APPLIED SURFACE SCIENCE
·
2014
·
IF 2.538
Xiuyong Chen,Jianhui Yuan,Jing Huang,Kun Ren,Yi Liu,Shaoyang Lu,Hua Li
This study aims to further enhance the anti-corrosion performances of Al coatings by constructing superhydrophobic surfaces. The Al coatings were initially arc-sprayed onto steel substrates, followed by deposition of polyurethane (PU)/nano-Al 2 O 3 composites by a suspension flame spraying process. Large-scale corrosion-resistant superhydrophobic PU/nano-Al 2 O 3 -Al coatings were successfully fabricated. The coatings showed tunable superhydrophilicity/superhydrophobicity as achieved by changing the concentration of PU in the starting suspension. The layer containing 2.0 wt.%PU displayed excellent hydrophobicity with the contact angle of ∼151° and the sliding angle of ∼6.5° for water droplets. The constructed superhydrophobic coatings showed markedly improved anti-corrosion performances as assessed by electrochemical corrosion testing carried out in 3.5 wt.% NaCl solution. The PU/nano-Al 2 O 3 -Al coatings with superhydrophobicity and competitive anti-corrosion performances could be potentially used as protective layers for marine infrastructures. This study presents a promising approach for fabricatiing superhydrophobic coatings for corrosion-resistant applications.
研究领域:
材料科学
·
表面工程
·
腐蚀与防护
·
海洋工程
·
高分子材料
·
金属涂层
✓ 已验证
DOI
高影响因子
Coatings
·
2023
·Vol. 13
·期 3
·569
·
IF 3.4
Lei Fan,Bo Li,Yan Wang,Jinhang He,Jie Bai,Tao Zhu,Yuan Yuan
The icing of glass insulators is likely to cause faults such as insulator flashover, which poses a serious threat to the power system. Traditional deicing techniques have the disadvantage of being costly and inefficient. Herein, polytetrafluoroethylenes (PTFEs) as nanoparticles and epoxy and fluorosilicone resins as binders were blended to construct an anti-icing coating. The superhydrophobic (SHP) epoxy/fluorosilicone/PTFE coatings for anti-icing were successfully prepared on glass slides through one-step spraying. The effect of PTFE mass fraction on the microstructure, on the wettability and on the anti-icing properties of the coatings was investigated. The results showed that the coatings with different PTFE mass fractions had different microstructures. When the PTFE mass fraction was 47.2%, the SHP coating exhibited a uniform rough structure with an apparent contact angle as high as 164.7° and a sliding angle as low as 3.2°. Moreover, the water droplets can bounce back five times with a contact time of only 9.5 ms and a rebound height of 4.58 mm. In the low-temperature environment (−10 °C), the SHP coating displayed good anti-frosting, anti-icing and icephobic properties. The delayed frosting time (1499 s) and delayed freezing time (1295.3 s) of the SHP coating were three and five times longer than those of the glass, respectively. The SHP coating presented an ice-adhesion strength (39.8 kPa) that was six times lower than that of glass. The prepared SHP coating demonstrated potential applications for the anti-icing of glass insulators.Keywords:superhydrophobic;PTFE;spraying;anti-icing
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
Micromachines
·
2021
·Vol. 12
·期 3
·252
·
IF 2.891
Feiyu Fang,Han Wang,Huaquan Wang,Xiaofei Gu,Jun Zeng,Zixu Wang,Xindu Chen,Xin Chen,Meiyun Chen
In this work, a novel flexible electrically resistive-type MXene/Thermoplastic polyurethanes(TPU) based strain sensors was developed by a composite process of electrospinning (ES) and electrostatic spray deposition (ESD). Compared with other deposition processes, the sensing layer prepared by ESD has better adhesion to the ES TPU nanofiber membrane and is not easy to crack during the stretching process, thereby greatly improving the working range of the strain sensor. Furthermore, we obtained the sandwich structure easily by ES on the surface of the sensing layer again. This will help make the stress distribution more uniform during the stretching process and further increase the strain sensing range. The ESD-ES strain sensors were attached on skin to monitor various human motions. The results demonstrate that our ESD-ES strain sensors have wide application prospects in smart wearable device.Keywords:strain sensor;electrospinning;electrostatic spray deposition;MXene
研究领域:
材料科学
·
电子工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Coatings
·
2023
·Vol. 13
·期 10
·1792
·
IF 3.4
Lei Fan,Mingyong Xia,Jian Liu,Bo Li,Tao Zhu,Yingying Zhao,Linbo Song,Yuan Yuan
Ice accumulation on glass insulators is likely to cause faults such as flashover, tripping and power failure, which interfere with the normal operation of the power grid. Accordingly, superhydrophobic coatings with great anti-icing potential have received much attention. In this study, three superhydrophobic coatings (PTFE, Al2O3and SiO2) were successfully prepared on glass surfaces by using one-step spraying. The microscopic morphology, wettability, anti-icing and anti-glaze icing properties of the superhydrophobic coatings were comparatively analyzed. The results indicated that the PTFE coating had a densely distributed rough structure, showing a contact angle of 165.5° and a sliding angle of 3.1°. The water droplets on the surface could rebound five times. Compared with the Al2O3and SiO2coatings, the anti-icing performance of the PTFE coating was significantly improved. The freezing time was far more than 16 times that of glass (4898.7 s), and the ice adhesion strength was 9 times lower than that of glass (27.5 kPa). The glaze icing test in the artificial climate chamber showed that the icing weight of the PTFE coating was 1.38 g, which was about 32% lower than that of the glass. In addition, the icing/melting and abrasion cycles destroyed the low-surface-energy substances and nanostructures on the surface, leading to the degradation of the anti-icing durability of the PTFE coatings. However, the PTFE coating still maintained excellent hydrophobicity and anti-icing properties after UV irradiation for up to 624 h. The superhydrophobic coatings prepared in this work have promising development prospects and offer experimental guidance for the application of anti-icing coatings on glass insulators.Keywords:superhydrophobic coating;glass insulator;spraying;anti-icing
研究领域:
材料科学
·
电力工程
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Engineering Materials
·
2025
·
IF 3.5
Qian Su,Kangli Yang,Zhiqing Yuan,Cancheng Li,Shoutong Meng,Xuyu Long,Rui He
To address the poor water resistance and dust susceptibility of carbon fiber board, a simple and efficient spraying method was used to prepare a superhydrophobic coating on the carbon fiber board that was resistant to dust and ice. First, a hydrolyzed solution of KH550 was applied and cured to the carbon fiber board. Then, a solution was prepared by mixing silicone rubber (XC-107) with γ-aminopropyltriethoxysilane (KH550) in ethyl acetate. This solution was divided into three glass beakers. The first beaker kept the original solution unchanged. Nanometer silica (Nano-SiO2) was introduced into the solution in the second glass beaker, while ethyl acetate was added to dilute the solution in the third glass beaker. Finally, the prepared solutions were sequentially sprayed onto the surface of the carbon fiber board according to the order of the glass beakers. The results indicate that the dust removal efficiency of the superhydrophobic carbon fiber board reaches 98.36%, which is an improvement of 9.45% compared to ordinary carbon fiber board, with a water contact angle (WCA) of 158°. Meanwhile, in the anti-icing test, the icing time of the superhydrophobic carbon fiber board is delayed by more than four times compared to ordinary carbon fiber board. Compared to other similar superhydrophobic carbon fiber boards, this superhydrophobic carbon fiber board features a simple and efficient preparation method, is easy to produce on a large scale, has low cost, uses commonly available materials, and offers strong scalability while possessing characteristics such as dust resistance, anti-icing, abrasion resistance, and sandstorm resistance. This indicates that the superhydrophobic carbon fiber board can be used in many different fields, such as structural components of aircraft and spacecraft, body and interior parts of vehicles, bicycle frames, badminton and tennis rackets, bridges, medical devices, enclosures, and components for electronic products, bulletproof armor, drones, and more.
研究领域:
材料科学
·
表面工程
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
NANO
·
2021
·
IF 1.556
Xintao Chen,Xian Wu,Fang Li,Xiaofeng Zhao,Shanlin Wang
Hydrophilic–hydrophobic hybrid wettability structures, inspired by desert beetles, have been widely designed to enhance the dewdrops’ migration under subcooled or/and high-humidity environment. However, it is still a challenge to regulate the graded distribution of the hydrophilic micro-regions for condensation applications. In this paper, we design a simple spray method to prepare the superamphiphilic–superamphiphobic hybrid wettability coatings by controlling the mass ratio (MR) of superamphiphobic SiO 2 nano-powder and superamphiphilic gypsum micro-powder. We compare the macroscopical wettability, condensation heat transfer efficiency, frosting delayed time and water harvesting rate to demonstrate the unique advantage of hybrid wettability structures. The results show that the condensation heat transfer efficiency, frosting delayed time and water harvesting rate can be respectively promoted to about 131.50% ( MR = 1 : 0 . 5 ) , 134.74% ( MR = 1 : 0 . 5 ) and 135.62% ( MR = 1 : 1 ) , although their macroscopical wettability will gradually reduce with the MR increase. This work will provide substantial insights into the fabrication of efficient superhydrophilic–superhydrophobic hybrid wettability surfaces for condensation heat transfer, anti-frosting and water harvesting applications.
研究领域:
材料科学
·
热力学
·
表面工程
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2018
·
IF 8.097
Xiaojing Su,Hongqiang Li,Xuejun Lai,Zhonghua Chen,Xingrong Zeng
Superhydrophobic materials integrating stretchability with conductivity have huge potential in the emerging application horizons such as wearable electronic sensors, flexible power storage apparatus, and corrosion-resistant circuits. Herein, a facile spraying method is reported to fabricate a durable superhydrophobic coating with excellent stretchable and electrical performance by combing 1-octadecanethiol-modified silver nanoparticles (M-AgNPs) with polystyrene-b-poly(ethylene-co-butylene)-b-polystyrene (SEBS) on a prestretched natural rubber (NR) substrate. The embedding of M-AgNPs in elastic SEBS matrix and relaxation of prestretched NR substrate construct hierarchical rough architecture and endow the coating with dense charge-transport pathways. The fabricated coating exhibits superhydrophobicity with water contact angle larger than 160° and a high conductivity with resistance of about 10 Ω. The coating not only maintains superhydrophobicity at low/high stretch ratio for the newly generated small/large protuberances but also responds to stretching and bending with good sensitivity, broad sensing range, and stable response cycles. Moreover, the coating exhibits excellent durability to heat and strong acid/alkali and mechanical forces including droplet impact, kneading, torsion, and repetitive stretching–relaxation. The findings conceivably stand out as a new tool to fabricate multifunctional superhydrophobic materials with excellent stretchability and conductivity for flexible electronics under wet or corrosive environments.
研究领域:
材料科学
·
纳米技术
·
表面工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Magnesium and Alloys
·
2020
·
IF 7.115
Lingjie Li,Xia Li,Jinlong Chen,Lei Liu,Jinglei Lei,Nianbing Li,Gao Liu,Fusheng Pan
The robust magnesium surfaces with multi-functions are highly desirable, and the simple and scalable methods to construct such surfaces are urgently indispensable. Herein, we conducted a one-step spraying method to facilely fabricate the robust coating with multi-functions on magnesium alloys. The as-sprayed magnesium alloys surface is superhydrophobic with a static water contact angle (WCA) of 157.0° and a roll-off angle of 6.0°. Such surface has excellent mechanical, chemical and thermal stabilities, even undergoing various physical and chemical damages, including sand impact (10 g min −1 , ≥20 min), water impact (2 impacts s −1 , ≥ 180 min), abrasion (1.00 kPa, ≥25 cycles), peeling (≥2.15 kPa), high temperature (200 °C, ≥24 h), strong acidic/salty/basic media (pH = 1∼13) and organic-solvent immersion (ethanol and n-hexane, ≥24 h), demonstrating brilliant robustness. Notably, the surface displays multi-functions of corrosion protection, anti-fouling and heat insulation, which will undoubtedly promote the much wider applications of magnesium alloys.
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
·
2017
·
IF 2.589
Mengjiao Zhai,Yongfeng Gong,Xiuyong Chen,Tonghu Xiao,Guoping Zhang,Lianghao Xu,Hua Li
To exploit marine metal materials with antifouling and drag reduction properties, we constructed hydrophobic perfluoroalkoxy (PFA)/nano‑silver (Ag) coatings onto aluminum substrates by suspension flame spray deposition of PFA/AgNO 3 composites. Silver nanoparticles were formed in situ within PFA coating during the suspension flame spraying. The successful construction of PFA/nano-Ag coatings was revealed by field-emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and contact angle measurements, respectively. The additional silver nanoparticles play the significant role in regulating the sliding angle of the PFA-based coatings. The silver nanoparticles-loaded hydrophobic PFA coatings synergistically inhibited the adhesion of bacteria, while only PFA coatings with lower content of silver display drag reduction property. The simple and cost-effective approach is of great promise in mass-production of antifoulant-loaded hydrophobic coatings on general substrates for potential antifouling and drag reduction applications.
研究领域:
材料科学
·
海洋工程
·
生物医学
✓ 已验证
产品关联
DOI
高影响因子
Nanomaterials
·
2021
·Vol. 11
·期 12
·3242
·
IF 5.076
Yu Sun,Jin Chen,Fengchao Wang,Yi Yin,Yan Jin,Jun Wang,Xiaogai Peng,Ruiyi Han,Canyun Zhang,Jinfang Kong,Jing Yang
Nowadays, Mn-doping is considered as a promising dissolution for the heavy usage of toxic lead in CsPbX3perovskite material. Interestingly, Mn-doping also introduces an additional photoluminescence band, which is favorable to enrich the emission gamut of this cesium lead halide. Here, a solution spraying strategy was employed for the direct preparation of CsPbxMn1−x(Br,Cl)3film through MnCl2doping in host CsPbBr3material. The possible fabrication mechanism of the provided approach and the dependences of material properties on Mn-doping were investigated in detail. As the results shown, Pb was partially substituted by Mn as expected. With the ratio of PbBr2:MnCl2increasing from 3:0 to 1:1, the obtained film separately featured green, cyan, orange-red and pink-red emission, which was caused by the energy transferring process. Moreover, the combining energy of Cs, Pb, and Mn gradually red-shifted resulted from the formation of Cs-Cl, Pb-Cl and Mn-Br coordination bonding as MnCl2doping increased. In addition, the weight of short decay lifetime of prepared samples increased with the doping rising, which indicated a better exciton emission and less defect-related transition. The aiming of current work is to provide a new possibility for the facile preparation of Mn-doping CsPbX3film material.Keywords:MnCl2doping;CsPbxMn1−x(Br,Cl)3;thin films;solution spraying
研究领域:
材料科学
·
光学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
·
2020
·
IF 6.155
Wenzhi Li,Lihong Gao,Zhuang Ma,Yanbo Liu,Fuchi Wang,Jiawei Wang,Lijun Wang,Hezhang Li
Faced with the challenge of high energy ablation problems, especially for laser ablation , effective energy dissipation protective materials fabricate by efficient preparation method is a feasible solution. The Ni-graphite/SiO 2 coatings with different Ni content were prepared by plasma spraying method with optimized plasma spraying parameters. All coatings are pure without oxidation and dense. Their ablation behaviors were investigated by high power continuous wave laser. The results indicate that the Ni-graphite/SiO 2 coating with appropriate Ni content could realize the purpose of energy consumption by endothermal reaction of graphite/SiO 2 and reflection improvement. High Ni content will block the occurrence of endothermal reaction of graphite/SiO 2 and increase the heat diffusion to interior part of coating, which can make the ablation situation of coating more serious.
研究领域:
材料科学
·
激光技术
✓ 已验证
产品关联
DOI
高影响因子
Coatings
·
2022
·Vol. 12
·期 2
·185
·
IF 3.236
Cheng Ke,Yifan Fang,Zheng Zhou,Guohong Wang,Yongjia Liu,Wei Wu,Lishuang Xiao,Mengzhuo Zhang,Haibao Hu,Jianxi Liu
Superhydrophobic surfaces have great potential for self-cleaning, anti-icing, and drag-reducing because of their water repellency property. However, their super-hydrophobicity is destroyed under mechanical abrasion due to the vulnerability of the delicate surface textures. Here, we demonstrate a strategy to create a robust superhydrophobic surface using MXene and fluoridated silica as functional fillers in epoxy resin. The fluoridated silica produces low surface energy, MXene serves as a wear-resistant phase and epoxy resin is the binding matrix. The composite coating demonstrates a self-cleaning effect to remove particles from the superhydrophobic surface by rolling water droplets. Moreover, the coating exhibits excellent mechanical durability by standing abrasion to maintain super-hydrophobicity. The superhydrophobic composite coating has the advantages of low cost and feasibility and has the potential for expandable industrial promotion.Keywords:superhydrophobic;self-cleaning;SiO2;Mxene;epoxy resin;spraying
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
危险品化学品经营许可证（带存储）