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Superior anti-corrosion and self-healing bi-functional polymer composite coatings with polydopamine modified mesoporous silica/graphene oxide

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Journal of Materials Science & Technology 2021年第36期95卷 95-104页

作者： Yanqi Ma Haowei Huang Hongda Zhou Michael Graham James Smith Xinxin Sheng Ying Chen Li Zhang Xinya Zhang Elena Shchukina Dmitry Shchukin Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter School of Materials and EnergyGuangdong University of TechnologyGuangzhou 510006China School of Chemistry and Chemical Engineering Guangdong Provincial Key Lab of Green Chemical Product TechnologySouth China University of TechnologyGuangzhou 510640China Stephenson Institute for Renewable Energy Department of ChemistryUniversity of LiverpoolCrown StreetLiverpool L697ZDUK

In this article,graphene oxide(GO)and benzotriazole-loaded mesoporous silica nanoparticles(BTA/MSNs)are combined on micro scale through the in situ polymerization of polydopamine(PDA),preparing a selfhealing bi-functional GO(fGO)used as nano-fillers for anti-corrosion enhancement of waterborne epoxy(WEP)*** electronic microscopy(SEM)images show that the BTA/MSNs are uniformly distributed on the surface of high aspect ratio GO nanosheets to endow GO nanocontainer ***-vis profiles demonstrate that fGO has p H-controlled release *** at lowest frequency is generally used for comparing the corrosion resistance of organic *** at lowest frequency(1.42×10^(5)Ωcm^(2))after 30 days immersion in 3.5 wt.%Na Cl solution revealed 2 orders of magnitude higher that of blank WEP(1.17×10^(7)Ωcm^(2)).With artificial cracks on its coatings,fGO/WEP had no obvious rust compared with blank WEP after 240 h of *** anticipate that self-healing and physical barrier bi-functional nanocontainers improve the traditional anticorrosion coating efficiency with better,longer-lasting performance for shipping,oil drilling or bridge maintenance.

关键词： Mesoporous silica Graphene oxide anti-corrosion Self-healing Functional composite coatings

Facile Li-Al layered double hydroxide films on Al alloy for enhanced hydrophobicity, anti-biofouling and anti-corrosion performance

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Journal of Materials Science & Technology 2021年第20期79卷 230-242页

作者： Ji Li Tianci Yuan Chengliang Zhou Bo Chen Yi Shuai Dawang Wu Dongchu Chen Xiaohu Luo Y.Frank Cheng Yali Liu State Key Laboratory for Chemo/Biosensing and Chemometrics College of Chemistry and Chemical EngineeringHunan UniversityChangsha410082China Department of Mechanical and Manufacturing Engineering University of CalgaryCalgaryAlbertaT2N 1N4Canada School of Chemistry and Chemical Engineering Qiannan Normal University for NationalitiesDuyun558000China College of Mechanical Engineering and Applied Electronics Technology Beijing University of TechnologyBeijing100124China School of Material Science and Energy Engineering Foshan UniversityFoshan528000China

In this work,lithium(Li)-aluminum(Al)layered double hydroxide(LDH)films modified by 4-amino-2-((hydrazine methylene)amino)-4-oxobutanoic acid(denoted as AOA acid)and/or 1H,1H,2H,2H-perfluorooctyltriethoxysilane were prepared on 6N01 Al alloy by a facile,in-situ growth method with enhanced hydrophobicity,anti-biofouling and anti-corrosion *** preparation is low energy consumptive and environment friendly,relying on self-assembly at ambient *** structure,molecular weight and functional groups of the synthesized AOA acid were characterized by NMR spectrometer,ESI-MS spectrometer and Fourier transform infrared(FT-IR)*** the compositions,structure and morphology of the films were characterized by Fourier transform infrared(FT-IR)spectroscopy,glancing-angle X-ray diffraction(GA-XRD),X-ray photoelectron spectroscopy(XPS),field emission scanning electron microscopy(FE-SEM)and energy-dispersive x-ray spectrum(EDS).Water contact angle measurements(CA)and atomic force microscopy(AFM)characterization show that the films possess a micro/nanostructure with an improved *** test,neutral salt tests(NSS)and electrochemical impedance spectroscopy(EIS)conducted in 3.5 wt.%NaCl solutions demonstrate the improved corrosion resistance of the films over bare Al ***,the films also possess an excellent anti-bacterial property toEscherichia coli,Bacillus subtilis and sulfate-reducing bacteria.

关键词： Li-Al layered double hydroxides anti-biofouling Hydrophobicity anti-bacterial anti-corrosion

Hybrid superamphiphobic anti-corrosion coating with integrated functionalities of liquid repellency,self-cleaning,and anti-icing

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Journal of Materials Science & Technology 2024年第17期184卷 256-268页

作者： Binbin Zhang Guang Yang Weichen Xu Jizhou Duan Baorong Hou CAS Key Laboratory of Marine Environmental corrosion and Bio-fouling Institute of OceanologyChinese Academy of SciencesQingdao 266071China University of Chinese Academy of Sciences Beijing 100049China School of Metallurgy Engineering Jiangsu University of Science and TechnologyZhangjiagang 215600China

Superhydrophobic materials have shown tremendous potential in various ***,the adhesion,wetting,and pinning of low-surface-tension liquids greatly limit their multifunctional ***,the creation of superamphiphobic coatings that combine superhydrophobic and superoleophobic properties through a simple preparation strategy is *** this study,we successfully developed an organic-inorganic hybrid superamphiphobic coating on Q235 carbon steel using aluminum oxide nanopar-ticles,organosilanes,and waterborne epoxy resin via a versatile spray-coating *** coating ex-hibited high contact angles(>151°)and low sliding angles(corrosion current density decreased by four orders of ***,the coating endured 480 h of salt spray and 2400 h of outdoor atmospheric exposure,showcasing superior anti-corrosion *** tests of water droplets at-10°C and-15°C confirmed that the coating significantly prolonged the freezing time with reduced ice adhesion *** believe that the designed superamphiphobic coating with integrated functionalities of selfcleaning,anti-corrosion,anti-icing,and anti-liquid-adhesion can provide important solutions for extending the lifespan of materials in marine and industrial environments.

关键词： Superhydrophobic Superamphiphobic anti-corrosion anti-icing Self-cleaning

Atomic-Scale Layer-by-Layer Deposition of Fe SiAl@ZnO@Al_(2)O_(3) Hybrid with Threshold anti-corrosion and Ultra-High Microwave Absorption Properties in Low-Frequency Bands

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Nano-Micro Letters 2021年第10期13卷 308-321页

作者： Wei Tian Jinyao Li Yifan Liu Rashad Ali Yang Guo Longjiang Deng Nasir Mahmood Xian Jian National Engineering Researching Centre of Electromagnetic Radiation Control Materials Key Laboratory of Multi-Spectral Absorbing Materials and Structures of Ministry of EducationState Key Laboratory of Electronic Thin Films and Integrated DevicesSchool of Electronic Science and EngineeringUniversity of Electronic Science and Technology of ChinaChengdu 611731People’s Republic of China School of Electronic Science and Engineering The Yangtze Delta Region Institute HuzhouUniversity of Electronic Science and Technology of ChinaHuzhou 313001People’s Republic of China School of Materials and Energy University of Electronic Science and Technology of ChinaChengdu 611731People’s Republic of China School of Electrical and Information Engineering Panzhihua UniversityPanzhihua 617000People’s Republic of China School of Engineering RMIT UniversityMelbourneVictoria 3001Australia

Developing highly efficient magnetic microwave absorb-ers(MAs)is crucial,and yet challenging for anti-corrosion properties in extremely humid and salt-induced foggy ***,a dual-oxide shell of ZnO/Al_(2)O_(3) as a robust barrier to FeSiAl core is introduced to mitigate corrosion *** FeSiAl@ZnO@Al_(2)O_(3) layer by layer hybrid structure is realized with atomic-scale precision through the atomic layer deposition *** to the unique hybrid structure,the FeSiAl@ZnO@Al_(2)O_(3) exhibits record-high micro-wave absorbing performance in low-frequency bands covering L and S bands with a minimum reflection loss(RLmin)of-50.6 dB at 3.4 *** with pure FeSiAl(RLmin of-13.5 dB,a bandwidth of 0.5 GHz),the RLmin value and effective bandwidth of this designed novel absorber increased up to~3.7 and~3 times,***-thermore,the inert ceramic dual-shells have improved 9.0 times the anti-corrosion property of FeSiAl core by multistage barriers towards corrosive medium and obstruction of the electric *** is attributed to the large charge transfer resistance,increased impedance modulus|Z|0.01 Hz,and frequency time constant of FeSiAl@ZnO@Al_(2)O_(3).The research demonstrates a promising platform toward the design of next-generation MAs with improved anti-corrosion properties.

关键词： Atomic layer deposition Magnetic alloy Dual-oxide-shells Microwave absorption anti-corrosion

Tribological and anti-corrosion performance of epoxy resin composite coatings reinforced with differently sized cubic boron nitride(CBN)particles

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Friction 2021年第1期9卷 104-118页

作者： Zhiping HUANG Wenjie ZHAO Wenchao ZHAO Xiaojing CI Wentao LI Key Laboratory of Marine Materials and Related Technologies Zhejiang Key Laboratory of Marine Materials and Protective TechnologiesNingbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingbo 315201China University of Chinese Academy of Sciences Beijing 100049China

A series of high solid content(30 wt%)epoxy resin(EP)composite coatings reinforced with differently sized cubic boron nitride(CBN)particles were fabricated successfully on 304 L stainless ***(PDA)was used to improve the dispersibility of CBN particles in *** structural and morphological features of the CBN particles and the composite coatings were characterized by Raman spectroscopy,scanning electron microscopy(SEM),and transmission electron microscopy(TEM).Moreover,a UMT-3 tribometer and surface profiler were used to investigate the tribological behaviors of the as-prepared composite *** impedance spectroscopy(EIS)and Tafel analysis were used to investigate the coatings'anti-corrosion *** results demonstrated that the CBN fillers could effectively enhance the tribological and anti-corrosion properties of the EP composite *** addition,when the additive proportion of the microsized(5μm)and nanosized(550 nm)CBN particles was 1:1,the tribological property of the EP composite coatings was optimal for dry sliding,which was attributed to the load carrying capability of the microsized CBN particles and the toughening effect of the nanosized CBN ***,when the additive proportion of the microsized and nanosized CBN particles was 2:1,the tribology and corrosion resistance performance were optimal in seawater *** ascribed this to the load-carrying capacity of the microparticles,which played a more important role under the seawater lubrication condition,and the more compact structure,which improved the electrolyte barrier ability for the composite coatings.

关键词： epoxy resin cubic boron nitride size composite coating wear resistance anti-corrosion

Plasma-enhanced interfacial engineering of FeSiAl@PUA@SiO_(2)hybrid for efficient microwave absorption and anti-corrosion

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Nano Research 2023年第1期16卷 645-653页

作者： Hongyan Zhang Feng Cao Hui Xu Wei Tian Ying Pan Nasir Mahmood Xian Jian School of Materials and Energy University of Electronic Science and Technology of ChinaChengdu 611731China Yangtze Delta Region Institute(Huzhou) University of Electronic Science and Technology of ChinaHuzhou 313001China Department of Engineering Technology Huzhou CollegeHuzhou 313000China School of Science RMIT UniversityMelbourneVIC 3001Australia

Microwave absorption materials are prone to degradation in extremely humid and salty environments,and it is still challenging to develop a dense and firm interface to protect microwave ***,a robust FeSiAl@PUA@SiO2(PUA:acrylic polyurethane)gradient hybrid was prepared through plasma-enhanced chemical vapor deposition(PECVD)to achieve efficient microwave absorption and anti-corrosion *** organic/inorganic dual coat of PUA/SiO2 not only facilitated the interface polarization but also effectively reduced the dielectric constant and optimized impedance *** to the unique hybrid structure,the(PECVD-FeSiAl@PUA)@SiO_(2) exhibited highly efficient microwave absorbing performance in frequency bands covering almost the entire Ku-bands(12-18 GHz)with a minimum reflection loss(RLmin)of−47 dB with a matching thickness of 2.3 *** organic/inorganic dual protection effectively shields against the corrosive medium,as the corrosion potential and the polarization resistance increased from−0.167 to−0.047 V and 8,064 to 16,273Ω·cm^(2),*** the corrosion current decreased from 3.04×10^(−6) to 2.16×10^(−6) A/cm^(2).Hence,the plasma-enhanced densification of PUA created a strong bridge to integrate FeSiAl and organic/inorganic components acquiring dual-function of efficient microwave absorption and anticorrosion,which opened a promising platform for potential practical absorbers.

关键词： FeSiAl polyurethane acrylic inorganic/organic interface microwave absorption anti-corrosion

Slippery Surface with Petal-like Structure for Protecting Al Alloy: anti-corrosion, anti-fouling and anti-icing

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Journal of Bionic Engineering 2022年第1期19卷 83-91页

作者： Junfei Huang Jiajie Kang Jiaxu Zhang Jinxia Huang Zhiguang Guo School of Engineering and Technology China University of GeosciencesBeijing100083China Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials Hubei UniversityWuhan430062China State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou730000China Zhengzhou Institute China University of Geosciences(Beijing)Zhengzhou451283China

The harsh working environment affects the performance and usage life of Al and its alloys,thus limiting their *** recent years,Slippery Liquid-infused Porous Surface(SLIPS)has attracted much attention due to excellent anti-corrosion,anti-fouling and anti-icing *** may be an effective way to improve the properties of Al and its ***,the SLIPS with petal-like structure was constructed on the Al alloy via simple hydrothermal reaction,Stearic Acid(STA)modification and lubricant injection.A variety of droplets(including oil-in-water emulsions)can slide on the SLIPS at a low angle,even the Sliding Angle(SA)of the water droplet is only 3°.Furthermore,the SLIPS exhibits outstanding mechanical and chemical *** can maintain fine oil-locking ability under high shearing force and keep slippery stability after immersion in acid/alkaline *** addition,the SLIPS possesses excellent anti-corrosion,anti-fouling and anti-icing properties,which provides a new way to promote the application of Al and its ***,the SLIPS is expected to be an effective way to improve the properties of Al and its alloys,as well as play a role in anti-fouling and self-cleaning in construction,shipbuilding and automotive manufacturing industries,thereby expanding the practical application of Al and its alloys.

关键词： Slippery surface Al alloy anti-corrosion anti-fouling anti-icing

An Integrated anti-Fouling and anti-corrosion Coating Enabled by rGO/AgNPs and Amphiphilic Networks

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Engineering 2024年第11期42卷 223-234页

作者： Shu Tian Jinli Zhang Shuan Liu Jingyu Li Jibin Pu Yugang Hao Guobing Ying Qunji Xue Guangming Lu Key Laboratory of Advanced Marine Materials Ningbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingbo 315201China Department of Material Science and Engineering College of Mechanics and Engineering ScienceHohai UniversityNanjing 211100China Department of Biochemical Engineering School of Chemical Engineering and TechnologyTianjin UniversityTianjin 300350China

Marine corrosion and biofouling are challenges that affect marine industrial equipment,and protecting equipment with functional coatings is a simple and effective ***,it is extremely difficult to combine anti-corrosion and anti-fouling properties in a single *** this work,we combine reduced graphene oxide(rGO)/silver nanoparticles(AgNPs)with a hydrophilic polymer in a bio-based silicone-epoxy resin to create a coating with both anti-fouling and anti-corrosion *** excel-lent anti-fouling performance of the coating results from a ternary synergistic mechanism involving foul-ing release,contact inhibition,and a hydration effect,while the outstanding anti-corrosion performance is provided by a ternary synergistic anti-corrosion mechanism that includes a dense interpenetrating net-work(IPN)structure,a barrier effect,and *** results show that the obtained coating pos-sesses superior anti-fouling activity against protein,bacteria,algae,and other marine organisms,as well as excellent anti-corrosion and certain self-healing properties due to its dynamic cross-linked net-work of rGO/AgNPs and the hydrophilic *** work provides an anti-corrosion and anti-fouling integrated coating for marine industrial equipment.

关键词： anti-fouling anti-corrosion rGO/AgNPs Amphiphilic coating

A novel anti-corrosion coating for magnesium alloy

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中国有色金属学会会刊：英文版 2005年第S3期15卷 381-387页

作者：黄巍李荻郑天亮 School of Materials Science and Engineering Beijing University of Aeronautics and Astronautics Beijing 100083 China

A novel enviromental protective water based metallic coating were prepared on the surface of AZ91D magnesium alloy. The properties and structure of the coating were investigated by adhension test, hardness test, heat resisting test, neutral salt spray test and scanning electron microscopy (SEM). The results show that the coating has a stepped structure which can achieve good adhesion of first-grade, heat resistance temperature of 400℃, hardness of HV_ 0.50/30210 and anti-corrosion time of 250h in salt spray test. Meanwhile, the film forming and corrosion mechanism of the coating were also put forward based on the results of the Fourier transform infrared spectroscopy (FTIR) test and electrochemical impedance spectroscopy (EIS) test.

关键词： megnesium alloy coating anti-corrosion mechanism property