Article
Chemistry, Applied
Dajiang Zheng, Qi Gui, Yuqing Xu, Guang-Ling Song
Summary: The study demonstrated that the modified alternate anodic and cathodic AC-DC-AC method is more reliable in evaluating the protection performance of an acrylic varnish paint coating, by rationalizing the acceleration of coating degradation without altering the mechanism of corrosion damage. The corrosion damage and mechanism of the acrylic varnish paint coating/Q215 steel system were discussed in detail based on the results obtained from the modified AC-DC-AC tests.
PROGRESS IN ORGANIC COATINGS
(2021)
Article
Materials Science, Multidisciplinary
Jie Qiu, Digby D. Macdonald, Ryan Schoell, Junsoo Han, Sara Mastromarino, John R. Scully, Djamel Kaoumi, Peter Hosemann
Summary: The study found that the oxide film formed on Type 316L stainless steel in molten FLiNaK salt is unstable and can only provide temporary corrosion protection. After the dissolution of the oxide film, selective dealloying of Cr and Fe from the steel leads to intergranular corrosion of Type 316L SS in molten fluoride salt.
Article
Materials Science, Multidisciplinary
Yao Tan, Zi-xue Jiang, Jun-hang Chen, Zhi-hao Hu, Hao Zhang, Xin Zhang, Chao-fang Dong, Kui Xiao
Summary: This study comprehensively evaluated the corrosion characteristics and mechanisms of 2A97 Al-Li alloy in a marine atmosphere using various investigative techniques. The research found that the corrosion propensity of the alloy decreased over time. The corrosion by-products mainly consisted of compounds such as Al2O3 and Al(OH)(3), with trace constituents including Li2O, LiOH, Li2CO3, Al-based chlorides and sulphates, and elemental Cu. The compactness of Al2O3 limited the permeation of corrosive ions, while the stable Li2CO3 film exhibited excellent corrosion-inhibition properties. The cyclic dissolution and reprecipitation of elemental Cu enhanced the adhesive strength between the corrosion product layer and alloy substrate, further reducing the corrosion kinetics.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Chemistry, Applied
Veronica Veloso, Fernando Cotting, Diego Silva, Adelina Santos
Summary: This study evaluated the performance of epoxy coatings containing polyaniline, graphene, and modified graphene in corrosion protection of carbon steel. The results showed that the modified graphene coating provided excellent corrosion protection with minimal damage to its structure.
PROGRESS IN ORGANIC COATINGS
(2022)
Article
Chemistry, Physical
Jingzhen Qiao, Xiaowen Zhang, Guoqing Chen, Wenlong Zhou, Xuesong Fu, Junwei Wang
Summary: The effect of shot peen forming on the corrosion resistance of 2024 aluminum alloy in a salt spray environment was investigated. The results showed that shot peen forming worsened the corrosion resistance and led to severe intergranular corrosion.
Article
Construction & Building Technology
Yanan Yue, Shuling Gao, Ning Li, Rui Zhang
Summary: High-strength steel and high-strength weathering steel were tested through an indoor acetic salt spray accelerated corrosion test and high-cycle fatigue test, obtaining the time-varying laws of corrosion damage, the composition of corrosion products, and the fatigue life under different corrosion times. The results show that on the surface of high-strength weathering steel, -FeOOH is generated first, hindering the progress of corrosion; the corrosion parameters (C, S) are linearly negatively correlated with the fatigue life. This study provides reference for the design and use of high-strength and high-strength weathering steel.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
J. Mu, Y. Z. Li, X. Wang
Summary: The crevice corrosion of X70 steel varies in different pH solutions, with pH=2 and pH=12 solutions promoting crevice corrosion while pH=6.8 solution prevents it. The increase of pH and Cl- inside crevice contribute to crevice corrosion in pH=2 solution, while the decrease of pH and increase of Cl- inside crevice lead to crevice corrosion in pH=12 solution.
Article
Materials Science, Multidisciplinary
Xude Qin, Xinglinmao Li, Wei Wang, Qiyuan Li, Tong Wang, Lin Cao, Jinming Piao, Shougang Chen
Summary: A flexible elastomer with excellent corrosion resistance property was synthesized by polymerizing methyl acrylates and ethyl acrylate and successfully anchored on carbon steel surfaces. The elastomer exhibited great mechanical properties and the coating added tannic acid showed excellent anticorrosion performance.
Article
Engineering, Mechanical
Zhuzhu Zhang, Haitao Mao, Yueliang Chen, Xingjun Wu, Shenglin Zhou, Wenlin Hu
Summary: Under the environmental conditions of an aircraft carrier, the dynamic fracture toughness of corroded 38CrMoAl steel was tested to determine its ability to withstand impact load and corrosion. Through experimental and numerical methods, the dynamic constitutive model parameters of the corroded steel were obtained and used to establish a finite element model. The fracture mechanism of the corroded steel under the interaction between corrosion and high strain rate loading was analyzed based on the fracture morphology and EDS energy spectrum.
THEORETICAL AND APPLIED FRACTURE MECHANICS
(2022)
Article
Construction & Building Technology
Yu Zhang, Kaifeng Zheng, Jin Zhu, Ming Lei, Xiaoyang Feng
Summary: Weathering steel and high-performance steel are commonly used in bridge engineering, but corrosion effects can reduce their fatigue strength, posing a threat to the safety and reliability of bridges. Experimental results show that corrosion causes a decrease in the fatigue strength of Q345CNH and HPS 70 W, with fatigue cracks primarily originating from pitting flaws.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Xuehui Hao, Xingchuan Zhao, Hui Chen, Baoxu Huang, Jie Ma, Changzheng Wang, Yuansheng Yang
Summary: The study demonstrated that intermediate quenching treatment can alter the microstructure of steel, improving its corrosion resistance and reducing the occurrence of galvanic corrosion. The morphology of Fe3C and the content of cathodic phase are key factors in controlling the ratio of cathode to anode during the corrosion process.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Construction & Building Technology
Min Xia, Youde Wang, Shanhua Xu
Summary: An artificial accelerated corrosion test was conducted to study the surface morphology characteristic of corroded steel in a neutral salt spray environment. Results showed that the corrosion depth of steel surfaces generally follows a normal distribution, while the pit depth and aspect ratio follow a lognormal distribution. The parameters of the corroded steel surfaces changed with the degree of corrosion.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Engineering, Chemical
Ikenna B. Onyeachu, Demian Njoku, Savas Kaya, Brahim El Ibrahimi, C. Fortee Nnadozie
Summary: The study found that in CO2-saturated saltwater and H2S solution, 1-benzylimidazole can effectively inhibit the corrosion of C1018 carbon steel as a corrosion inhibitor, and its adsorption process reduces localized corrosion.
JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Dounia Azzouni, Rajesh Haldhar, Rajae Salim, Elhachmia Ech-chihbi, Soukaina Alaoui Mrani, Zakia Rais, Mohammad Azam, Seong-Cheol Kim, Mustapha Taleb
Summary: This experimental study investigated the corrosion inhibition properties of spent coffee grounds activated carbon (CAP) in 1 M HCl acid medium on mild steel (MS). Experimental techniques such as polarization curves and electrochemical impedance spectroscopy (EIS) were used to evaluate the effectiveness of CAP as a corrosion inhibitor for mild steel in a molar hydrochloric acid solution. The adsorption process was confirmed through Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), energy dispersive X-ray spectrometry (EDX), and UV-visible analyses. The impedance and inhibition efficiency parameters were found to increase with the concentration of the inhibitors. The maximum inhibition efficiencies of CAPBM, CAPRhB, I, and CAP were approximately 90%, 89%, 88%, and 78%, respectively, at an optimum concentration of 1 g/L.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Polymer Science
Zhongyu Huang, Lihong Liu, Bing Lei, Guozhe Meng, Zhiyuan Feng, Honglei Guo, Bokai Liao, Ping Zhang
Summary: A new imidazole derivative corrosion inhibitor was synthesized and its corrosion inhibition performance was evaluated for Q235 carbon steel in a 3.5 wt. % NaCl acidic solution. The results showed that this inhibitor offers excellent corrosion protection performance and provides a new strategy for carbon steel corrosion protection.
Article
Chemistry, Applied
Heena, Komal Sharma, Kamlesh Kumar, Bhargab Das, Raj Kumar
Summary: In this study, holographic films were prepared using an automatic film applicator, and their performance was compared with films prepared by other methods. The results showed that holographic films prepared with the automatic film applicator had higher diffraction efficiency and more uniform thickness, making them suitable for holographic applications.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Athira S. Vijayan, Antony Joseph, Abey Joseph, T. S. Abhijith, Baiju G. Nair, V. Sajith
Summary: Novel polydopamine functionalized ceria-zirconia nanoparticles filled water-borne epoxy nanocomposite coatings were developed to prevent microbial-induced corrosion of mild steel. The coatings exhibited exceptional anti-biofouling and anti-biocorrosion properties due to the synergistic effect of PDA functionalization and zirconium incorporation, providing significant enhancement in charge transfer resistance and coating resistance.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Yudan Yi, Qingyong Sun, Qijun Li, Bi Shi, Ya-nan Wang
Summary: Producing metal-free leather is an effective approach to eliminate Cr pollution and achieve sustainable development of the leather industry. However, current metal-free tanning technologies have limitations in terms of water sorption and charge properties. By using cationic amphiphilic acrylic copolymers (PSD) as retanning agents, the properties of metal-free leather can be significantly improved, including enhanced hydrophobicity, better dye absorption, and excellent filling effect.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Yunqing Xia, Lifen Tong, Xiaofang Feng, Hubing Xiang, Yi He, Xiaobo Liu
Summary: By incorporating functionalized nanofillers, such as polydopamine-modified graphitic carbon nitride and cerium oxide, into epoxy coatings, their corrosion resistance can be improved and their protective period can be extended.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Weineng Lu, Guanhao Ma, Jinqing Qu
Summary: Four novel bis-chalcone-based carbazole derivative photoinitiators were designed and synthesized in this study. Their maximum absorption wavelengths were determined and found to exhibit high molar extinction coefficients. Furthermore, a three-component photoinitiation system including bis-chalcone/iodonium/amine was successfully used to trigger the rapid and efficient photopolymerization of acrylates. The photoinitiators also showed good photo bleaching and biocompatibility, making them suitable for applications such as 3D printing and deep coating curing.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Xingnan Zhou, Shixian Zhang, Yiheng Song, Hongmei Qin, Chuanxi Xiong, Shan Wang, Quanling Yang, Delong Xie, Rong Fan, Dan Chen
Summary: In this study, eco-friendly 3-amino-1,2,4-triazole (ATA) molecules were used to modify graphene oxide (GO) nanosheets for improving the anti-corrosion performance of water-borne epoxy (WEP) coating. The results show that ATA modification enhances the dispersion of GO in the polymer coating and significantly improves the barrier effect.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Hao Fu, Wei Bing, Xushibojie Liu
Summary: In this study, temperature-sensitive coatings with bacteria-killing and bacteria-releasing functions were prepared on silicone rubber surfaces by UV polymerization and UV photocatalysis. The modified surface exhibited strong and persistent bactericidal effect, inhibiting the formation of bacterial biofilm. Moreover, the smart surface can effectively release bacteria and resist bacterial adhesion through temperature changes. The modified silicone rubber surface showed good biocompatibility without cytotoxicity.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Lee Eyann, Zulkifli Mohamad Ariff, Mohamad Danial Shafiq, Raa Khimi Shuib, Muhamad Sharan Musa
Summary: By investigating the effect of MAA addition on the properties of the WEA core-shell emulsion, film and coating, it was found that MAA can significantly impact the structure and performance of the coatings, and has great potential for applications.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Jinkyu Choi, Kyung Hoon Min, Byeong Seok Kim, Sung-Hyeon Baeck, Sang Eun Shim, Yingjie Qian
Summary: A novel phosphorus-based flame retardant was designed by incorporating aryl groups, which effectively improved the flame retardancy and mechanical properties of polyurethanes.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Saowaluk Taechutrakul, Thananchai Piroonpan, Beata Paulina Rurarz, Slawomir Kadlubowski, Piotr Ulanski, Wanvimol Pasanphan
Summary: This study proposes the use of nanogels to disperse and stabilize water-insoluble organic pigment particles in water-based inks. The nanogels were prepared using electron beam-induced chemical reactions and showed good dispersion and stabilization properties. The use of nanogels in ink formulation improved the ink's hiding power, lightfastness, and resistance properties.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Shan Wan, Huikai Chen, Bokai Liao, Xingpeng Guo
Summary: In this study, 2-amino-5 mercapto-1,3,4-thiadiazole (ATT) was used as an intercalating agent to prepare ATT/BNNS nanofillers via a liquid-phase assisted ultrasound method. TEM results showed that ATT successfully exfoliated BNNS and reduced agglomeration. The WEP ATT/BNNS coating exhibited the best protective performance under saline immersion due to the combined action of ATT inhibitor and BNNS physical barrier.
PROGRESS IN ORGANIC COATINGS
(2024)
Review
Chemistry, Applied
Lijie Yin, Bo Zhang, Ming Tian, Nanying Ning, Wencai Wang
Summary: This paper reviews the recent progress in the synthesis of bio-based waterborne polyurethanes (BWPU) and focuses on its applications in coatings, adhesives, and antimicrobials. BWPU has attracted much attention due to its good physical and chemical properties, no VOCs emissions, exploitation of renewable substances, and structural design-ability.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Yuyang Zhou, Yang Chen, Xinming Cao, Haodong Fu, Yun Li, Yonghui Zhang, Jun Ma, Xin Liu
Summary: This study proposes a strategy to fabricate a high-strength double-layer superhydrophobic actuator, which consists of a metal/glass-based superhydrophobic substrate and a polymer superhydrophobic coating. The coating has high adhesive strength, self-cleaning, anti-ultraviolet irradiation, and anti-stripping properties, along with photothermal and magnetic response capabilities, enabling its application in various fields.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Fengbiao Chen, Fei Gao, Xinru Guo, Yu Chen, Xuelang Gao, Liang Shen
Summary: In this study, various covalent adaptable networks (CANs) were synthesized using multifunctional amines and compared with CANs prepared from primary and secondary amines. The results showed that the performance of CANs is closely related to the crosslinking density, and increasing the content of secondary amines improves the performance but weakens the dynamics.
PROGRESS IN ORGANIC COATINGS
(2024)
Article
Chemistry, Applied
Qian Zhang, Mengyi Shen, Xingcai Liu, Hao Fu, Wenbo Yang, Jinyuan Zhao, Jian Wang, Yaping Du, Chunjie Ma
Summary: Rare earth-containing corrosion inhibitors were successfully synthesized and added into epoxy coatings for the anti-corrosion of steel materials. The results showed that the coatings with rare earth elements had better anti-corrosion performance, and this difference in performance could be explained by the inherent properties of rare earth elements.
PROGRESS IN ORGANIC COATINGS
(2024)