MATERIALS SCIENCE AND TECHNOLOGY
·
2017
·
IF 1.538
Sirong Yu,Hao Li
In this work, a simple method, including electrodeposition and chemical modification, for fabrication of a superhydrophobic and oleophobic coating on steel substrate is reported. The surface morphology of this coating showed concave structure, and the contact angles of water and glycerol on this coating surface were about 153.57° and 149.32°, respectively. In addition, the water droplet was easy to roll on this coating surface, and the sliding angle was smaller than 10°. The contact angle of the water/ethanol droplet with different surface tension, from 56 to 36 mN m−1, was also >130° on this coating surface, indicating this as superhydrophobic and oleophobic coating surface with good lyophobicity. Moreover, this coating surface had excellent non-sticking property for the water droplet under a certain external pressure, self-cleaning property and long-term stability.
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
TRIBOLOGY INTERNATIONAL
·
2025
·
IF 6.9
Shaowen Dong,YongFeng Yang,XiaoYang Ma,ChunJuan Cui,Wei Wang,JinJin Li
Friction and wear shorten equipment lifespan and cause energy loss, nd superlubrication achieved on steel-to-steel surfaces remains challenging. By adding tannic acid-modified black phosphorus nanosheets (TA-BP) to the tartaric acid/glycolic acid mixture (TCA/EG), macroscopic superlubrication can be achieved on engineering steel surfaces in just 5 s. Compared to TCA/EG, the wear rate of friction pairs decreased by 99% to 1.68×10⁻ 10 mm 3 ·N -1 ·m -1 . Surface analysis revealed that TA-BP rapidly deposits on friction pair surfaces, decomposes TCA into carbon films, and forms a composite friction film with BP that exhibits ultra-low shear strength. This tribofilm further reduces friction coefficient through synergistic interaction with lubricants. The study provides new insights for developing super lubricants suitable for mechanical applications.
研究领域:
材料科学
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摩擦学
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表面工程
·
纳米材料
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机械工程
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Bio Materials
·
2025
·
IF 4.7
Fei Ma,Xinde Tang,Yanan Chao,Xinyan Wang,Xuanjie Zheng,Ruixin Fu,Zihao Tang,Laixue Pang,Fuying Dong,Haixia Cheng,Peng Wang
Polymeric coatings that combine resistance to adhesion (“defending”) and killing (“attacking”) of biocontaminants were proposed to endow the surface with nonadhesive and bactericidal capabilities. In contrast, a zwitterionic copolymer P(GMA-co-DMAPS) with antifouling groups ([2-(methacryloyloxy)ethyl]dimethyl-(3-sulfopropyl)ammonium hydroxide, DMAPS) and a zwitterionic/cationic copolymer P(GMA-co-DMAPS-co-DMC) with bactericidal groups ([2-(methacryloyloxy)ethyl]trimethylammonium chloride, DMC) were synthesized, of which the latter exhibited synergistic inhibitory and killing properties. The distinct feed ratios of monomers were conducted, and the optimal molar ratio was obtained. The polymer coating was chemically bonded to the surface of substrates such as stainless steel via the addition–elimination reaction of epoxy groups and hydroxyl groups. Stainless steel surfaces grafted with G20D80-5DMC exhibited fine antifouling and bactericidal properties. The results showed that a highly efficient defending–attacking synergistic effect was achieved with antiprotein adsorption of more than 90% and bactericidal rates against Staphylococcus aureus and Escherichia coli of 98.6% and 96.6%, respectively. The polymers proposed in this study can effectively play an antifouling and antibacterial synergistic role and can be grafted onto substrates through a simple and effective method, showing attractive potential in marine, biomedical, and industrial applications.
研究领域:
材料科学
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生物医学
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海洋科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
RSC Advances
·
2016
·Vol. 6
·期 53
·47588-47594
·
IF 3.289
Song Luo,Qiongbin Zheng,Xiaohua Jie,Liuyan Zhang
Micro-shot peening (MSP) was combined with subsequent anodization to produce a micro-nano structure on a carbon steel surface. It is to be noted that carbon steel is an engineering material rather than a non-engineering material. Non-engineering materials are commonly used substrates in studies relating to preparation of superhydrophobic surfaces. The results show that MSP produces a peened surface with a micro-scale structure. Subsequent anodization forms an anodized film with a nano-scale structure based on the peened surface. Hence, a steel surface with a micro-nano structure is produced by the combined method. Compared with the steel surface with a single micro-scale structure, the steel surface with a micro-nano structure exhibits a higher hydrophilicity. The steel surface with a micro-nano structure becomes superhydrophobic after modifying with fluoroalkylsilane.
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
TRIBOLOGY INTERNATIONAL
·
2023
·
IF 6.2
Zhiqiang Shan,Xiaohua Jia,Ding Wang,Qiao Tian,Jin Yang,Yunfeng Su,Haojie Song
To realize the synergistic lubrication of micro/nano-cellulose and MXene in base oil. Herein, a micro/nano-cellulose confined MXene/polytetrafluoro-wax (NC-MXene/PFW @PDA) composite was prepared by one-step hydrothermal and in-situ loading methods. It was used as a lubricant additive of PAO based oil and achieved macroscopic super lubrication on the surface of engineering steel. The tribological properties of the NC-MXene/PFW@PDA lubricant on the surface of engineering steel were tested at various contents, different loads and sliding speeds. The results show that the friction coefficient and wear rate on the steel surface are reduced by 666.7% and 89.4% respectively compared with pure PAO lubricant. Finally, the synergistic lubrication mechanism was proposed by characterizing the wear surface and performing lubrication theoretical calculations.
研究领域:
材料科学
·
摩擦学
✓ 已验证
产品关联
DOI
高影响因子
ANALYST
·
2013
·Vol. 138
·期 8
·2357-2362
·
IF 3.969
Linru Xu,Yan Li,Yayun He,Bin Su
Visualization and detection of latent fingerprints (LFPs) on metal surfaces are of highly practical importance, e.g., in identifying gun cartridges. We report herein the visualization of LFPs on stainless steel surfaces by electrochemiluminescence (ECL). Since organic residues, such as fatty acids, in the fingerprint deposit make the underlying surface electrochemically inert or less active, an ECL reaction occurs only on the metal portions untouched by the fingertip, hence generating a negative image of the fingerprint. The popular ECL reaction solution, consisting of ruthenium(II) tris(2,2′-bipyridyl) and tri-n-propylamine, was used for this imaging purpose. Factors, including the applied potential and the concentration of ECL luminophore, as well as the stability of ECL negative images, were investigated to achieve a satisfactory visualization enhancement. This imaging approach is simple, rapid, non-invasive, and no pre-treatment either on the background or on the fingerprint itself is needed. It constitutes a powerful tool for visualizing LFPs on metal surfaces. This method was also demonstrated to be suitable for enhancing LFPs collected from various surfaces.
研究领域:
法医学
·
分析化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2022
·
IF 5.518
Chenyang Wang,Jihui Wang,Wenbin Hu
ZnO@ZIF-8 films were prepared on Q235 steel surface through solvothermal reaction by pre-electrodepositing ZnO films and modified with stearic acid (SA). The surface morphology , elements content, crystal structure and chemical structure of films were studied by scanning electron microscopy (SEM), energy dispersive spectrometer (EDS), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The wettability of films was measured by water contact angle meter. The corrosion behavior of films was tested by Electrochemical tests. ZnO films show hexagonal nanotubular morphology, having the best compactness and corrosion resistance at deposition current density of 2.3 mA/cm 2 with the protection efficiency of 90.11%. After solvothermal reaction, ZIF-8 grains are formed and clad ZnO nanotubes , forming a contact film to prevent corrosive ions attacking steel efficiently. ZnO@ZIF-8 films have the best compactness and corrosion resistance at Zn 2+ concentration of 0.06 mol/L with the protection efficiency of 99.83%. But the corrosion resistance of ZnO@ZIF-8 film declines quickly for the water molecules can get inside the film and destroy the bond between ZIF-8 grains. Thus, SA was grafted to ZnO@ZIF-8 film to enhance its hydrophobicity . After SA modification, the protection efficiency reaches 99.99% and maintains at 95.29% after 14 days immersion in the solution of 3.5 wt.% NaCl .
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
WEAR
·
2024
·
IF 5.3
Wei Liu,Ningbo Zhe,Fubing Bao,Ming Kong,Zhi Feng,Jinqing Wang,Xiaoyu Liang
Deformation and erosion of steel due to particle impacts in high-temperature environments are common issues in industrial applications. Under high-temperature conditions, an oxide layer forms that affects the deformation and erosion of the steel surface following particle impacts. Studying the interaction mechanism of oxidation and deformation (erosion) is of considerable significance. Traditional research methods primarily involve ex-situ measurements on samples post-erosion and oxidation, which cannot capture the morphological changes of the steel surface immediately following particle impact. Utilizing 3D digital holography (DH) technology, this paper develops a measurement system to investigate the surface morphological changes in steel induced by single particle impacts. We utilized this experimental system to measure the impact crater morphology of 500 μm zirconia particles impacting Q690 steel sheets. Our findings indicate that Hertzian ring cracks formation is significantly affected by heating temperature and impact angle. Notably, oxide layer peeling and erosion occurred at an impact angle of 30°. Additionally, impact crater depths at a 90° angle and impact speeds ranging from 1 to 20 m/s varied between 0.66 and 4.25 μm, with crater depths showing a correlation to the thickness of the oxide layer. Concurrently, in-situ measurements of the impact crater healing process during heating revealed that the crater formed at a 30° impact angle, which had numerous microcracks, exhibited significantly better healing compared to the crater formed at a 90° impact angle. The thickening process of the oxide layer were also analyzed, leading to the derivation of the oxide layer growth kinetic equation based on the measurement data: K p 0 = 2.39 × 10 − 8 exp ( − 17401 / R T ) . This study is the first to use DH technology to measure the surface morphology of steel and to conduct in-situ analysis of the oxide layer thickening process following particle impact and during heating. This approach provides a novel perspective for understanding the erosion-oxidation interaction mechanism.
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 ENGINEERING
·
2025
·
IF 2.6
Xia Zhong,Jiaojiao Bai,Chengxi Deng,Hua Dong
This study presents the fabrication of pinecone-structured ZnO microparticles using a solvothermal method, which were subsequently applied to steel surfaces in combination with epoxy resin and perfluorosilane to create a superhydrophobic coating, termed FluoroZnO-Fe. The low surface energy and micro-nano hierarchical structure of the prepared coating significantly enhance its water repellency and reduces its adhesion, resulting in water contact angle as high as 161° and sliding angle as low as 2°. The FluoroZnO-Fe surface demonstrated exceptional stability. Its water contact angle remains above 150° and water sliding angle remains below 5° even after treated with mechanical abrasion, high temperatures, and exposure to acidic and alkaline environments. Importantly, when subjected to heated circulating brine, the FluoroZnO-Fe coating exhibited remarkable anti-scaling properties, achieving a 93.4% reduction in scale deposition compared to untreated bare steel. This research highlights the potential of FluoroZnO-Fe coatings for industrial applications where corrosion resistance and self-cleaning properties are critical.
研究领域:
材料科学
·
表面工程
·
化学工程
✓ 已验证
DOI
高影响因子
Journal of Bionic Engineering
·
2025
·
IF 5.8
Lin Zhen,Xu Peng,Huang Junfei,Zhang Jinhong,Zhang Xiaolong,Li Lijun,Zhang Yurong,Wang Ruteng,Long Xinping,Lei Yifeng,Song Changhui,Chen Daobing,Xue Longjian
Bioinspired superhydrophobic surfaces have been used for drag reduction. However, the secondary structures and the air cushions on these surfaces could be destructed in a flow, losing the effect of drag reduction. Here, a stainless-steel surface with mushroom-like cross-section (SMC) and diamond cavities (SMC D ) having a drag reduction rate up to 19.37% is developed by 3D printing. The concealed re-entrant structures in SMC D prevent the infiltration of water into the chamber and form gas cushions, which converts the sliding friction at liquid-solid interface into rolling friction at liquid-gas interface, realizing the drag reduction. Meanwhile, 98.3% of air can be maintained in the chamber in a flow with Reynolds number ( Re ) of 9 × 10 5 , ensuring the drag reduction in a high-velocity flow. Moreover, the continuous top stainless-steel surface and the supporting mesh network protect the critical re-entrant structures, ensuring the robustness of SMC. With the bioinspired design and one-step additive manufacturing process, SMC holds great potential for large-area production and applications requiring robust drag reduction.
研究领域:
流体力学
·
材料科学
·
仿生工程
✓ 已验证
产品关联
DOI
高影响因子
Journal of Marine Science and Engineering
·
2025
·Vol. 13
·期 3
·568
·
IF 2.8
Zaixiang Zheng,Shutong Wu,Haobo Shu,Qingzhen Han,Pan Cao
Marine biofouling is a major problem that contributes to the failure of man-made marine structures. Conventional marine antifouling coatings that release heavy metal ions for antimicrobial purposes are no longer in line with today’s environmental issues. In this paper, a layer-by-layer (LBL) self-assembled marine antifouling coating based on an addition reaction between polyvinylpyrrolidone (PVP) and phenols to anchor pyrogallic (PG) with an antimicrobial effect on stainless steel surfaces is presented. For this purpose, three phenolics were selected, and their antifouling effects were compared. Field emission scanning electron microscopy, contact angle measurement, X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared spectroscopy analysis (FTIR) were used to thoroughly characterize the LBLPGs, and the results showed superior homogeneity of the coatings with no significant delamination. Simulated marine antifouling and friction tests showed that the coating inhibitedStaphylococcus aureus(S. aureus),Escherichia coli(E. coli), andPhaeodactylum tricornutum(P. tricornutum) by more than 90% and reduced the friction coefficient of the stainless steel surface from 0.38 to 0.24, demonstrating superior antifouling and friction resistance effects.
研究领域:
材料科学
·
海洋生物学
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2015
·
IF 2.711
Haibin Wang,Eryu Chen,Xianbu Jia,Lijun Liang,Qi Wang
Superhydrophobicity is extensively investigated because of the numerous methods developed for water-repellant interface fabrication. Many suitable functional materials for the production of superhydrophobic surfaces on various substrates are still being explored. In this study, inorganic SiO 2 and organic polytetrafluoroethylene (PTFE) nanoparticles (NPs) are used for a comparative study on the performance of superhydrophobic coating on carbon steel surfaces. The NPs are added to PTFE coating emulsions by physical blending to form coating mixtures. Raw SiO 2 NPs are then hydrophobized using KH-570 and validated by Fourier transform-infrared spectroscopy (FT-IR) and Dynamic Laser Scattering (DLS) grain size analyses. The microstructures of the surfaces are characterized by contact angle (CA) measurements and field emission-scanning electron microscope (FE-SEM) images. The prepared surfaces are subjected to adhesion, hardness, water resistance, and acid/alkali erosion tests. Hydrophobized SiO 2 -filled coating surfaces are found to have better uniformity than raw SiO 2 regardless of their similar maximum static contact angles (SCAs) about 150°. A SCA of 163.1° is obtained on the PTFE NP-filled coating surfaces that have a considerably denser structure than SiO 2 . Thermogravimetric (TG) and differential scanning calorimetry (DSC) analyses reveal that all fabricated surfaces have good thermal stability and tolerate temperatures up to 550 °C. The PTFE NP-filled coating surfaces also exhibit excellent water and acid resistance. A possible mechanism concerning the amount of trapped air is proposed in relation to practical superhydrophobic surface fabrication.
研究领域:
材料科学
·
表面工程
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）