CORROSION SCIENCE
·
2023
·
IF 8.3
Shupei Liu,Xinfang Zhang,Jinsong Rao,Liang Yu,Wei Lu,Huan Zhou,Shibo Chen,Yuxin Zhang,Xiaoying Liu
Ni-Co Layered Double Hydroxide (LDH) shows great application potential in the field of anti-corrosion. However, the poor carrying capacity limits the performance of anticorrosion performance. In this study, Ni-Co hydrotalcite was grown on the surface of DE, and Ni-Co/DE@SP microcapsule with corrosion inhibitor loading up to 14.7% was successfully prepared. The adsorption capacity of Ni-Co/DE@SP for Cl − in 600 mmol/L NaCl solution was 6.72 mmol/g. It is worth noting that the impedance modulus of the prepared composite coating (EP/Ni-Co/DE@SP) is two orders of magnitude higher than that of the pure resin coating, and the wear resistance was improved by 33%.
研究领域:
材料科学
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腐蚀与防护
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表面工程
✓ 已验证
产品关联
DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2023
·
IF 6.6
Peng Xiao,Nianting Chen,Jianjun Liu,Liheng Yang,Dabing Chen,Minjie Shi
Designing suitable additive materials for high-performance anti-corrosion coatings continues to be a formidable obstacle. Although imine molecules are a promising family of organic compounds due to the π-conjugated aromatic structure containing N heteroatoms, their research as the anticorrosive additives is still in its early stages. Herein, we have prepared a rod-like imine molecule, Hexaazatrinaphthalene (HATN), which was further assembled with reduced graphene oxide (rGO) to obtain a novel HATN/rGO composite via a facile electrostatic self-assembly. As such, the HATN/rGO composite as additive material was incorporated into epoxy resin to develop a corrosion-resistant HATN/rGO epoxy coating, showing exceptional passive and active anti-corrosion properties with a low corrosion rate of 5.75 × 10 −6 mm a −1 and a high corrosion inhibition efficiency of 99.83 %. Remarkably, the resistance at 0.01 Hz value of HATN/rGO epoxy coating is superior to those of rGO-based epoxy coatings previously reported. Scanning vibrating electrode technique (SVET) and salt spray measurements further demonstrate long-term performance of the HATN/rGO epoxy coating with excellent corrosion resistance. Additionally, theoretical calculation proves that the obvious electron transfer from rGO to HATN molecule promotes charge-transfer capability and electrochemical activity of the HATN/rGO composite, suggesting its great potential as the additive material for high-performance corrosion protection .
研究领域:
材料科学
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化学工程
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DOI
高影响因子
RSC Advances
·
2013
·Vol. 3
·期 44
·21715-21721
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IF 2.562
Zenghong Song,Meirong Cai,Yongmin Liang,Mingjin Fan,Feng Zhou,Weimin Liu
Methoxy tris-ethoxy methylene benzotriazole (BTAG3) was synthesized and has good solubility in multiply-alkylated cyclopentanes (MACs) only when equal molar ratios of lithium salts, LiBF4, LiPF6, LiSO3CF3 or LiTFSI, were co-added into MACs due to the formation of ionic liquids (ILs), [Li(BTAG3)]BF4, [Li(BTAG3)]PF6, [Li(BTAG3)]SO3CF3 and [Li(BTAG3)]TFSI. The as-synthesized ILs have better solubilities in MACs than the conventional imidazolium ILs, 1-octyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide (L-F108) and 1-butyl-3-methylimidazolium tetrafluoroborate (L-B104) or the unfunctionalized lithium-based IL, [Li(G3)]TFSI, which are insoluble in MACs. They were evaluated as anti-wear and anti-corrosion additive of MACs for steel–steel contact at room temperature (RT). It was found that the ILs possessed excellent friction-reducing and anti-wear properties in MACs compared with zinc dialkyldithiophosphate. Besides, the presence of benzotriazole means that these synthetic ILs have good anti-corrosion properties compared with the conventional IL, L-B104.
研究领域:
化学工程
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
Surfaces and Interfaces
·
2025
·
IF 6.3
Yue Zhao,Da-Peng Wang,Guang-Long Zhang,Jin-Wei Zhang,Ji-Yong Zheng,Cun-Guo Lin
In this work, the carbon-based 2D-3D composite nanocontainers endowing coatings with both active and passive protection properties were constructed by the sp 2 /sp 3 hybridized carbon as a versatile strategy. The classic graphene oxide (GO, sp 2 C) and Covalent Organic Framework-300 (COF-300, sp 3 C) were chosen as examples and benzotriazole (BTA) as the inhibitor to fabricate the GO/COF-300@BTA nanocontainer. The composite nanocontainers embedded in polyvinyl butyral (PVB) coatings were applied on cupper substrates to get mechanical enhancement, active and passive corrosion protection performance. The tensile strength of GO/COF-300/PVB (12.38 Mpa) was two times higher than that pure PVB (5.96 MPa). The active protection performance was ensured by the corrosion inhibitors encapsulated in the 3D porous carbon skeleton. The passive protection performance was endowed by the maze effect of the 2D carbon-based nanosheets. The |Z| 0.01 Hz of Cu/(GO/COF-300@BTA)/PVB was higher than 10 9 Ω·cm 2 , which was two magnitudes larger than that of PVB coating, demonstrating the anti-corrosion properties. In addition, the quantum chemical calculation and molecular dynamics simulation results elaborated the adsorption states of BTA on copper substrate and the compatibility between the molecular chains of the PVB and the GO/COF-300 nanocontainer.
研究领域:
材料科学
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腐蚀与防护
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表面工程
✓ 已验证
产品关联
DOI
高影响因子
COMPOSITES COMMUNICATIONS
·
2022
·
IF 7.685
Jinming Piao,Wei Wang,Lin Cao,Xude Qin,Tong Wang,Shougang Chen
A nanofiber composite coating with self-healing and anticorrosive properties is reported in this work. We successfully encapsulated Ibuprofen and 2-Mercaptobenzothiazole into the Polyvinylidene fluoride nanofibers by electrospinning. Electrochemical impedance spectroscopy (EIS) tests indicate that low-frequency impedance of the scratched coating maintains 10 9 Ω cm 2 within 64 days. The coating exhibits an excellent long-term corrosive resistance and a rapid self-healing performance due to the synergistic effect of multicomponent self-healing factors, which have significant application prospects in the field of marine corrosion protection .
研究领域:
材料科学
·
腐蚀与防护
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海洋工程
✓ 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
·
2022
·Vol. 12
·期 4
·447
·
IF 3.236
Yingxiang Ma,Dan Jiang,Yuping Yang,Li Ma,Jian Zhou,Guosheng Huang
In this study, the urea-formaldehyde (UF)-tung oil solution of phenolic amide (PA) microcapsules to realize anti-fouling and anti-corrosion integration was synthesized by the in situ polymerization method. The compounds and structures were optimized by investigating six kinds of different emulsifiers. The results showed that high-core-content and narrow-particle-size-distribution microcapsules could be synthesized with sodium dodecyl benzene sulfonate (SDBS)/polyvinyl alcohol (PVA), and the core content of the microcapsules was 75 wt% at microcapsule sizes from 24.07 to 71.33 µm. The results of self-healing coatings showed that when the content of microcapsules in the coating exceeded 10 wt%, the healing agent released from the scratched surface could cover the naked metal effectively, which could pass a 7 day neutral salt spray test without rust at the scratched area. A sufficient dose anti-fouling agent can be provided to prevent diatoms and mussels from adhering. The present work shows that the complex emulsifier can better control the particle size distribution and microstructure of the microcapsules, and the admixture of the microcapsules into the resin epoxy coating can realize excellent anti-corrosion and anti-fouling functions.Keywords:self-healing;microcapsules;anti-corrosion;anti-fouling
研究领域:
材料科学
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化学工程
✓ 已验证
产品关联
DOI
高影响因子
Polymers
·
2022
·Vol. 14
·期 7
·1412
·
IF 4.967
Kai Lyu,Xiaoyan Liu,Ruidan Liu,Heng Yang,Yang Qiao,Surendra P. Shah
In the marine service environment, metal materials have a serious risk of corrosion. The corrosion rate of metal materials will be accelerated by the dual action of temperature change and alkali salt in saline-alkali environment. In order to delay the metal materials’ corrosion rate and prolong their service life, this paper used a CeO2–GO (4:1) nanocomposite prepared by the hydrothermal synthesis method to make an anticorrosion coating. The anticorrosion performance was evaluated by stereo microscope and 3D images of the corrosion site were fitted for calculation. The state evolution of the CeO2–GO (4:1)/EP coating immerged in a simulated saline-alkali solution was studied by open circuit potential (OCP), electrochemical alternating current impedance spectroscopy (EIS), Mott–Schottky curve and Tafel curve. The results indicated that CeO2–GO (4:1) nanocomposites exhibited good resistance compared with graphene oxide and nano cerium oxide in a simulated saline-alkali environment. The research in this paper lays a firm theoretical foundation for the application of nano cerium-oxide-modified graphene oxide anticorrosive coating in saline-alkali environment engineering.Keywords:CeO2–GO;corrosion depth;saline-alkali;anticorrosion
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
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
Foods
·
2021
·Vol. 11
·期 1
·92
·
IF 4.35
Zhiling Tang,Haiming Chen,Ming Zhang,Zhuye Fan,Qiuping Zhong,Weijun Chen,Yong-Huan Yun,Wenxue Chen
Pseudomonas lundensisis the main bacterium responsible for meat spoilage and its control is of great significance. 3-Carene, a natural monoterpene, has been proved to possess antimicrobial activities. This study aimed to investigate the antibacterial activity and mechanism of 3-carene against the meat spoilage bacteriumP. lundensis, and explore its application on pork. After 3-carene treatment, cellular structural changes were observed. Cell walls and membranes were destroyed, resulting in the leakage of alkaline phosphatase and cellular contents. The decreased activity of Ca2+-Mg2+-ATPase and Na+-K+-ATPase showed the imbalance of intracellular ions. Subsequently, adenosine triphosphate (ATP) content and oxidative respiratory metabolism characteristics indicated that 3-carene inhibited the metabolism of the tricarboxylic acid cycle inP. lundensis. The results of binding 3-carene with the vital proteins (MurA, OmpW, and AtpD) related to the formation of the cell wall, the composition of the cell membrane, and the synthesis of ATP further suggested that 3-carene possibly affected the normal function of those proteins. In addition, the growth ofP. lundensisand increase in pH were inhibited in pork during the 5 days of cold storage after the samples were pre-treated with 3-carene. These results show the anti-P. lundensisactivity and mechanism of 3-carene, and its potential use in meat preservation under refrigerated conditions.Keywords:Pseudomonas lundensis;3-carene;preservatives;membrane damage
研究领域:
食品科学
·
微生物学
·
药理学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
COMPOSITES PART B-ENGINEERING
·
2023
·
IF 13.1
Can He,Meng Cai,Yu Huang,Xiaoqiang Fan,Minhao Zhu
Despite Ti 3 C 2 T x MXene has certified tremendous promise for improving the anti-corrosion/wear of epoxy resin, it falls short of matching the protective standards under long-term extreme conditions. Herein, 2-methylimidazole zinc salt ZIF-8 was grown in-situ on amino-functionalized Ti 3 C 2 T x nanosheets and doped with cerium cations (P + -Ti 3 C 2 T x @ZCe). The Ti 3 C 2 T x -based composite was then parallel arranged within epoxy coating utilizing electrophoretic deposition technique to prepare a novel self-healing intelligent coating (PMX@ZCe). The encapsulation structure of P + -Ti 3 C 2 T x @ZCe was investigated by XRD , FTIR, XPS, FE-SEM, TEM, Zeta potential and TG techniques. Furthermore, the corrosion/wear resistance and self-healing performances of PMX@ZCe were discussed detailedly and the strengthening mechanism of P + -Ti 3 C 2 T x @ZCe was revealed. Results indicate that PMX@ZCe maintains the highest |Z| 0.01Hz value of 1.24 × 10 10 Ω cm 2 after 4 weeks of electrochemical test and exhibits excellent self-healing efficiency of 153 % under artificial scratch, which is ascribed to the release of Ce 3+ /Ce 4+ that could form insoluble protective films at the coating/metal interface. The wear rate of PMX@ZCe is 2.29 × 10 −5 mm 3 /N · m about 56 % lower than that of EP. PMX@ZCe possesses satisfactory corrosion/wear protection performance, thanks to the synergy of good interfacial interaction , parallel-aligned barrier effect and active-passive protection. This work provides a new design thinking for MXene-based intelligent protective coatings that can meet the demands of multi-service environments.
研究领域:
材料科学
·
表面工程
·
腐蚀科学
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF FOOD MICROBIOLOGY
·
2015
·
IF 3.082
Rui Cai,Yahong Yuan,Zhouli Wang,Chunfeng Guo,Bin Liu,Chunqing Pan,Laping Liu,Tianli Yue
Alicyclobacillus acidoterrestris can survive the pasteurization process, multiply in pasteurized juices and produce guaiacol which causes medicinal or antiseptic off-flavors. Chemical preservatives have the potential to suppress outgrowth of surviving populations during subsequent storage of fruit juices. In the present study, the individual effects of potassium sorbate , sodium benzoate , potassium metabisulfite , dehydroacetic acid , ethyl 4-hydroxybenzoate, cinnamic acid and ε-polylysine on A. acidoterrestris growth and guaiacol production were firstly evaluated in a laboratory medium. Of the seven preservatives investigated, only dehydroacetic acid, cinnamic acid and ε-polylysine were effective both in controlling growth and guaiacol formation by A. acidoterrestris . Then, these three antimicrobials were applied to apple juice. Through the addition of 270 mg/L dehydroacetic acid, 108 mg/L cinnamic acid or 100 mg/L ε-polylysine, the A. acidoterrestris counts were reduced by 3.43, 3.17 and 4.78 log colony forming unit (CFU)/mL, respectively, and no guaiacol was detected after 14 days of storage. Sensory evaluation revealed that the addition of these three preservatives did not affect the organoleptic properties of the apple juice. Results obtained in this paper could be very useful for a better control of A. acidoterrestris -related spoilage in the fruit juice/beverage industry.
研究领域:
食品科学
·
微生物学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）