COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2023
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IF 5.2
Yuchi Guo,Zongxue Yu,Haidong Chen,Bokai Peng,Junlei Tang
This study aimed to design a composite epoxy coating HZB/EP with pH-responsive behavior by grafting different material functions. In this approach, ZIF-8 particles were self-assembled on the surface of hydroxyapatite (HAp) through in situ growth, followed by encapsulation of the corrosion inhibitor BTA. Scanning electron microscopy (SEM) analysis of the coating section revealed a significant improvement in the dispersion of HZB in the resin compared to hydroxyapatite (HAp), resulting in a notable reduction in coating defects upon the addition of HZB. Electrochemical impedance spectroscopy (EIS) tests demonstrated that HZB/EP maintained a high low-frequency impedance value even after immersion in a 3.5% NaCl solution for 40 days, exhibiting an impedance magnitude 4–5 orders of magnitude higher than Pure EP. Additionally, scratch and salt spray tests validated the release and action process of the corrosion inhibitor BTA. This study presents a novel strategy for the development of multifunctional anticorrosive coatings.
研究领域:
材料科学
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腐蚀与防护
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高分子化学
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表面工程
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功能材料
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Cong Yang,Wenjie Xu,Xin Meng,Xinlong Shi,Luhua Shao,Xiangliang Zeng,Zhenfei Yang,Sijian Li,Yutang Liu,Xinnian Xia
Giving the coating to exert a powerful active protective effect for metal substrates, such as self-healing property by encapsulating corrosion inhibitor into a pH-responsive release tool, is a crucial way to develop an efficient anticorrosive coating. Here, a pH-responsive hydrophilic controlled release system (BTA@ZIF-8@tannic acid, abbreviated ZBT) based on ZIF-8 for waterborne EP self-healing anticorrosive coating was reported. Encapsulation of BTA into ZIF-8 by a facile one-pot method and the resulting product showed a high loading percentage. The anticorrosion performance of composite coatings was studied by EIS, and the results indicated that ZBT could effectively enhance the protective performance of the coating and endow it with outstanding self-healing performance, in which the |Z| 0.01 Hz was about 2 orders of magnitude higher than that of pure EP coating after 20 days of immersion. The outstanding performance is related to the excellent compatibility of ZBT, the blocking effect of newly produced hydrophobic substances and the corrosion inhibitor and ferric tannate protective films formed on the exposed metal surface. In this work, tannic acid plays a role of killing two birds with one stone in enhancing the corrosion protection performance of the coating. This synergistic strategy opens a new possibility to fabricating excellent anticorrosive coatings with efficient self-healing functionality.
研究领域:
材料科学
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腐蚀科学
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涂层技术
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DOI
高影响因子
International Journal of Electrochemical Science
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2023
·
IF 1.5
Yuwan Tian,Cheng Wen,Chaofang Dong,Gui Wang,Peichang Deng,Guanting Zhou
A low pH-triggered intelligent corrosion inhibitor based on BTA loaded poly(2-diethylaminoethyl methacrylate) (PDEAEMA) microspheres was designed to prevent metal corrosion in a variable pH environment. The average particle size of the microspheres was 3 μm. The microspheres swelled at low pH values and shrank at high pH values, which guarantees pH sensitivity. The BTA release from the intelligent corrosion inhibitor depends on the environment pH value. The electrochemical results revealed that the intelligent corrosion inhibitor exhibited smart and efficient corrosion inhibition performance on steel corrosion, which was attributed to the pH-dependent supply of BTA.
研究领域:
材料科学
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腐蚀与防护
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高分子化学
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DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
·
IF 5.4
Runbo Gu,Zhihui Feng,Tianyi Chen,Shusen Peng,Yongcun Ma
Nickel electroplating is a critical surface treatment technology that provides essential corrosion protection and ensures high electrical conductivity, both vital for maintaining the structural integrity and operational safety of modern metal components. However, inherent micropores within the plated layer can compromise its protective function and accelerate substrate corrosion. In this study, we present a novel, environmentally friendly, chromium-free sealing strategy based on an aminotrimethylene phosphonic acid (ATMP)-Zn²⁺ system, synergistically enhanced with benzotriazole (BTA). The specially formulated sealing bath selectively reacts with substrate exposed at pore bottoms while remaining inert to the sound nickel surface, allowing targeted pore filling through strong –PO(OH)₂–metal interactions. The resulting coating significantly reduces porosity (from 13.3 ± 1.6 cm⁻² to 1.7 ± 0.9 cm⁻²), maintains excellent electrical conductivity, and endures 2 h of neutral salt spray without corrosion. XPS and FTIR analyses confirm BTA’s synergistic role via N-H⁺···⁻O-P bonds and the optimized P-O-M coordination. This environmentally friendly approach offers a high-performance sealing solution that preserves the functional properties of Ni electroplating layers.
研究领域:
材料科学
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表面工程
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腐蚀与防护
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电化学
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功能涂层
✓ 已验证
产品关联
DOI
高影响因子
ANTI-CORROSION METHODS AND MATERIALS
·
2025
·
IF 2.6
Jiahui Liu,Jihui Wang,Fei Xue,Yu Su,Xiao Li
Purpose The purpose of this paper is to prepare smart coatings with self-healing and self-reporting dual functionalities. Design/methodology/approach Benzotriazole (BTA) and 1,10-phenanthroline-5-amine (APhen) were encapsulated within mesoporous silica nanocontainers (MSN) via one-step method. Then, BTA+APhen@MSN were mixed with epoxy for preparing BTA+APhen@MSN/EP coatings. The microstructure, structure and sustained-release properties of BTA+APhen@MSN nanocontainers were investigated by transmission electron microscopy, Fourier-transform infrared spectroscopy, Brunauer–Emmett–Teller analysis and UV-Vis spectroscopy. The warning performance and corrosion resistance of BTA+APhen@MSN/EP coatings were characterized by optical microscopy and electrochemical impedance spectroscopy. Findings BTA+APhen@MSN exhibit higher corrosion inhibitors loading capacity (31.2 wt.%) and higher corrosion inhibition efficiency (53.07%) than BTA@MSN and APhen@MSN. The BTA+APhen@MSN/EP coatings show excellent self-healing performance. After soaking in 3.5 wt.% NaCl solution for five days, the fitted resistance of scratched coatings increased by 18%. The BTA+APhen@MSN/EP coatings also show superior self-reporting capability, which can provide a warning of coating damage within 30 min by a visible color change. Originality/value The corrosion inhibitors and corrosion warning agent are encapsulated in a nanocontainer to prepare multifunctional nanocomposite. This multifunctional nanocomposite presents a new approach for designing smart coatings with self-healing and self-reporting dual functionalities.
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高影响因子
PROGRESS IN ORGANIC COATINGS
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2019
·
IF 3.42
Shan Wan,Chun-Hui Miao,Ruo-Min Wang,Ze-Fan Zhang,Ze-Hua Dong
Conductive polypyrrole (PPy) composite films were electrodeposited on copper together with BTA or/and silica by cyclic voltammetry in salicylate solution. The corrosion resistance and electrical conductivity of the composite films were assessed by use of polarisation curves, open circuit potential (OCP) measurements and electrochemical impedance spectroscopy in 5 wt% NaCl solution. It was found that the sole doping of benzotriazole (BTA) or silica in PPy film merely improved corrosion resistance slightly, but the codoping of BTA and silica in PPy film can significantly enhance the corrosion resistance and electrical conductivity of the composite film. Salt spraying test (SST) confirmed that the ternary composite film exhibited the best anti-corrosion performance and durability, which was attributed to the synergetic effect from the physical barrier of silica and the active protection of BTA inhibitor.
研究领域:
材料科学
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电化学
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产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2023
·
IF 5.2
Zhuo Xiang,Libo Tong,Miaomiao Li,Xiangjun Li,Meng Ju,Wanting Sun,Bing Zhang,Kuaishe Wang
Conventional surface coatings exhibit poor self-healing ability, especially under the acid corrosion conditions, which is regarded as a huge challenge for the effective protection of Mg alloy . In this study, a smart self-healing hybrid coating is facilely fabricated, providing an excellent long-term anti-corrosion performance for Mg alloys within the harsh environments. Mesoporous silica (MS) loaded with corrosion inhibitor benzotriazole (BTA) is grafted onto the surface of graphene oxide (GO), to synthesize GO-based nanomaterials , which can be uniformly dispersed in the epoxy (EP) coating through ring opening reaction and form the covalent bonds . Electrochemical Impedance Spectroscopy (EIS) results show that the modulus of the EP-GO-MS-BTA hybrid coating remains at 2.57 × 10 11 Ω cm 2 after immersion in 3.5 wt% NaCl solution for 15 days. In contrast to previously reported works that achieved the self-healing ability in acidity, the current EP-GO-MS-BTA coating represents an ultra-high self-healing efficiency of 1.2 × 10 8 Ω cm 2 h −1 under acid 3.5 wt% NaCl condition (pH = 3). Due to the labyrinth effect, the impermeability of epoxy coating is enhanced by the ameliorative dispersity of GO sheet. In addition, the as-prepared GO-based nanomaterial can be used to load corrosion inhibitor BTA and possess H + ion-responsive release property, leading to an improved corrosion protection . Combining the dual effects of superior GO dispersion and smart self-healing, it will provide a green and convenient synthetic method for constructing self-healing coatings with the excellent anticorrosion resistance.
研究领域:
材料科学
·
腐蚀与防护
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产品关联
DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2026
·
IF 7.3
Xiaohua Chen,Hongzhi Cui,Lingyun Tang,Jinlai Yang,Cheng Man
Motivated by the demand for enhanced coating toughness and self-healing capabilities in polar low-temperature environments, a pH-responsive active filler, which was named as PDA@BTA@MOF, was synthesized through the layer-by-layer self-assembly of a metal–organic framework (MOF), benzotriazole (BTA) corrosion inhibitor molecules, and polydopamine (PDA). And then, the obtained fillers denoted as, was incorporated into an epoxy resin to prepare a composite coating (termed the PDA coating) that exhibited superior toughness and excellent low-temperature corrosion protection. Physicochemical characterization revealed that the PDA@BTA@MOF filler possesses a core-shell structure with cubic BTA@MOF as the core and PDA nanoparticles forming the shell, and the special structure ensure that the PDA@BTA@MOF filler could uniformly disperse within the PDA coating matrix. The active filler could significantly enhance the toughness, barrier properties against corrosive media penetration, and adhesion under various conditions of the PDA coating, primarily attributed to mechanisms such as the “pinning effect”. Electrochemical impedance spectroscopy (EIS) and salt spray tests reveals that the PDA coating containing PDA@BTA@MOF filler possesses more excellent anti-corrosion resistance that the pure epoxy coating (EP coating). Even under harsh alternating freeze-salt spray test conditions, where the diffusion of corrosive media through the is coating significantly accelerated and adhesion was substantially degraded, the PDA coating maintained remarkable protective efficacy. Furthermore, immersion tests and EIS analysis on scratched samples confirmed the pH-responsive release behavior of the PDA@BTA@MOF particles and the effective self-healing functionality of the PDA coating.
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产品关联
DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2022
·
IF 6.206
Jingxia Yang,Bingjie Zou,Qing Fang,Jinjie Wang,Lidong Wang
To figure out the behavior of benzotriazole (BTA) loaded in CeO 2 nanocontainers during long term anticorrosion, three kinds of CeO 2 spheres were used: hollow spheres ( HS s), double-shell hollow spheres ( DHS s), and solid-mesoporous spheres ( SS s). The BTA loading and releasing situations were checked, and CeO 2 - HS s exhibited the largest BTA loading amount of 12.5 wt%, forming by both chemical and physical adsorption. The highest BTA loading in CeO 2 - HS s may be attributed to its hollow structure and more Ce 3+ sites (39 %) for BTA anchoring. Thus, CeO 2 - HS s@BTA exhibited an excellent long-term anticorrosion in epoxy coating for low carbon steel protection, showing no rusting after 40 days of salt spray experiment.
研究领域:
材料科学
·
腐蚀与防护
✓ 已验证
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2023
·
IF 5.2
Jiaojiao Cao,Chengbin Guo,Zhenyu Chen
A series of MOF-5 @BTA-X (X = -CH 3 /-NH 2 /-CO(CH 2 ) 6 CH 3 ) anticorrosion composites was fabricated through loading benzotriazole derivatives in a metal–organic framework (i.e., MOF-5). Their crystal structures and morphologies were characterized by single-crystal X-ray diffraction analysis, Fourier transform infrared spectroscopy , and transmission electron microscopy . The loading–releasing mechanisms between MOF-5 and BTA derivatives were revealed by experiments and theoretical calculations. Their anticorrosion performance for copper was also evaluated by electrochemical impedance spectroscopy and potentiodynamic polarization in 0.5 M NaCl. The corrosion product was analyzed via scanning electron microscopy and X-ray photoelectron spectroscopy. The results indicated that the loading capacities followed the order of MOF-5 @BTA-NH 2 > MOF-5 @BTA-CH 3 > MOF-5 @BTA-CO(CH 2 ) 6 CH 3 . The release rates followed the order of MOF-5 @BTA-NH 2 < MOF-5 @BTA-CH 3 < MOF-5 @BTA-CO(CH 2 ) 6 CH 3 . Furthermore, the results of theoretical calculations indicated that the differences in loading capacities depended on the polarity of the functional group. Meanwhile, the strong binding force decreased the release rate.
研究领域:
材料科学
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腐蚀防护
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纳米复合材料
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理论化学
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电化学
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DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2026
·Vol. 61
·期 34
·25602-25621
·
IF 4.4
Li Han,Wang Baichen,Lu Shaowei,Li Wei
Researchers have developed a novel anticorrosion particle, denoted as CPAM@Co/Ni MOF@BTA (CMB). In this system, benzotriazole (BTA) acts as a corrosion inhibitor and is incorporated into the Co/Ni MOF framework through an in-situ host–guest nano-confinement strategy. Meanwhile, cationic polyacrylamide (CPAM) serves as cladding layer and is electrostatically assembled onto the surface of Co/Ni MOF@BTA. The composite coating was prepared by dispersing these particles into an epoxy resin matrix. In immersion tests, the coating was found to effectively enhance the corrosion resistance of Q235 steel in a sodium chloride medium, with impedance remaining as high as 2.24 × 10 5 Ω·cm 2 after 45 days of exposure. In polarization measurements, a corrosion current density as low as 5.294 × 10 –10 A/cm 2 was observed, indicating a pronounced anodic inhibition effect. In scratch tests, a distinct self-healing capability was also demonstrated. These results confirm that the incorporation of CMB particles significantly improves the passive corrosion resistance of epoxy coatings and imparts self-healing properties.
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产品关联
DOI
高影响因子
TRIBOLOGY INTERNATIONAL
·
2025
·
IF 6.9
Yi Zhou,Min Zhong,Guoxin Xie,Meirong Yi,Xiaobing Li,Jianfeng Chen,Wenhu Xu
Cobalt (Co) as an emerging interconnect solution for integrated circuits (ICs) is prone to corrosion during chemical mechanical polishing (CMP). However, traditional inhibitors are toxic and inefficient, making the development of non-toxic and highly efficient inhibitors urgent. This study reports for the first time that the antihypertensive drug Losartan exhibits excellent performance in balancing corrosion protection and polishing efficiency in Co CMP processes. Polishing experiments and Atomic Force Microscope (AFM) tests reveal that Losartan enhances the material removal rate (MRR) while improving surface integrity relative to Benztriazole (BTA). Electrochemical tests, adsorption isotherms, X-ray photoelectron spectroscopy (XPS), and scanning electron microscopy (SEM) confirm that Losartan's comprehensive performance as a new organic inhibitor surpasses that of BTA. Energy dispersive spectroscopy (EDS) results indicate that Losartan forms a dense protective adsorption film on the Co surface. Density functional theory (DFT) reveals Losartan’s multisite adsorption on the Co surface through various sites of nitrogen, oxygen, and chlorine atoms. It theoretically explains that its corrosion inhibition effect is superior to BTA. This study provides reference for choosing green and effective corrosion inhibitor for Co CMP.
研究领域:
材料科学
·
微电子制造
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表面工程
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电化学
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计算化学
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半导体工艺
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）