Article
Materials Science, Coatings & Films
Yi Huang, Chenyang Zhao, Yue Li, Chen Wang, Tao Shen, Di Cheng, Hui Yang
Summary: This study reported a pH-responsive corrosion inhibitor release system (BTA-ZIF8@SiO2) based on ZIF-8 for self-healing sol-gel anticorrosion coating. A one-step self-assembly procedure was used to create BTA-encapsulated ZIF-8 core, on which a layer of silica was coated to improve compatibility with the sol-gel matrix and enhance overall corrosion protection.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Juan Wang, Fengcang Ma, Lin Song, Ping Liu, Wei Li, Ke Zhang, Xiaohong Chen
Summary: Benzotriazole (BTA) inhibitor was coated in mesoporous silica nanoparticles (MSNs) using tannic acid complex (TAC) deposition, forming a pH control release valve for sensitive feedback and control of BTA release. By adding MSNs-BTA@TAC to an organic-inorganic composite coating, a self-healing coating with pH feedback sensitivity and corrosion compensation function was prepared. The results showed significant self-healing effect of the coating after soaking in simulated body fluids, with a increase in low-frequency impedance modulus.
Article
Chemistry, Applied
R. del Olmo, E. Lopez, E. Matykina, U. Tiringer, J. M. C. Mol, M. Mohedano, R. Arrabal
Summary: This study evaluated the corrosion resistance of Flash-PEO coatings on AA2024-T3 alloy with different sealing post-treatments. It was found that the HSG-Ce coating exhibited significant scratch protection during immersion in 3.5 wt% NaCl solution.
PROGRESS IN ORGANIC COATINGS
(2023)
Article
Chemistry, Physical
Guillaume Lollivier, Marie Gressier, Florence Ansart, Maelenn Aufray, Marie-Joelle Menu
Summary: Self-healing polymers are a new class of materials that have attracted a lot of attention recently for their potential to improve the lifespan of various applications. By incorporating aminosilane into a self-healing organic polymer, enhanced anticorrosion properties were achieved, along with wound closure at higher temperatures. The results highlight the potential of sol-gel chemistry for efficient anticorrosion and self-healing coatings.
Article
Materials Science, Coatings & Films
R. del Olmo, U. Tiringer, I Milosev, P. Visser, R. Arrabal, E. Matykina, J. M. C. Mol
Summary: The study evaluated the synergistic effect of anodic film and hybrid sol-gel coating with corrosion inhibitors on enhancing barrier and active corrosion protection of aluminium alloy 2024-T3. The addition of Li- and Ce-based salts into the hybrid sol-gel formulation has shown to provide active corrosion protection. Ce-doped sol-gel coating exhibited less visual corrosion and higher active corrosion protection compared to the Li-containing one during the long-term immersion test in a 0.5 mol.L-1 NaCl solution.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Chemistry, Applied
Qianqian Kang, Wei Wang, Tong Wang, Zhipeng Mao, Wen Li, Peng Wang, Shougang Chen
Summary: In this study, a novel composite coating with excellent self-healing and anticorrosion properties has been developed. The coating is activated by photothermal responsive hollow core-shell nanofillers, which enhance light absorption capacity and photogenerated charges transfer efficiency. The coating demonstrates efficient repair of scratches through the photothermal effect, and exhibits remarkable self-healing efficiency and anticorrosive capabilities.
PROGRESS IN ORGANIC COATINGS
(2023)
Article
Materials Science, Ceramics
Yi Huang, Chenyang Zhao, Yue Li, Chen Wang, Tao Shen, Chunchun Wu, Zhongyuan Hu, Di Cheng, Hui Yang
Summary: Integration of corrosion inhibitor-loaded nanocontainers into sol-gel-derived anticorrosion coatings enhances their self-healing ability and long-term corrosion protection properties.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Diksha Sharma, Debaprasad Mandal
Summary: Self-stratifying coating is a single-coat application that produces multicoat films, enhancing both adhesion and surface properties simultaneously, suitable for special coatings and industrial applications. A self-healing multifunctional self-stratifying coating material has been developed by blending two copolymers based on fluorous/thiol/siloxane. The combination of silyl copolymer and fluorous copolymer results in spontaneous stratification into three layers with a gradient behavior. This transparent coating provides a highly hydrophobic surface with good hardness and can self-repair under UV light or by heating or spraying amine due to the thiol-Michael reaction.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Chenhao Ren, Yao Huang, Wenkui Hao, Dawei Zhang, Xiejing Luo, Lingwei Ma, Jinke Wang, Thee Chowwanonthapunya, Chaofang Dong, Xiaogang Li
Summary: This study introduces a new self-healing strategy that can simultaneously restore the corrosion resistance and adhesion strength of coatings. The strategy involves using shape memory epoxy resin with ethylene vinyl acetate microspheres loaded with Ce(NO3)(3) inhibitors, and curing it at a higher temperature to strengthen the self-healing effect. The results demonstrate that the shape memory effect of the epoxy matrix, the filling of molten microspheres, and the release of Ce(NO3)(3) inhibitors synergistically contribute to suppressing corrosion reactions at coating damage sites.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Polymer Science
Milad Sheydaei, Milad Edraki, Seyyed Mehdi Radeghi Mehrjou
Summary: In this study, Clitoria ternatea (CT) was incorporated into sodium montmorillonite (Na+-MMT), and the resulting nanoparticles (CT-MMT) were added to sol-gel-based hybrid silanol coatings (SGC). The presence of CT in the structure of CT-MMT was confirmed by various characterization techniques. The addition of CT-MMT improved the corrosion resistance of the coatings and also exhibited antimicrobial properties against gram-positive and gram-negative bacteria.
Article
Engineering, Multidisciplinary
Shunjie Luo, Jiangxiong Wei, Weiting Xu, Yang Chen, Haoliang Huang, Jie Hu, Qijun Yu
Summary: A novel functional organic-inorganic composite coating with high adhesion and barrier performance was designed to provide concrete with reliable protection in harsh and corrosive environments. The composite coating, assembled by incorporating kaolinite nanosheets into permeable epoxy resin, endowed the epoxy with reinforced cross-linking, high temperature stability, and enhanced barrier property. The composite coating exhibited stable bonding and excellent corrosion resistance with the concrete matrix.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Materials Science, Coatings & Films
Taoyuan Ouyang, Jinping Suo
Summary: TiC-based self-healing coatings have shown great potential in improving the lifetime of TBC by suppressing TGO growth. The TAZ20 coating exhibited sealing and filling effects, providing good oxidation resistance at high temperatures. Different structural strategies of TAZ20 coatings were found to influence their oxidation resistance performance.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Metallurgy & Metallurgical Engineering
K. S. Duran, N. Hernandez, L. M. Rueda, C. A. Hernandez-Barrios, A. E. Coy, F. Viejo
Summary: This study developed multilayer barrier-bioactive coatings to enhance the corrosion resistance of magnesium alloy and promote the growth of apatite-like phases. However, an increase in salt content led to the formation of porous coatings, affecting the corrosion resistance of magnesium alloy.
JOURNAL OF MAGNESIUM AND ALLOYS
(2021)
Article
Energy & Fuels
Kenneth A. Walz, Timothy D. Hoege, Joel W. Duensing, Walter A. Zeltner, Marc A. Anderson
Summary: This paper presents the application and field trial results of nanoporous metal oxide ceramic coatings prepared using sol-gel techniques on solar photovoltaic modules. The coatings impart anti-static properties, improve wetting behavior, and degrade soiling deposits through photocatalytic activity. The results of the trial are significant for the commercialization of this coating technology and provide motivation for further research and development efforts.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2023)
Article
Materials Science, Multidisciplinary
Chengbao Liu, Hao Wu, Yujie Qiang, Haichao Zhao, Liping Wang
Summary: This designed supramolecular polyurethane coating is capable of early corrosion reporting for steel and efficient self-healing under room temperature, saltwater, and hypothermia conditions. The autonomous self-healing is attributed to the dynamic interactions of hydrogen bonds. The coating enables nondestructive detection of metallic materials corrosion and autonomous repair of damage.
Article
Materials Science, Composites
Wouter Post, E. Jeoffroy, S. J. Garcia, S. van der Zwaag
POLYMER COMPOSITES
(2019)
Article
Electrochemistry
Paul J. Denissen, Santiago J. Garcia
ELECTROCHIMICA ACTA
(2019)
Article
Chemistry, Multidisciplinary
Alexander Baer, Nils Horbelt, Marlies Nijemeisland, Santiago J. Garcia, Peter Fratzl, Stephan Schmidt, Georg Mayer, Matthew J. Harrington
Article
Polymer Science
Sil Nevejans, Nicholas Ballard, Mercedes Fernandez, Bernd Reck, Santiago J. Garcia, Jose M. Asua
Article
Nanoscience & Nanotechnology
Paul J. Denissen, Viacheslav Shkirskiy, Polina Volovitch, Santiago J. Garcia
ACS APPLIED MATERIALS & INTERFACES
(2020)
Article
Polymer Science
Linda Ritzen, Vincenzo Montano, Santiago J. Garcia
Summary: The study focused on utilizing self-healing polymers for 3D printing and investigating their mechanical properties and self-healing behavior. The complete process demonstrated that the 3D printed self-healing polyurethane exhibited similar performance to the bulk material.
Article
Materials Science, Multidisciplinary
Emanuele Rossi, Hongzhi Zhang, Santiago J. Garcia, Johan Bijleveld, Timo G. Nijland, Oguzhan Copuroglu, Rob B. Polder, Branko Savija
Summary: The study investigated the elastic modulus of naturally-generated chloride-induced corrosion products in different concrete mixes. Microstructural characterization was carried out using nano-indentation, electron microscopy, and Raman spectroscopy. The results showed that the corrosion products consist mainly of a goethite matrix with portions of maghemite, and the elastic modulus varied between 80-100 GPa.
Article
Materials Science, Multidisciplinary
Matteo Olgiati, Paul J. Denissen, Santiago J. Garcia
Summary: A hyphenated optical-electrochemical technique and image analysis protocol were used to quantify global and local corrosion processes of intermetallic compounds (IMs). The study found an early composition-dependent activation of IMs attributed to dealloying, followed by trenching initiated at matrix locations adjacent to previously dealloyed IMs, leading to concentric trenching. Dealloying kinetics were composition-dependent while trenching kinetics were composition and size independent for IMs.
Article
Electrochemistry
A. M. Homborg, M. Olgiati, P. J. Denissen, S. J. Garcia
Summary: This work investigates the effectiveness and durability of an anodic and cathodic corrosion inhibitor through integrated analysis of in-situ optical data and time-frequency information from electrochemical potential noise data. The results show that neither cerium(III) nor phytic acid can effectively inhibit the corrosion of aluminum alloy. This study effectively distinguishes the time-variant changes between corrosion, inhibitor activity, inhibited state, and re-activation.
ELECTROCHIMICA ACTA
(2022)
Article
Materials Science, Coatings & Films
Paul J. Denissen, Axel M. Homborg, Santiago J. Garcia
Summary: This study uses a diffusion-driven inhibitor transport model to aid in the design of inhibitor-loaded carriers for anticorrosive primers. The results show that nano-particles can only protect small damages of micron size dimensions, while micron-sized carriers allow for sufficient release to protect larger damages at lower pigment volume concentrations.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Chemistry, Physical
V Montano, M. W. Urban, S. van der Zwaag, S. J. Garcia
Summary: This study quantifies the role of stored entropic energy in polymer structure on scratch closure and self-healing in coatings. The closure of damage is linearly related to entropy release and controlled by two network parameters, junction density and damping factor.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Materials Science, Multidisciplinary
Vincenzo Montano, Wouter Vogel, Angela Smits, Sybrand van der Zwaag, Santiago J. Garcia
Summary: This study investigates the effects of the soft block fraction and H-bond state in thermoplastic polyurethanes on autonomous entropy-driven scratch closure and barrier restoration. It is found that while softer polyurethanes can efficiently close cracks, they are unable to sufficiently restore barrier properties.
ACS APPLIED POLYMER MATERIALS
(2021)
Article
Chemistry, Physical
Vincenzo Montano, Michele Senardi, Sybrand van der Zwaag, Santiago J. Garcia
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2020)
Article
Chemistry, Physical
Vincenzo Montano, Stephen J. Picken, Sybrand van der Zwaag, Santiago J. Garcia
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2019)
Article
Electrochemistry
Paul J. Denissen, Axel M. Homborg, Santiago J. Garcia
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2019)
