Article
Construction & Building Technology
Xin Cheng, Mengyu Fu, Wenwen Dou, Shiqiang Chen, Guangzhou Liu
Summary: The combination of coatings and cathodic protection is a commonly used method for corrosion protection, but the protection life often falls short of the original design. This study investigated the degradation behavior of epoxy coatings in seawater with the presence of Pseudomonas aeruginosa, and found that Pseudomonas aeruginosa accelerated the degradation of coatings while cathodic protection promoted biofilm formation on the coating surface. The findings shed light on the shorter protection life of organic coatings and provide guidance for selecting suitable coatings with anti-fouling and anti-corrosion properties.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Engineering, Mechanical
Maryam Taheri, Mehdi Jahanfar, Kenji Ogino
Summary: The study investigated the effect of various factors on cathodic disbonding of epoxy-polyamide coating, including coating thickness, applied potential, immersion time, sodium chloride solution concentration, temperature, and pH. Results showed a relationship between these factors and the disbonding rate of the coating, with concentration and temperature of the solution having a positive correlation, while applied potential and immersion time had a negative correlation.
ENGINEERING FAILURE ANALYSIS
(2021)
Editorial Material
Materials Science, Ceramics
Pranaba K. Nayak
Summary: El-Damrawi et al. reported the synthesis and characterization of iron borosilicate glasses, but their analysis using EDXA was flawed and did not provide accurate results. Figure 7 in particular misrepresented the actual outcome of the EDXA technique.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2022)
Article
Chemistry, Physical
M. Golabadi, M. Aliofkhazraei, M. Toorani
Summary: This study investigated the protective performance of zirconium-pretreated epoxy films with and without zinc sulfate additive in 3.5 wt% NaCl solution. A new parameter based on EIS tests for the scratched samples was introduced to determine the amount of corrosive electrolyte diffusing into the coating/substrate interface, attributed to cathodic disbondment resistance. It was revealed that coating segregation was reduced via surface pretreating by zirconium with additives.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Applied
Jue Wang, Junying Hu, Chenrong Gu, Yisheng Mou, Jiansheng Yu, Xiankang Zhong
Summary: This study aims to mitigate coating cathodic delamination using pulse current cathodic protection (PCCP). The results show that PCCP can effectively retard the delamination rates of organic coatings. The mitigation effect decreases with increasing pulse frequency and duty ratio. PCCP alleviates cathodic delamination mainly by shifting the surface polarization potential to positive direction intermittently.
PROGRESS IN ORGANIC COATINGS
(2022)
Article
Chemistry, Applied
Lu Shen, Shoucheng He, Weiping Xie, Lijing Miao, Jiahui Liu, Heng Zhou, Bo Li, Yujie Qiang
Summary: This study synthesized PPy-Ti(3)C(2) hybrid and added it to epoxy zinc-rich coatings to reduce the zinc content while maintaining excellent corrosion resistance. The results showed that PPy-Ti(3)C(2) improved the corrosion resistance of the coatings and prolonged the duration of cathodic protection.
PROGRESS IN ORGANIC COATINGS
(2022)
Article
Chemistry, Applied
Weichen Bai, Yuantai Ma, Meijiang Meng, Ying Li
Summary: The study found that ZRE with a graphene content of 0.3% showed the best corrosion protection effectiveness. When the graphene content is lower than 0.3%, the coating porosity decreases, reducing the corrosion rate of zinc and extending the cathodic protection duration of the coating. However, when the graphene content is higher than 0.3%, the galvanic corrosion between graphene and zinc powders increases the corrosion rate of zinc, leading to a shortened cathodic protection duration.
PROGRESS IN ORGANIC COATINGS
(2021)
Article
Chemistry, Applied
Youwen Yang, Lei Yang, Yingzhong Sun, Nan Jiang, Chuanhai Guan, Xiaogang Fang, Jiguang Liu
Summary: In this study, epoxy resin coatings were applied on bonded NdFeB magnets using air spraying and cathodic electrophoresis deposition processes, and the morphologies and performance of different coatings were investigated. The results showed that electrophoretic coatings had a more uniform film layer and better surface leveling, demonstrating better corrosion resistance.
PROGRESS IN ORGANIC COATINGS
(2022)
Article
Polymer Science
Zhihong Qin, Yinqiang Su, Yang Bai, Hangqi Lu, Tao Peng, Huifeng Zhong, Tao Chen, Xusheng Du
Summary: The corrosion resistance of zinc-rich epoxy coatings can be significantly enhanced by incorporating three-dimensional graphene fillers, even at lower concentrations, compared to two-dimensional graphene sheets.
Article
Materials Science, Coatings & Films
S. Spor, N. Jaeger, M. Meindlhumer, H. Hruby, M. Burghammer, F. Nahif, C. Mitterer, J. Keckes, R. Daniel
Summary: The study used cross-sectional X-ray nanodiffraction to investigate depth gradients of the structure and residual stress in multilayer coatings. Results showed that a sublayer thickness between 70 and 100 nm is the ideal thickness for reducing wear rate by a factor of 10 at high temperatures.
SURFACE & COATINGS TECHNOLOGY
(2021)
Review
Construction & Building Technology
Gladis Aparecida Galindo Reisemberger de Souza, Ramon Sigifredo Cortes Paredes, Frieda Saicla Barros, Gustavo Bavaresco Sucharski, Sebastiao Ribeiro Junior, Carlos Dalmaso Neto, Larissa Ribas Santos, Watena Ferreira NTchala, Felipe Bavaroski Toledo Costa
Summary: This study focuses on the characterization of a mixture of barite powder and recycled lead powder using flame spray technique. The transformed material was analyzed and evaluated, demonstrating its effectiveness in providing better protection from X-rays.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Tianxiang Sun, Kai Jin, Wei Wang, Wen Li, Tong Wang, Tengxun Yang, Jia Cheng, Zhipeng Zhao, Shougang Chen
Summary: A long-term anti-corrosive epoxy coating based on nano-hybrid filler was developed by modifying graphene oxide nanosheets with covalent organic framework (COF) particles. The grafting of COF improved the dispersion and compatibility of GO in the coating, leading to significant enhancements in the protective properties of the composite coating.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Engineering, Multidisciplinary
Xiaoping Wang, Weiwei Dong, Peng Zhang, Haoqi Tang, Lanting Zhang, Tieying Yang, Peng Liu, Hong Wang, X. -d. Xiang
Summary: This work demonstrates high-throughput powder X-ray diffraction using a white X-ray beam and an energy-dispersive detector array. The results show consistent diffraction patterns with angle-resolved XRD, which is necessary for analyzing crystal structures of unknown samples.
Editorial Material
Chemistry, Physical
Pranaba K. Nayak
Summary: El-Damrawi et al. investigated the effect of BO4 and FeO4 structural units on the conduction mechanism of iron borosilicate glasses using various techniques. However, their use of energy dispersive X-ray analysis (EDAX) was erroneous and not based on factual experimental observation.
Article
Construction & Building Technology
Paulo R. de Matos, Jose S. Andrade Neto, Daniel Jansen, Angeles G. De la Torre, Ana Paula Kirchheim, Carlos E. M. Campos
Summary: This paper discusses the use of in-situ laboratory XRD to assess cement hydration. It provides a literature review, discusses experimental strategies, recommends data analysis routine, and discusses the advantages and limitations of this technique.
CEMENT AND CONCRETE RESEARCH
(2022)
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)