POLYMER
·
2021
·
IF 4.43
Fengyuan Zhang,Weiqu Liu,Shuo Wang,Hongyi Shi,Chunhua Liu,Liyan Liang,Ke Pi
MXenes (Ti 3 C 2 T x ), an emerging two-dimensional (2D) material, derived from MAX phases, may have outstanding corrosion resistance performance due to its sheet property. However, pristine Ti 3 C 2 T x is inappropriate to be used directly as an anti-corrosion filler, owing to the existence of hydrophilic groups. Herein, few-layered Ti 3 C 2 T x sheets were modified via TiO 2 . Then functional Ti 3 C 2 T x (Ti 3 C 2 &TiO 2 ) was introduced to the waterborne polyurethane (WPU) coating. Finally, the corrosion resistance of the prepared composite coating was studied in detail. The results revealed that containing 0.1 wt%Ti 3 C 2 &TiO 2 composite coating has excellent corrosion resistant performance. After 28 days' immersion, the lowest frequency impedance of WPU/0.1%Ti 3 C 2 &TiO 2 composite coating was 6.64 × 10 7 Ω cm 2 , which was higher than that of WPU coating (3.48 × 10 6 Ω cm 2 ). After 110 days’ immersion, the lowest frequency impedance of WPU/0.1%Ti 3 C 2 &TiO 2 composite coating was 1.75 × 10 6 Ω cm 2 . Furthermore, the results of Tafel curves demonstrated that the corrosion current and corrosion rate of WPU/0.1%Ti 3 C 2 &TiO 2 composite coating were the lowest. That were 2.79 × 10 −9 A/cm 2 and 3.25 × 10 −5 mm/year, respectively. In conclusion, this work extended the great application prospects of functional Ti 3 C 2 T x sheets in the fields of anti-corrosion.
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
Polymers
·
2021
·Vol. 13
·期 2
·183
·
IF 4.329
Xiaoyan Liu,Handuo Jie,Ruidan Liu,Yanqi Liu,Tianyu Li,Kai Lyu
Due to its special two-dimensional lamellar structure, graphene possesses an excellent shielding effect, hydrophobic characteristics and large specific surface area, which can effectively isolate the internal structure from the external corrosive media. However, lamellar graphene is easy to stack and agglomerate, which limits its anti-corrosion performance. In this paper, cerium oxide-graphene oxide (CeO2-GO) nanocomposites were prepared by a hydrothermal synthesis method. Field emission scanning electron microscope (FESEM) and transmission electron microscope (TEM) were applied for microstructure examination, showing that a large number of nanoscale granular cerium oxide grew on the lamellar graphene oxide surface, which improved the dispersion performance of graphene inside the matrix. The anti-corrosion properties of the coating were analyzed and illustrated by open circuit potential (OCP), frequency response analysis, Tafel curve and Mott–Schottky curve. The results indicated that the CeO2-GO (4:1) nanocomposite not only eliminated the agglomeration of graphene to some extent, but also prepared the graphene epoxy coating with good dispersion, which further promoted its anti-corrosion performance. The paper proposed a feasible solution for GO dispersion in cement-based materials and lays a solid theoretical foundation for the engineering application of cerium oxide-graphene oxide modified anticorrosive coating.Keywords:CeO2;GO;CeO2-GO;dispersion;anti-corrosion performance
研究领域:
材料科学
·
腐蚀与防护
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Coatings
·
2025
·Vol. 15
·期 3
·271
·
IF 2.8
Yong Yao,Weitao Huang,Mumin Rao,Yang Cao,Congshu Huang,Yu Liang,Canxing Tan,Yeqiang Mo
The main load-bearing structure of offshore wind power is mainly metal, and the corrosion of metal structures is particularly serious when exposed to corrosive environments, such as high salt and humidity for a long period of time and has attracted more and more attention from researchers at home and abroad. Epoxy resin is used as a matrix resin in both primer and middle coatings. In anti-corrosion coatings, when additives are added to the epoxy system, the affinity and hydrophobicity of the additives themselves affect the protective effect of the system. In this study, the effects of two additives, BIB (containing hydrophilic groups) and HFTC (containing both hydrophilic and hydrophobic groups), on the corrosion protection properties of epoxy adhesives were investigated. The impact of these additives on the contact angle, water absorption rate, salt spray resistance, and overall corrosion resistance was evaluated using various experimental methods. The results show that the BIB additive is not conducive to the enhancement of epoxy coatings’ anti-corrosive properties due to its good hydrophilicity. The addition of HFTC can effectively improve the protective performance of the coating, and when the addition of HFTC is 0.6%, the salt spray resistance of the composite coating is optimized. This study provides valuable insights into the optimization of epoxy systems for enhanced corrosion protection in marine environments.
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
Polymers
·
2018
·Vol. 10
·期 10
·1097
·
IF 2.935
Zhicheng Wang,Shuping Nie,Ru Xia,Yang Lv,Ming Cao,Ming Chen,Qiannian Dong,Lifen Su,Peng Chen,Bin Yang,Jibin Miao,Zhengzhi Zheng,Jiasheng Qian
Colorization for fabricating aluminum pigments has broad application prospects in recent years. In this study, yellow-colored aluminum pigments with the double-layer structure Al@SiO2@PFMV were prepared using a sol-gel method. A crosslinked copolymeric dye (PFMV) was firstly synthesized by radical polymerization using vinyl triethoxysilane (VTES) and a small molecular dye (FGMAC) as monomers. Then, colored aluminum pigments were prepared by hydrolysis and condensation of the copolymers on the surface of aluminum pigments. SEM, AFM, FTIR, and XPS were used to characterize the surface morphology and chemical structure of the colored aluminum pigments. It was found that the colored aluminum pigments have a heterogeneous and smooth surface layer. The anticorrosion results showed that the colored aluminum pigments had better chemical stability with significantly improving corrosion resistance compared to raw aluminum pigments and Al@SiO2with the single-layer coating. Chromatism analysis indicated that the lightness of Al@SiO2@PFMV pigments decreased slightly and the color changed from silver-gray to yellow.Keywords:aluminum pigments;crosslinked copolymeric dye;corrosion resistance
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
RUSSIAN JOURNAL OF APPLIED CHEMISTRY
·
2019
·Vol. 91
·期 12
·2058-2064
·
IF 0.508
Zhan Yingqing,Zhao Rui,He Shuangjiang,Zhao Shumei,Xue Weidong
Development of novel corrosion inhibitors is important for improving the anticorrosion of carbon steel because the serious carbon steel corrosion causes enormous economic losses to humankind. In this work, we demonstrated the novel organic functionalized Fe 3 O 4 hybrid inhibitor for enhancing the anticorrosion performance of carbon steel. For this purpose, amino-Fe 3 O 4 nano-spheres (NH2–Fe 3 O 4 ) were prepared via solvothermal route, using FeCl 3 .6H 2 O as an iron source and 3-aminophenoxy-phthalonitrile as precursor. Then, the N,N-diethyl-3-amine methyl propionate (DM) was reacted with amino-Fe 3 O 4 nano-spheres to produce the organic functionalized nano-Fe 3 O 4 hybrid. The chemical composition and micro-structure of as-obtained organic functionalized Fe 3 O 4 hybrid were characterized and confirmed by Fourier transform infrared, X-ray diffraction, and scanning electron microscopy. Furthermore, the anticorrosion performance of carbon steel by addition of organic functionalized nano-Fe 3 O 4 inhibitor was investigated by AC impedance measurements and polarization curves. The research results showed that the organic functionalized nano-Fe 3 O 4 exhibited enhanced inhibition effect for carbon steel, which can be used as a new type of carbon steel corrosion inhibitor.
研究领域:
材料科学
·
腐蚀与防护
✓ 已验证
DOI
高影响因子
Materials
·
2019
·Vol. 13
·期 1
·111
·
IF 2.972
Xia Zhao,Shuai Yuan,Zuquan Jin,Binbin Zhang,Nazhen Liu,Shibo Chen,Shuan Liu,Xiaolin Sun,Jizhou Duan
Given their outstanding versatile properties, multilayered anticorrosion coatings have drawn great interest from researchers in the academic and engineering fields. However, the application of multilayered coatings is restricted by some limitations such as low interlayer compatibilities, the harsh preparation process, etc. This work introduced a composite film fabricated on a 2A12 aluminum alloy surface, including an anodic oxide film, a sol–gel film, and a layer-by-layer (LBL) self-assembling film from bottom to top. The microstructure and elemental characterization indicated that the finish of the coating with the LBL film resulted in a closely connected multilayered coating with a smoother surface. The anticorrosion performance was systematically evaluated in the simulated corrosive medium and neutral salt spray environment. The integrated coating with the LBL film presented an excellent anticorrosion ability with system impedance over 108Ω·cm2and a self-corrosion current density two orders of magnitude lower than that of the other coatings. After the acceleration test in a salt spray environment, the multilayered coatings could still show a good protective performance with almost no cracks and no penetration of chloride ions. It is believed that the as-constructed multilayered coating with high corrosive properties and a fine surface state will have promising applications in the field of anticorrosion engineering.Keywords:multilayer;corrosion;impedance;layer-by-layer
研究领域:
材料科学
·
腐蚀与防护
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2022
·
IF 6.371
Xiaoguang Sun,Chengcheng Ma,Fubin Ma,Tong Wang,Chao Feng,Wei Wang
The self-healing performance of anticorrosive coatings is critical to restoring their protective function in the event of failure to ensure durability in harsh corrosive conditions. In this work, a novel self-healing anticorrosive coating was fabricated by two-dimensional transition metal carbides and carbonitrides (MXenes) and mesoporous silica nanoparticles (MSNs) loading tannic acid (TA) as corrosion inhibitors that can effectively protect low-carbon steel from corrosion damage. The TA as corrosion inhibitors were loaded into the mesoporous silica nanoparticles, and the loading capacity reached about 71.71%. The synthesized epoxy/TA@MXene-SiO 2 coating was characterized in detail using different tools. The epoxy/TA@MXene-SiO 2 coating had excellent anticorrosive performance and an impedance modulus of 2.826 × 10 6 Ω cm 2 at 0.01 Hz. The impedance modulus reached the maximum peak value of 8.585 × 10 6 Ω cm 2 after 132 h of continuous immersion. In addition, the TA made a coating with an electrochemical self-healing efficiency of 114.27 kΩ cm 2 h −1 . This work provides insight into the novel design of anticorrosive coatings with excellent anticorrosive performance and high self-healing efficiency.
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
JOURNAL OF APPLIED POLYMER SCIENCE
·
2024
·
IF 2.7
Yongning Ma,Panpan Li,Peihan Wu,Mingyuan Guo,Yuhao Yang,Xiaolong Li
In photocatalytic anticorrosion perspective, the migration rate of excited electrons from surface layers to substrate steels restricted the performance of g-C 3 N 4 due to the high resistance between interface of g-C 3 N 4 layers and adhesive layers. Herein, an S-scheme g-C 3 N 4 /polyaniline (PANI) heterojunction with face-to-face structure was established by a secondary calcining method. The as-prepared heterojunctions were applied to protect Q235 carbon steel, and the results showed that the anticorrosion performance of S-scheme g-C 3 N 4 /PANI heterojunction is much higher than that of g-C 3 N 4 and PANI coating layers according to salt spray test. Photocurrent intensity indicated that the optimum amounts of g-C 3 N 4 and PANI were 0.06 and 0.09 mL/cm 2 , which are benefit for the transport of excited electrons due to the optimum thickness of coating layers. Furthermore, the S-scheme g-C 3 N 4 /PANI heterojunction can promote the separation rate of charge carriers and suppress the recombination rate at the same time, which are inferred from photocurrent intensity, electrochemical impedance spectra, super-depth-of-field microscope, and photoluminescence investigation. In the last, the enhanced anticorrosion performance of S-scheme g-C 3 N 4 /PANI heterojunction with face-to-face structure was deduced according to mentioned characterization.
研究领域:
材料科学
·
腐蚀与防护
·
光催化
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2020
·
IF 6.182
Yan Nie,Jiankun Huang,Shengyan Ma,Zhichao Li,Yongkang Shi,Xiaofang Yang,Xin Fang,Jingbin Zeng,Pengyu Bi,Jiantao Qi,Shengjie Wang,Yongqing Xia,Tifeng Jiao,Dongxiang Li,Meiwen Cao
Silanization is an effective green and pollution-free technology for metal surface treatment. However, the silane film is usually lack of anticorrosion durability due to low mechanical strength and existence of microdefects. In the present study, two-dimensional MXene (Ti 3 C 2 ) sheets have been hybridized into the γ-glycidoxypropyltrimethoxysilane (γ-GPS) film on AA2024 aluminum alloy surface to improve the anticorrosion property. MXene hybridization greatly enhanced the thickness and compactness of the silane film, producing uniform and dense films with fewer defects. The composite films also showed excellent adhesion to the substrate through Si-O-Al chemical bonding. The films inhibited both anode and cathode corrosions by reducing the corrosion current density as well as the diffusion rate of corrosion solution to metal surface. The neutral salt spray tests showed that the corrosion resistance of the MXene-hybridized silane film was better than that of the film obtained by traditional chromate treatment. Moreover, the composite films exhibited excellent antibacterial property by having MXene in the film for killing bacteria. The study develops a simple and effective strategy to improve the anticorrosion property of the silane film as well as to introduce antimicrobial ability, which is highly promising for practical applications in the industrial, medical and domestic fields.
研究领域:
材料科学
·
表面工程
·
腐蚀与防护
✓ 已验证
DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2019
·
IF 3.42
Chunlin Chen,Yi He,Guoqing Xiao,Fei Zhong,Yunqing Xia,Youqing Wu
The application of graphene (Gr) in waterborne coatings is restricted owing to its strong hydrophobic properties. Herein, graphitic (g)-C 3 N 4 , also with good barrier properties, has been used for the first time to disperse Gr in epoxy solution via simple ultrasonic vibration. The morphologies and structures of g-C 3 N 4 and Gr/g-C 3 N 4 were characterized through FT-IR, XRD, XPS, UV–vis absorption spectra, TEM and Raman spectra. Corrosion resistance performances of the g-C 3 N 4 /epoxy and Gr/g-C 3 N 4 /epoxy nanocomposites coatings were evaluated by electrochemical impedance spectroscopy (EIS) and salt spray tests. Gr/g-C 3 N 4 /epoxy nanocomposites coating exhibits improved anti-corrosion performance in contrast to g-C 3 N 4 /epoxy coating due to enhanced barrier performances.
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
PROGRESS IN ORGANIC COATINGS
·
2022
·
IF 6.206
Haihua Wang,Guangyu Hu,Xuan Liu,Liyuan Guo,Xiaorui Li,Ruiyuan Guo,Yanyu Li
The uniform dispersion and long-term stability of hydrophobic polyaniline (PANI) in waterborne polymer matrix always remains a challenge. Here, PANI was chemically modified by 1,12-dibromododecane to prepare functionalized PANI (PANI-12Br(II)), and simultaneously achieve N-alkylation and chemical crosslinking of PANI chains. In addition, 1-bromododecane was utilized to modify PANI to prepare PANI-12Br(I) as a control. The degree of alkylation of PANI-12Br(II) was higher than that of PANI-12Br(I), as well as the content of N + species in PANI-12Br(II). Also, the interaction between the PANI-12Br(II) chains decreased. The colloidal particle size decreased from 703.9 nm to 297.3 nm, and the dispersibility and long-term colloidal stability of PANI-12Br(II) in aqueous system were significantly improved. The water adsorption of as-prepared PANI-12Br(II)/WAR nanocomposite decreased from 18.37% to 4.27%, and the contact angle increased from 63.4° to 112.5°. Compared with WAR and PANI/WAR-0.5%, the coating resistance of PANI-12Br(II)/WAR-0.5% increased by 5 and 4 orders of magnitude, and the corrosion current density decreased by 3 and 2 orders of magnitude. The PANI-12Br(II)/WAR-0.5% displayed better long-term anticorrosive performance than PANI-12Br(I)/WAR-0.5%. The anticorrosive mechanisms were also put forward. The PANI-12Br(II) can be applied as a promising class of corrosion inhibitors in waterborne polymer matrices.
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
International Journal of Electrochemical Science
·
2023
·
IF 1.5
Yuwei Ye,Wei Liu,Zhiyong Liu,Haichao Zhao,Liping Wang
Novel trianiline-containing sol-gel hybrid coatings were prepared by one-step electrodeposition technology on the surface of Q235 steel. The chemical component, microstructure of the as-prepared coatings were measured by FTIR, UV-vis, SEM. The effects of deposition time on the thickness, contact angle (CA) and surface roughness of coatings were investigated. The results showed that the modified silica coatings exhibited an excellent hydrophobic nature. By comparing with various deposition times (100, 300, 500, 700 s) under the deposition potential of -1.5 V, the coating under the deposition time of 500 s presented the best anti-corrosion effectiveness for bare steel substrate in 3.5 wt.% NaCl solution as verified by Tafel curves and electrochemical impedance spectroscopy (EIS).
研究领域:
材料科学
·
电化学
✓ 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）