Article
Materials Science, Coatings & Films
Juyi Yang, Yanbin Zhao, Jianwei Dai, Linyuan Han, Qiangsheng Dong, Lu Zhang, Jing Bai, Feng Xue, Paul K. Chu, Chenglin Chu
Summary: In this study, a polyethyleneimine/polyacrylic acid (PEI/PAA) multilayered coating is prepared by layer-by-layer (LbL) assembly on the WE43 Mg alloy, followed by mineralization of hydroxyapatite (HA) on the LbL multilayer. The composite coating with a compact surface shows improved corrosion resistance. The formation mechanism, structure, and properties of the organic/inorganic composite coating are investigated systematically.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Materials Science, Ceramics
Tengfei Meng, Shu Cai, Lei Ling, You Zuo, Hao Tian, Huanlin Zhang, Hang Zhang, Guohua Xu
Summary: Recently, there is increasing interest in superhydrophobic magnesium-based implants due to their superior corrosion resistance and specific anti-bacterial adhesion properties. However, the superhydrophobic surface hinders cell adhesion and proliferation, limiting the application of these implants. In this study, a superhydrophobic composite coating composed of hydroxyapatite, bismuth sulfide, and lauric acid was prepared on AZ31B Mg alloys. The composite coating exhibited a water contact angle of 156 degrees, providing excellent corrosion resistance and antibacterial properties. Additionally, the surface of the coating could be transformed from superhydrophobic to hydrophilic upon near-infrared light irradiation, offering effective protection for the Mg alloy substrate. The coated Mg alloy demonstrated high antibacterial efficiency against Staphylococcus aureus and Escherichia coli, and good biocompatibility with favorable cell viability and early cell growth and adhesion.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Qiang Li, Xudong Zhang, Shuang Ben, Zhihong Zhao, Yuzhen Ning, Kesong Liu, Lei Jiang
Summary: By designing a micro/nano structure-functional molecule superhydrophobic composite coating with self-healing and active anti-corrosion properties, the corrosion resistance of magnesium (Mg) alloys was improved, providing new insights for the wide application of Mg alloys and research in the field of metal protection.
Article
Chemistry, Physical
Qiang Li, Xudong Zhang, Shuang Ben, Zhihong Zhao, Yuzhen Ning, Kesong Liu, Lei Jiang
Summary: In this study, a micro/nano structure-functional molecule superhydrophobic composite coating was designed, which can self-heal and exhibit active anti-corrosion properties after damage. The investigation of its anti-corrosion performance and self-healing mechanism expands the application of magnesium alloys and research in the field of metal protection.
Article
Materials Science, Multidisciplinary
Jing Yuan, Rui Yuan, Pei Li, Duolu Mao, Tao Feng
Summary: A superhydrophobic ceria-based composite coating was developed to improve the corrosion resistance of AZ61 magnesium alloy. After hydrothermal treatment, the composite coating showed hydrophobic properties and excellent corrosion resistance, effectively preventing electrolyte contact with the substrate.
MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION
(2021)
Article
Chemistry, Physical
Kui Xue, Yan-Jin Li, Tian-Hao Ma, Lan-Yue Cui, Cheng-bao Liu, Yu-hong Zou, Shuo-Qi Li, Fen Zhang, Rong-Chang Zeng
Summary: In this research, a self-assembled amorphous calcium carbonate (ACC)@curcumin (Cur) loaded polymethyltrimethoxysilane (PMTMS) coating on micro-arc oxidation (MAO) coated magnesium (Mg) alloy was proposed to overcome the issues of rapid corrosion and bacterial infection in using biodegradable Mg alloy for biomedical materials. The coating exhibited favorable corrosion resistance, dual antibacterial ability, and good biocompatibility. Cur was employed as an antibacterial agent and photosensitizer for photothermal therapy. The core of ACC significantly improved the loading of Cur and the deposition of hydroxyapatite corrosion products during degradation, thus enhancing the long-term corrosion resistance and antibacterial activity of Mg alloys.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Sheng-Jian Zhang, Duan-Lin Cao, Li-Kun Xu, Jian-Ke Tang, Rong-Qian Meng, Hong-Dao Li
Summary: The study successfully fabricated a fluorine-free superhydrophobic Mg(OH)2/DTMS composite coating with excellent corrosion resistance and superhydrophobicity. The coating was composed of walnut-like micro/nanostructures, demonstrating a high contact angle and low sliding angle, and exhibited significantly improved corrosion resistance compared to uncoated substrate.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Materials Science, Multidisciplinary
Ao Gong, Yong Zheng, Zhengkai Yang, Xiaoge Guo, Yan Gao, Xiaoyu Li
Summary: A novel superhydrophobic coating was fabricated with F-SiO2 nanoparticles, epoxy resin adhesive, fluorosilicone varnishes, and white fluorinated polyurethane coatings. The coating exhibited excellent water-repellency with a contact angle of 161.35 degrees and a sliding angle of only 2.0 degrees. It also showed significant enhancement in corrosion resistance and self-cleaning ability, making it highly durable and efficient for practical applications.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Materials Science, Coatings & Films
Liyuan Wang, Ximei Xiao, Xiaoli Yin, Jun Wang, Guang Zhu, Sirong Yu, Enyang Liu, Bingying Wang, Xizhen Yang
Summary: In this study, a Ca-P/CS composite coating was prepared on AZ31 Mg alloy surface through a simple process, improving the corrosion resistance, bonding ability, and self-cleaning properties of the Mg alloy. The composite coating provided better protection to the substrate in electrochemical measurements and immersion tests compared to the single Ca-P coating.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Chemistry, Applied
Meng Tian, Shu Cai, Lei Ling, You Zuo, Zhongyan Wang, Pengbo Liu, Xiaogang Bao, Guohua Xu
Summary: A dual-function antibacterial composite coating of hydroxyapatite (HA)/hydroxypropyltrimethyl ammonium chloride chitosan (HACC) was successfully prepared on Mg alloy in this study. The composite coating exhibited superhydrophilicity and excellent bactericidal properties, reducing protein adsorption and bacterial adhesion. Moreover, it showed good biocompatibility on cells.
PROGRESS IN ORGANIC COATINGS
(2022)
Article
Materials Science, Multidisciplinary
Changyang Liu, Jiapeng Sun, Guosong Wu
Summary: A simple solution-immersion method based on the concept of predesigned corrosion is developed to enhance the corrosion resistance of a magnesium-neodymium alloy, providing a feasible way to prepare a superhydrophobic surface on the alloy. The superhydrophobic surface exhibits self-cleaning behavior and good corrosion resistance in artificial hand sweat, offering new technical insights into the corrosion protection of magnesium alloys.
Article
Materials Science, Multidisciplinary
Kui Xue, Pei-Hong Tan, Ze-Hui Zhao, Lan-Yue Cui, M. Bobby Kannan, Shuo-Qi Li, Cheng-Bao Liu, Yu-Hong Zou, Fen Zhang, Zhuo-Yuan Chen, Rong-Chang Zeng
Summary: In this research work, a Mg(OH)2 coating was formed on the surface of micro arc oxidation (MAO) coated AZ31 alloy through a low temperature hydrothermal method, incorporating sodium alginate (SA) and beta-cyclodextrin (beta-CD)@curcumin (Cur). The coating exhibited excellent corrosion protection, multi-antibacterial ability and almost no toxicity to the cells. The photothermal performance of the coating was achieved through the light absorption of encapsulated Cur by beta-CD, while SA enhanced the binding force between the drug and the substrate.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Nanoscience & Nanotechnology
Wang Tian, Chao Li, Kong Liu, Fangyuan Ma, Kaiwen Chu, Xuan Tang, Zhijie Wang, Shizhong Yue, Shengchun Qu
Summary: A superhydrophobic surface with micro/nanoscale structures was designed by employing facile and low-cost demolding and initiated chemical vapor deposition (iCVD) processes. The achieved micro/nanostructured superhydrophobic surface exhibited a maximum static contact angle of about 170 degrees, a roll-off angle and contact angle hysteresis below 1 degree, ultralow solid/liquid adhesion for water droplets, and maintained excellent superhydrophobicity even after exposure to strongly corrosive substances for 60 hours. This reasonably-designed method provides valuable guidelines for the manufacture of transferable superhydrophobic surfaces and enables potential applications in optoelectronic devices and self-cleaning materials.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Materials Science, Composites
Hongpeng Zheng, Zhe Li, Li Liu, Fandi Meng, Yu Cui, Fuhui Wang
Summary: A novel superhydrophobic coating was developed to enhance durability and integrity in marine environments, showing significant antibacterial and anti-corrosive effects.
COMPOSITES COMMUNICATIONS
(2021)
Article
Materials Science, Coatings & Films
Yufang Luo, Wenhui Yao, Wensheng Fu, Liang Wu, Dingfei Zhang, Fusheng Pan
Summary: A facile and low-cost method was proposed to construct a nanocomposite coating on a magnesium alloy, effectively reducing the contact area between corrosive solutions and the magnesium substrate, providing good corrosion protection and accelerating the extensive applications of magnesium alloys.
SURFACE ENGINEERING
(2021)
