (Al) surfaces are desired in many applications and have been widely studied, but some fundamental issues in their fabrication are not yet fully understood. In this study, commonly used HCl solution and organic acid/sulfur reagents were employed for clarifying the phenomena in etching and composition modification. An unstable layer was revealed after HCl etching, which was removable with water flushing, and this layer, consisting of scattered AlCl 3 /Al 2 O 3 particles surrounded by Al 2 O 3 plates with cracks, caused changes in surface appearance from bright to dark. A complete change in surface color corresponded to sufficient etching, and hence, this visible phenomenon could be used to confirm the shortest etching time for achieving desirable superhydrophobicity. Composition modification with dodecanethiol and myristic acid also modified the microstructure through a slight etching mechanism and a synergistic effect was found with the use of their mixture, which led to the finest grains and most abundant carbon chains on the final surfaces. Consequently, the best superhydrophobicity was revealed in static and dynamic experiments with droplets. Finally, using the advantage of flexibility, a superhydrophobic Al sheet was demonstrated to be suitable for subjecting droplets to controlled rolling and coalescence, which could be meaningful for many droplet-related studies.
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
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2022
·
IF 5.518
Shuwei Lv,Xinming Zhang,Xiaodong Yang,Qiao Liu,Xianli Liu,Zhuojuan Yang,Ying Zhai
Aluminum (Al) and its alloys have been widely used in aviation, shipbuilding, automobile industry and other fields due to their excellent properties. However, the inherent hydrophilicity of Al and its alloys makes them vulnerable to contamination, corrosion, and even damage in harsh environments, which seriously restrains their further applications. To address the above problems, this paper reports a simple, efficient, and non-fluorinated method to prepare a slippery lubricant-infused porous surface (SLIPS). Firstly, the Al substrate was cyclically chemical etched to construct honeycomb-like porous structures. After 1-Octadecanethiol modification and silicone oil injection, the SLIPS was obtained with a water sliding angle (SA) of 3°, and various liquids like water, mud water, ink, juice, milk, 3.5 wt% NaCl , HCl, and NaOH could slide off the SLIPS at an tilted angle of 20°. Then, the prepared SLIPS was subjected to extreme tests such as silicone oil shear stability, repeated tape sticking, and natural environment corrosion, and the SLIPS after these tests still exhibited a SA of 20°. In addition, compared with original Al surface, the SLIPS had longer icing-delaying time and lower ice adhesion strength , showing better anti-icing performance. Finally, polarization curves, Nyquist curves, and equivalent circuit of different surfaces were collected and analyzed, and the results indicated that the SLIPS possessed much better corrosion resistance than the original Al surface. The SLIPS with these superb properties is expected to bring new avenues for marine industrial applications.
研究领域:
材料科学
·
表面工程
✓ 已验证
DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2022
·
IF 6.206
Xinchen Han,Ning Li,Bo Wu,Deyu Li,Qinmin Pan,Rui Wang
Chromate-phosphate/water-soluble resin composite conversion coatings (CP/RC) were prepared on the aluminum surface through a non-washing, dip coating-baking chemical conversion treatment method. Chromate-phosphate conversion film (CP) and water-soluble resin conversion film (RC) were also prepared for comparison studies. The CP/RC surface was found to be the most homogeneous, with the strongest protection against aluminum , and was not corroded during a 20-day neutral salt spray (NSS) test and a 3.5 wt% NaCl immersion test. The analysis shows that CP/RC is mainly composed of three parts: the outermost covering layer with the resin as the main body (polymer, AlPO 4 , CrO 3 and Cr 2 O 3 ); the internal composite conversion layer composed of resin and inorganic skeleton (Al 2 O 3 , Cr 2 O 3 , CrO 3 , AlPO 4 , CrPO 4 , Al, AlF and polymer); the surface layer of aluminum substrate (Al, Al 2 O 3 and AlPO 4 ). XPS also shows that Cr 6+ reacts with resin to form related compounds, which proves that the resin component and inorganic component in the coating are compounded.
研究领域:
材料科学
·
化学工程
✓ 已验证
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
CORROSION SCIENCE
·
2019
·
IF 6.355
Yanhui Cao,Dajiang Zheng,Jingsong Luo,Fan Zhang,Cheng Wang,Shigang Dong,Yanlong Ma,Zhaoyuan Liang,Changjian Lin
In this work, a novel in-situ grown layered double hydroxide (LDH) film co-intercalated with inhibitors (vanadates) and low surface energy substance (laurates) was immobilized on Al substrates. A long-term monitoring of electrochemical impedance spectra (EIS) of the various samples in 3.5 wt.% NaCl solution demonstrated the synergetic protection of the intercalated two functional species. Meanwhile, the X-ray diffraction (XRD) result of the samples after immersion in NaCl solution for a long time presented the anion-exchange process between vanadates/laurates and chlorides. The synergetic effect of the two species loaded film significantly contributed to the enhanced long-term corrosion protection of aluminum.
研究领域:
材料科学
·
腐蚀与防护
✓ 已验证
产品关联
DOI
高影响因子
Surfaces and Interfaces
·
2024
·
IF 5.7
Congqing Yang,Chao Gao,Weixiang Zhou,Huaidi Gu,Mingxi Pan,Hu Li,Yapeng He,Hui Huang
Faced with the challenge of uncontrollable Ag layer deposition morphology during the preparation of silver-coated aluminum particles (Al/Ag). A simple and nontoxic method involving the introduction of surfactants (PEG, PVP, and gelatin (GEL)) to alter the anisotropy of Al surface energy was proposed to achieve control over Ag deposition morphology. Theoretical calculations indicate that PEG undergoes physisorption to Al, while PVP and GEL can alter the surface energy of specific crystal planes by selectively binding to different crystal facets. This action alters the growth habit of Ag on the Al surface and modulates the Ag deposition behavior, these conclusions align with experimental results. Compared with PEG and PVP, the incorporation of GEL was beneficial for the formation of a conformal Ag layer. This can be attributed to GEL preferentially passivating the highest crystal plane Al (110) surface, forming a buffer layer at the solid-liquid interface, leveling out the Ag deposition rate on various crystal planes, and also effectively inhibiting side reactions, in addition to enhancing the wettability of reaction solution. The Al/Ag particle exhibits excellent electrical conductivity (1.03 × 10 −6 Ω·cm) and electromagnetic absorption (−32.5 dB, 1.62 GHz), it is suitable for use as a highly conductive electromagnetic shielding material.
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
MATERIALS LETTERS
·
2022
·
IF 3.574
Yu Liu,Gan Yuan,Chunlei Guo,Chi-Vinh Ngo,Wei Li
Ethylene glycol (EG) is widely used as a cooling agent in factories, aviation, and automobiles. However, its corrosive nature can create significant damage and reduce the life cycle of devices. This paper compares three different methods to achieve the superhydrophobic anti-corrosion aluminum surfaces for working in an engine coolant environment. The methods are combinations between femtosecond laser fabrication and chemical coatings using Polydimethylsiloxane (PDMS) and Triethoxy-1H,1H,2H,2H-tridecafluoro-n-octylsilane (TTFOS). All the samples show superhydrophobicity with contact angles greater than 150°, and sliding angles smaller than 10°. The superhydrophobic surface (SHS) show the best corrosion rate up to three orders of magnitude compared to flat surfaces when working in an engine coolant environment. Moreover, corrosion inhibition efficiencies of the fabricated surfaces impress the best results greater than 98%. The anti-corrosion behavior of the SHS is explained. After comparing the performances of the surfaces fabricated by three methods, the most suitable method is proposed to produce anti-corrosion aluminum surfaces for applications using engine coolant as an environment.
研究领域:
材料科学
·
表面工程
·
腐蚀科学
·
化学工程
✓ 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）